United States v. BDO Seidman ( 2007 )


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  •                               In the
    United States Court of Appeals
    For the Seventh Circuit
    ____________
    Nos. 05-3260 & 05-3518
    UNITED STATES OF AMERICA,
    Petitioner-Appellant,
    Cross-Appellee,
    v.
    BDO SEIDMAN, LLP, regarding IRS
    examination of BDO Seidman, LLP,
    Respondent-Appellee,
    and,
    ROBERT S. CUILLO, et al.,
    Intervenors-Appellees,
    Cross-Appellants.
    ____________
    Appeals from the United States District Court
    for the Northern District of Illinois, Eastern Division.
    No. 02 C 4822—James F. Holderman, Chief Judge.
    ____________
    ARGUED SEPTEMBER 11, 2006—DECIDED JULY 2, 2007
    ____________
    Before RIPPLE, KANNE and WILLIAMS, Circuit Judges.
    RIPPLE, Circuit Judge. This is the third appeal arising
    out of an effort by the Internal Revenue Service (“IRS”) to
    enforce administrative summonses against BDO Seidman,
    2                                    Nos. 05-3260 & 05-3518
    LLP (“BDO”), an accounting firm that allegedly failed to
    disclose potentially abusive tax shelters that it promoted.
    See United States v. BDO Seidman, 
    337 F.3d 802
     (7th Cir.
    2003) (BDO II); United States v. BDO Seidman, Nos. 02-3914
    & 02-3915, 
    2002 WL 32080709
     (7th Cir. Dec. 18, 2002) (BDO
    I). The IRS now appeals the district court’s ruling that
    sustained BDO’s claim of attorney-client privilege with
    respect to a memorandum written by one of BDO’s em-
    ployees. The IRS also appeals a separate ruling that sus-
    tained the tax practitioner and/or attorney-client privilege
    asserted by a number of BDO’s clients (“Intervenors”)
    with respect to 266 documents. The Intervenors cross-
    appeal the district court’s ruling that one document,
    Document A-40, fell within the crime-fraud exception to
    the attorney-client and/or tax practitioner privilege. For
    the reasons set for forth in this opinion, we affirm in part
    and vacate and remand in part.
    I
    BACKGROUND
    A. The Enforcement Action
    In September 2000, the IRS received information suggest-
    ing that BDO was promoting potentially abusive tax
    shelters without complying with the Internal Revenue
    Code’s (“IRC”) listing requirements for such tax shelters.
    See 
    26 U.S.C. §§ 6111
    (a), 6112(a) (2000); BDO II, 
    337 F.3d at 806
    . Potentially abusive tax shelters included those trans-
    actions defined as “tax shelters” under § 6111(c) and ar-
    rangements identified by regulation as potentially abusive
    Nos. 05-3260 & 05-3518                                          3
    under § 6112(b).1 Organizers of any potentially abusive
    tax shelter were required to maintain a list of persons to
    whom an interest in the shelter was sold. See 
    26 U.S.C. § 6112
    (a) (2000). Additionally, organizers and sellers of
    § 6111(c) tax shelters were required to register the tax
    shelter with the IRS. See id. § 6111(a). Failure to follow
    these registration and list-keeping requirements was sanc-
    tionable by penalties. See id. §§ 6707, 6708.2
    The IRS commenced a compliance investigation into
    BDO’s alleged violations. The IRS issued twenty sum-
    monses commanding production of documents, testimony
    relating to the transactions and information on the identity
    of the clients who had invested in the transactions. BDO II,
    1
    Sections 6111 and 6112 of the IRC were amended by the
    American Jobs Creation Act of 2004, Pub. L. No. 108-357, § 815,
    
    118 Stat. 1418
    , 1581-83 (2004). The Act eliminated the distinc-
    tion between § 6111(c) tax shelters and other arrangements
    identified by the Secretary under § 6112(b)(2) by replacing the
    terms “tax shelter” and “potentially abusive tax shelter” with
    “reportable transaction.” Reportable transactions are “any
    transaction[s] with respect to which information is required to
    be included with a return or statement because . . . such transac-
    tion is of a type which the Secretary determines as having a
    potential for tax avoidance or evasion.” 26 U.S.C. § 6707A. All
    reportable transactions must be reported to the IRS, see id.
    § 6111(a) (2000 & Supp. IV 2004), and must satisfy the IRC’s list-
    keeping requirements, see id. § 6112(a).
    2
    Sections 6707 and 6708 also were amended by the American
    Jobs Creation Act, see Pub. L. No. 108-357, §§ 816-817, 
    118 Stat. 1418
    , 1583-84 (2004), but they continue to provide penalties
    for failure to comply with the registration and list-keeping
    requirements of §§ 6111 and 6112. See 
    26 U.S.C. §§ 6707
     & 6708
    (2000 & Supp. IV 2004).
    4                                   Nos. 05-3260 & 05-3518
    
    337 F.3d at 805-06
    . When BDO resisted these summonses,
    the IRS petitioned the United States District Court for the
    Northern District of Illinois for enforcement. 
    Id. at 806
    .
    BDO contended that the summonses could not be en-
    forced because the investigation had no legitimate purpose.
    It also contended that the summonses were overbroad,
    issued in bad faith and sought information already in the
    IRS’ possession. Lastly, BDO submitted that the informa-
    tion sought was irrelevant to the investigation. 
    Id. at 806
    .
    BDO further asserted that a number of the documents
    were protected by the attorney-client privilege, the tax
    practitioner privilege under 
    26 U.S.C. § 7525
    (a) or work
    product protection. BDO II, 
    337 F.3d at 806
    . The district
    court ruled that the IRS had issued the summonses in good
    faith and that enforcement would not constitute an abuse
    of process. It ordered BDO to produce all responsive
    documents except for those previously listed on privilege
    logs and submitted to the court by BDO for in camera
    inspection. 
    Id. at 806-07
    .
    BDO then notified its clients that it intended to produce
    documents that would reveal their identities to the IRS.
    In response, a number of clients sought to intervene as of
    right in order to assert the tax practitioner privilege under
    
    26 U.S.C. § 7525
    (a).3 The district court denied the motions
    to intervene, holding that the tax practitioner privilege
    would not prevent disclosure of the clients’ names. See
    BDO II, 
    337 F.3d at 807
    . The clients appealed this denial
    to this court.
    On December 18, 2002, we entered an order remanding
    the case to the district court to permit it to undertake an
    3
    See John and Jane Does Emergency Motion to Intervene, R.38;
    Richard and Mary Roes Emergency Motion to Intervene, R.42.
    Nos. 05-3260 & 05-3518                                    5
    in camera inspection of the documents for which the
    would-be anonymous intervenors asserted a privilege. See
    BDO I, 
    2002 WL 32080709
    , at *1. We ordered the district
    court to make more extensive findings with respect to the
    claim of tax practitioner privilege for each document,
    taking into account the totality of the circumstances. 
    Id.
    After conducting this in camera review, the district court
    determined that the tax practitioner privilege did not
    prevent disclosure of the clients’ identities. R.73 at 7-31.
    The clients again appealed, and we affirmed the district
    court’s ruling on the question of privilege and its denial
    of the motions to intervene. BDO II, 
    337 F.3d at 813
    .
    After our decision affirming the district court’s denial
    of the anonymous clients’ motion to intervene, the Inter-
    venors sought intervention as of right in order to assert a
    claim of privilege under the attorney-client privilege, tax
    practitioner privilege or work product doctrine with
    respect to 267 documents. The IRS filed a document titled
    “United States’ Concurrence in Intervenors’ Motions to
    Intervene and Challenge to Claims of Privilege” in which
    it argued that the district court should grant the motion,
    or, in the alternative, deny the claim of privilege. The IRS
    and the Intervenors also filed a joint motion in which the
    IRS consented to the intervention and the parties set
    forth a proposed briefing schedule. On July 15, 2004, the
    district court granted the Intervenors’ motion.
    B. Intervenors’ Claims
    The Intervenors asserted attorney-client privilege, tax
    practitioner privilege or work product protection with
    respect to 267 documents. The IRS submitted that the
    documents either were not covered by the tax practitioner
    6                                   Nos. 05-3260 & 05-3518
    privilege under the tax shelter exception found in 
    26 U.S.C. § 7525
    (b), as it existed at the time of the communications,
    or that the documents fell within the crime-fraud exception
    to both the attorney-client and tax practitioner privileges.
    According to the IRS, BDO, in conjunction with other
    firms, had engaged in the practice of selling prepackaged
    tax shelters, the sole purpose of which was the unlawful
    attempt to evade tax liability. The district court determined
    that the IRS had failed to make a prima facie showing of
    crime or fraud that would justify a blanket determination
    that all of the documents fell within the crime-fraud
    exception. R.178 at 16. The court noted that, just because
    the IRS characterized the transactions “as abusive and
    unlawful cookie cutter tax shelters,” such a characterization
    did not make them so. Id. at 17. The court added that the
    question of whether BDO and the Intervenors had violated
    the IRC was the ultimate issue in the IRS’ investigation and
    that a finding of fraud based solely on the IRS’ allegations
    “would place the proverbial ‘Cart before the Horse.’ ” Id. In
    a footnote, the district court added that, based on these
    same considerations, it could not hold that the Intervenors
    or BDO were engaged in tax shelters which would fall
    within the tax shelter exception to the tax practitioner
    privilege. Id. at n.6.
    Although the district court was unwilling to apply the
    crime-fraud exception in blanket fashion, it proceeded to
    review each document in camera to determine whether
    individual documents fell within the crime-fraud excep-
    tion. Id. at 18. In conducting the review, the district court
    looked to the totality of the circumstances to determine
    whether there was sufficient evidence of crime or fraud to
    bring a document within this exception. Id. at 23. To guide
    this evaluation, the district court identified eight non-
    Nos. 05-3260 & 05-3518                                            7
    exclusive, non-determinative “potential indicators of
    fraud” which it drew from arguments made by the IRS,
    from two other cases involving allegedly fraudulent
    practices by BDO and from an unrelated IRS enforcement
    action against another accounting firm. R.178 at 23.4 Based
    4
    The first case to which the district court looked in deriving its
    potential indicators of fraud was Denney v. Jenkens & Gilchrist,
    
    340 F. Supp. 2d 338
     (S.D.N.Y. 2004). That case involved a civil
    RICO class action in which the plaintiffs alleged that Jenkens &
    Gilchrist had developed and BDO and others had marketed a
    tax shelter known as the Currency Options Bring Reward
    Alternatives (“COBRA”). BDO sought to enforce an arbitration
    clause in its consulting agreements. Based on what it deemed
    to be admissions by the parties, the court in Denney concluded
    that BDO and its clients had engaged in mutual fraud in
    connection with the consulting agreements to conceal the true
    purpose of the agreements: providing the clients with tax
    shelters advice. 
    Id. at 346
    . Because the contracts were the
    product of mutual fraud between BDO and its clients, the
    arbitration clause was unenforceable. 
    Id. at 347
    . The court based
    its conclusion that the contracts were mutually fraudulent on
    the vague language in the consulting agreements and its find-
    ings that BDO did not provide any of the consulting services
    described in the agreements. 
    Id. at 346-47
    .
    The next case the district court looked to in developing its
    potential indicators of fraud was Miron v. BDO Seidman, LLP,
    
    342 F. Supp. 2d 324
     (E.D. Pa. 2004). Like Denney, Miron involved
    the enforceability of an arbitration clause in one of BDO’s
    consulting agreements and related to the COBRA transaction.
    See 
    id. at 327
    . The district court in Miron noted the factors that
    led the court in Denney to find that the consulting agreements
    had been the product of mutual fraud, but concluded that the
    consulting agreements at issue were factually distinguishable.
    (continued...)
    8                                       Nos. 05-3260 & 05-3518
    on these cases and other factors that the IRS had submitted
    were indicative of fraud, the district court arrived at the
    following eight factors to guide its in camera review of
    each of the 267 documents:
    (1) the marketing of pre-packaged transactions by
    BDO; (2) the communication by the Intervenors to
    BDO with the purpose of engaging in a pre-arranged
    4
    (...continued)
    See 
    id. at 329-30
    . In particular, the court found that BDO had
    provided the services described in its consulting agreements.
    
    Id.
     The court in Miron noted also that, unlike the consulting
    agreements in Denney, in which the only identified goal was
    expanding business operations, the consulting agreements at
    issue were intended to limit also the clients’ financial exposure
    on those expansions. 
    Id. at 329
    . Based on these differences, the
    court concluded that the consulting agreements were not
    similarly suggestive of fraud. 
    Id.
    The third case to which the district court looked in arriving
    at its potential indicators of fraud was United States v. KPMG
    LLP, 
    316 F. Supp. 2d 30
     (D.D.C. 2004). Unlike Denney and Miron,
    KPMG did not involve BDO. KPMG involved an action brought
    by the IRS to enforce summonses it issued to the accounting firm
    of KPMG as part of its investigation into KPMG’s alleged
    promotion of, and participation in, tax shelters. 
    Id. at 31-32
    . The
    court in KPMG held that boilerplate opinion letters provided
    to KPMG clients by the law firm of Brown & Wood were not
    protected by the attorney-client privilege because they had
    been provided as a part of “KPMG’s marketing machine” rather
    than as reasoned legal advice. 
    Id. at 40
    . The district court in the
    present action found the findings of the court in KPMG consis-
    tent with the IRS’ allegation that BDO had engaged in the
    promotion of prepackaged tax shelters rather than individual-
    ized tax advice. See R.178 at 23.
    Nos. 05-3260 & 05-3518                                     9
    transaction developed by BDO or [a] third party with
    the sole purpose of reducing taxable income; (3) BDO
    and/or the Intervenors attempting to conceal the true
    nature of the transaction; (4) knowledge by BDO, or a
    situation where BDO should have known, that the
    Intervenors lacked a legitimate business purpose for
    entering into the transaction; (5) vaguely worded
    consulting agreements; (6) failure by BDO to provide
    services under the consulting agreement yet receipt
    of payment; (7) mention of the COBRA transaction;
    and (8) use of boiler-plate documents.
    R.178 at 23. The court further noted that the presence of
    these factors alone would not be sufficient to establish a
    prima facie case of fraud. See id. at 23-24. Rather, the
    potential indicators of fraud were intended to serve
    merely as guideposts. See id. at 24. The ultimate question of
    whether a prima facie showing of crime or fraud had
    been made with respect to a particular document was to
    be determined under the totality of circumstances.
    Based on this review, the district court held that, with
    the exception of Document A-40, the IRS had failed to make
    a prima facie showing of a crime or fraud. Id. at 24. Thus,
    the district court upheld the Intervenors’ claim of privilege
    with respect to 266 of the 267 documents, although it did
    not specify which privilege (attorney-client or tax practi-
    tioner) applied to each document. See id. at 13-14, 29.
    After finding prima facie evidence that Document A-40
    fell within the crime-fraud exception, the district court
    permitted the Intervenors to provide an explanation that
    would negate the evidence of crime or fraud. Id. at 24. The
    Intervenors provided their explanation to the court and
    the IRS responded. On May 17, 2005, after finding the
    Intervenors’ explanation insufficient to rebut the prima
    10                                    Nos. 05-3260 & 05-3518
    facie evidence of crime or fraud, the district court ruled
    that Document A-40 fell within the crime-fraud excep-
    tion to the tax practitioner or attorney-client privilege.
    R.190 at 10.
    After the district court issued its final ruling with respect
    to Document A-40, the Court of Appeals for the Second
    Circuit reversed the decision of the United States District
    Court for the Southern District of New York in Denney v.
    Jenkens & Gilchrist, 
    340 F. Supp. 2d 338
     (S.D.N.Y. 2004). See
    Denney v. BDO Seidman, L.L.P., 
    412 F.3d 58
    , 66 (2d Cir.
    2005). The Intervenors moved for reconsideration under
    Rule 60(b) of the Federal Rules of Civil Procedure, argu-
    ing that, because the district court had relied on Denney
    when establishing the factors that would guide its in
    camera review of each document, the court should reexam-
    ine its earlier ruling. R.210 at 2-3. The district court denied
    the motion, holding that the Second Circuit’s decision did
    not affect the controlling law in this case. Id. at 3. The
    court added that its finding of prima facie evidence of
    crime or fraud was based on the totality of the circum-
    stances, an inquiry guided, but not controlled, by the
    eight factors it previously had identified. Id. at 6.
    C. BDO’s Privilege Claims
    While its clients were seeking to intervene to protect their
    claims of privilege, BDO asserted its own claims of
    attorney-client privilege and work product protection
    with respect to 110 documents. The IRS responded that
    the documents were neither protected attorney-client
    communications nor work product, and, even if they were,
    the documents fell within the crime-fraud exception. R.127
    at 2. After conducting an in camera inspection of each
    Nos. 05-3260 & 05-3518                                         11
    document, the district court determined that 103 of the
    documents were within the attorney-client privilege and
    that one other document, though not covered by the
    attorney-client privilege, fell within the work product
    doctrine. Id. at 3-9. However, the court concluded that
    six documents, as submitted to the court in redacted
    form, were not within the attorney-client privilege and
    ordered their disclosure as so redacted. Id. at 7. Based on
    the same in camera review, the district court found no
    evidence that the communications in 104 documents
    protected by the attorney-client privilege or work prod-
    uct doctrine were made to further a crime or fraud. Id.
    at 10.
    One of the 104 documents that the district court had
    found to fall within the attorney-client privilege was a
    memorandum written by Michael Kerekes (“Kerekes
    Memorandum”). Kerekes was a lawyer and partner at
    BDO. In August 2000, he wrote a memorandum to BDO’s
    outside counsel, David Dreier, a tax attorney with the law
    firm of White & Case LLP, requesting legal advice on
    pending IRS regulations. In January 2001, Donna Guerin,
    an attorney at the law firm of Jenkens & Gilchrist, received
    a copy of the memorandum under circumstances that
    remain the subject of dispute.5 At the time attorney Guerin
    5
    Guerin received the memorandum by fax. She asserts that the
    memorandum was sent to her by Robert Greisman, a partner
    with BDO. Greisman contends that he does not remember fax-
    ing the memorandum to Guerin and that on the day it was
    faxed to her he was at a meeting at a hotel in Los Angeles. There
    is no record of a fax having been sent from the hotel to Jenkens
    & Gilchrist on that day and the document itself does not display
    (continued...)
    12                                     Nos. 05-3260 & 05-3518
    received the Kerekes Memorandum, Jenkens & Gilchrist
    did not represent BDO, but these two entities, one an
    accounting firm and the other a law firm, serviced jointly
    clients on the same or related matters. According to
    attorney Guerin, she received the letter from BDO as input
    into an opinion letter regarding tax shelters that Jenkens &
    Gilchrist was preparing for both BDO and their common
    clients. Although BDO and Jenkens & Gilchrist subse-
    quently were co-defendants in civil litigation, see, e.g.,
    Denney v. Jenkens & Gilchrist, 
    340 F. Supp. 2d 338
    , there
    was no litigation pending against BDO or Jenkens &
    Gilchrist at the time attorney Guerin received the Kerekes
    Memorandum.
    After the district court’s ruling on BDO’s claim of
    privilege for the 110 documents, the IRS received the
    Kerekes Memorandum from Jenkens & Gilchrist in re-
    sponse to a subpoena. Upon viewing the memorandum, the
    IRS requested the court reconsider its privilege ruling with
    respect to the Kerekes Memorandum. The IRS asserted that
    5
    (...continued)
    the phone number of the origin of the fax. Further, the memo-
    randum was not received in a single transmission. The last
    three pages of the memorandum were sent at around 3:20 p.m.,
    with the balance of the memorandum, that is, the first portion of
    the memorandum, being sent in a separate transmission at
    around 4:00 p.m. In addition to the memorandum being sent out
    of order in two transmissions, the fax heading indicates that
    those portions of the memorandum sent at around 3:20 p.m.
    began at the second page of the transmission. The fax heading
    of the transmission sent around 4:00 p.m. indicates that the
    portion of the memorandum sent at that time began at the
    eighth page of the transmission. The balance of both transmis-
    sions does not appear in the record.
    Nos. 05-3260 & 05-3518                                      13
    the document fell within the crime-fraud exception to the
    attorney-client privilege or, alternatively, that the privilege
    had been waived. Based on its prior in camera review of
    the document, the district court rejected the IRS’ claim that
    the Kerekes Memorandum fell within the crime-fraud
    exception. R.180 at 3-4. The court noted that, even though
    the contents of the Kerekes Memorandum were new to the
    IRS, they were not new to the court, and it had considered
    the arguments presented by the IRS in its prior in camera
    review of the Kerekes Memorandum. The district court
    further held that disclosure of the Kerekes Memorandum
    to attorney Guerin did not waive BDO’s claim of privilege
    because the memorandum related to a common legal
    interest shared by BDO and Jenkens & Gilchrist and
    therefore fell within the common interest doctrine. Id. at 6.
    The district court added that it would reach the same
    conclusion even if the common interest doctrine did not
    apply because it had found ample precedent to sustain the
    privilege as an unintentional disclosure. Id.
    II
    DISCUSSION
    The IRS timely appealed the district court’s ruling
    with respect to the Kerekes Memorandum. The IRS con-
    tends that BDO waived any claim of privilege with respect
    to the memorandum when it disclosed the document to
    attorney Guerin. The IRS submits that the common interest
    doctrine does not apply because the communication
    was not made in anticipation of litigation. It further
    contends that the disclosure was voluntary, and, therefore,
    BDO cannot claim that the privilege is preserved because
    any disclosure was inadvertent. Alternatively, the IRS
    14                                    Nos. 05-3260 & 05-3518
    contends that the district court erred by not reconsider-
    ing its ruling that there was no evidence of crime or
    fraud in connection with the Kerekes Memorandum after
    it found such evidence with respect to Document A-40.
    The IRS also appeals the district court’s ruling that the
    tax shelter exception to the tax practitioner privilege, 
    26 U.S.C. § 7525
    (b) (2000), does not apply to the 267 docu-
    ments for which the Intervenors claimed the privilege. The
    IRS contends that the burden was on the Intervenors to
    prove that the tax shelter exception did not apply, a bur-
    den the IRS claims the Intervenors did not meet.
    The Intervenors cross-appeal the district court’s finding
    of prima facie evidence of crime or fraud with respect to
    Document A-40. The Intervenors submit that the district
    court’s finding was in error because the IRS failed to make
    a prima facie showing of each element of a particular
    crime or common law fraud.
    A. The Kerekes Memorandum
    We first shall address whether the district court erred in
    sustaining BDO’s claim of attorney-client privilege under
    the common interest doctrine and in rejecting the IRS’
    position that the Kerekes Memorandum fell within the
    crime-fraud exception to the attorney-client privilege.
    We review all necessary findings of fact and all applica-
    tions of law to fact in connection with the district court’s
    ruling on a privilege claim for clear error. See United States
    v. Frederick, 
    182 F.3d 496
    , 499 (7th Cir. 1999) (application of
    law to fact); United States v. Evans, 
    113 F.3d 1457
    , 1461 (7th
    Cir. 1997) (findings of fact). We shall reverse only if, on
    review of the entire evidence, we are “left with the definite
    Nos. 05-3260 & 05-3518                                   15
    and firm conviction that a mistake has been committed.”
    Malachinski v. Comm’r, 
    268 F.3d 497
    , 505 (7th Cir. 2001)
    (quoting Coleman v. Comm’r, 
    16 F.3d 821
    , 824 (7th Cir.
    1994)) (internal quotation marks omitted). On the other
    hand, the scope of a privilege is a question of law that
    we review de novo. See BDO II, 
    337 F.3d at 809
    . We review
    a district court’s decision regarding the crime-fraud
    exception for an abuse of discretion. United States v. Al-
    Shahin, 
    474 F.3d 941
    , 946 (7th Cir. 2007).
    In federal courts, except when state law supplies the
    applicable rule of law, the attorney-client privilege is
    “governed by the principles of the common law as [it] may
    be interpreted by the courts of the United States in the
    light of reason and experience.” Fed. R. Evid. 501. Al-
    though it ultimately was not adopted by Congress, the
    rule of attorney-client privilege promulgated by the
    Supreme Court in 1972 as part of the Proposed Federal
    Rules of Evidence has been recognized “as a source of
    general guidance regarding federal common law princi-
    ples.” In re Grand Jury Investigation, 
    399 F.3d 527
    , 532 (2d
    Cir. 2005); see also 3 Jack B. Weinstein & Margaret A.
    Berger, Weinstein’s Federal Evidence § 503.02 (Joseph M.
    McLaughlin, ed., 2d ed. 2006). Proposed Rule 503 provided:
    A client has a privilege to refuse to disclose and to
    prevent any other person from disclosing confiden-
    tial communications made for the purpose of facilitat-
    ing the rendition of professional legal services to the
    client, (1) between himself or his representative and
    his lawyer or his lawyer’s representative, or (2) be-
    tween his lawyer and the lawyer’s representative, or
    (3) by him or his lawyer to a lawyer representing
    another in a matter of common interest, or (4) between
    representatives of the client or between the client and
    16                                   Nos. 05-3260 & 05-3518
    a representative of the client, or (5) between lawyers
    representing the client.
    See Proposed Fed. R. Evid. 503(b), 
    56 F.R.D. 183
    , 236 (1972).
    Put simply, in order for the attorney-client privilege to
    attach, the communication in question must be made: (1) in
    confidence; (2) in connection with the provision of legal
    services; (3) to an attorney; and (4) in the context of an
    attorney-client relationship.
    The purpose of the privilege is to “encourage full disclo-
    sure and to facilitate open communication between attor-
    neys and their clients.” BDO II, 
    337 F.3d at 810
    . Open
    communication assists lawyers in rendering legal advice,
    not only to represent their clients in ongoing litigation,
    but also to prevent litigation by advising clients to con-
    form their conduct to the law and by addressing legal
    concerns that may inhibit clients from engaging in other-
    wise lawful and socially beneficial activities. See Frederick,
    
    182 F.3d at 500
    . The cost of these benefits is the withholding
    of relevant information from the courts. BDO II, 
    337 F.3d at 811
    .
    Recognizing the inherent tension between the beneficial
    goals of the attorney-client privilege and the courts’ right
    to every person’s evidence, the courts have articulated
    the following principles to inform our analysis of the
    scope of the common interest doctrine:
    (1) “[C]ourts construe the privilege to apply only
    where necessary to achieve its purpose.” 
    Id.
    (2) Only those communications which “reflect the
    lawyer’s thinking [or] are made for the purpose
    of eliciting the lawyer’s professional advice or
    other legal assistance” fall within the privilege.
    Frederick, 
    182 F.3d at 500
    .
    Nos. 05-3260 & 05-3518                                      17
    (3) Because one of the objectives of the privilege is
    assisting clients in conforming their conduct to the
    law, litigation need not be pending for the com-
    munication to be made in connection to the provi-
    sion of legal services. See United States v. Schwim-
    mer, 
    892 F.2d 237
    , 243-44 (2d Cir. 1989).
    (4) Because “the privilege is in derogation of the
    search for truth,” any exceptions to the require-
    ments of the attorney-client privilege “must be
    strictly confined.” In re Grand Jury Proceedings
    (Thullen), 
    220 F.3d 568
    , 571 (7th Cir. 2000).
    Although occasionally termed a privilege itself, the
    common interest doctrine is really an exception to the rule
    that no privilege attaches to communications between a
    client and an attorney in the presence of a third person. See
    Robinson v. Texas Auto. Dealers Ass’n, 
    214 F.R.D. 432
    , 443
    (E.D. Tex. 2003). In effect, the common interest doctrine
    extends the attorney-client privilege to otherwise non-
    confidential communications in limited circumstances.
    For that reason, the common interest doctrine only will
    apply where the parties undertake a joint effort with
    respect to a common legal interest, and the doctrine is
    limited strictly to those communications made to further
    an ongoing enterprise. See Evans, 
    113 F.3d at 1467
    . Other
    than these limits, however, the common defense doctrine
    does not contract the attorney-client privilege. Thus,
    communications need not be made in anticipation of
    litigation to fall within the common interest doctrine.6
    6
    The weight of authority favors our conclusion that litigation
    need not be actual or imminent for communications to be with-
    in the common interest doctrine. At least five of our sister
    (continued...)
    18                                       Nos. 05-3260 & 05-3518
    Applying the common interest doctrine to the full range of
    communications otherwise protected by the attorney-client
    privilege encourages parties with a shared legal interest
    to seek legal “assistance in order to meet legal require-
    ments and to plan their conduct” accordingly. See In re
    Regents of the Univ. of California, 
    101 F.3d 1386
    , 1390-91 (Fed.
    Cir. 1996). This planning serves the public interest by
    advancing compliance with the law, “facilitating the
    administration of justice” and averting litigation. 
    Id. at 1391
    . Reason and experience demonstrate that joint ven-
    turers, no less than individuals, benefit from planning
    their activities based on sound legal advice predicated
    upon open communication.
    Having determined that BDO is not barred from assert-
    ing attorney-client privilege under the common interest
    6
    (...continued)
    circuits have recognized that the threat of litigation is not a
    prerequisite to the common interest doctrine. See In re Grand Jury
    Subpoena (Custodian of Records, Newparent, Inc.), 
    274 F.3d 563
    , 572
    (1st Cir. 2001); In re Regents of the Univ. of California, 
    101 F.3d 1386
    , 1390-91 (Fed. Cir. 1996); United States v. Aramony, 
    88 F.3d 1369
    , 1392 (4th Cir. 1996); United States v. Schwimmer, 
    892 F.2d 237
    , 244 (2d Cir. 1989); United States v. Zolin, 
    809 F.2d 1411
    , 1417
    (9th Cir. 1987), aff’d in part and vacated in part on other grounds,
    United States v. Zolin, 
    491 U.S. 554
     (1989). We have found only
    one circuit that requires a “palpable threat of litigation at the
    time of the communication.” United States v. Newell, 
    315 F.3d 510
    , 525 (5th Cir. 2002) (quoting In re Santa Fe Int’l Corp., 
    272 F.3d 705
    , 711 (5th Cir. 2001)). This position runs contrary to the
    “established [rule] that the attorney-client privilege is not
    limited to actions taken and advice obtained in the shadow
    of litigation.” In re Regents of the Univ. of California, 
    101 F.3d at 1390
    .
    Nos. 05-3260 & 05-3518                                     19
    doctrine simply because it was not shared under the
    threat of litigation, we next shall determine whether the
    district court’s ruling on BDO’s claim of privilege was
    clearly erroneous. The district court recognized that the
    scope of the common interest doctrine is limited to a
    common legal interest to which the parties formed a
    common strategy. See R.180 at 6. The district court con-
    cluded that BDO and Jenkens & Gilchrist, acting as joint
    venturers, shared a common legal interest “in ensuring
    compliance with the new regulation issued by the IRS,” 
    id.,
    and in making sure that they could defend their product
    against potential IRS enforcement actions.
    There was, moreover, sufficient evidence to support the
    district court’s determination in this regard. The Kerekes
    Memorandum originally was addressed to BDO’s outside
    counsel, White & Case, and it sought advice on a legal
    question. At the time attorney Guerin received the Kerekes
    Memorandum, BDO and Jenkens & Gilchrist jointly
    serviced a number of common clients with respect to
    certain tax products. According to Guerin, Robert
    Greisman, a partner at BDO, sent her the memorandum
    as part of BDO’s effort to coordinate with Jenkens &
    Gilchrist a common legal position that BDO and Jenkens &
    Gilchrist would communicate later to these common
    clients.7
    Nonetheless, the IRS asserts that, because the purpose of
    the communication was to coordinate the content of the
    message to their common clients, the communication
    between BDO and Jenkens & Gilchrist was not made for
    7
    There is no contention that the final communication from the
    joint venturers to their clients was privileged.
    20                                   Nos. 05-3260 & 05-3518
    the purpose of securing advice with respect to a common
    legal interest and, therefore, was not within the scope of the
    common interest doctrine. However, even if the ultimate
    reason for sharing the Kerekes Memorandum was to
    advance the joint interests of BDO and Jenkens & Gilchrist
    in their representations to their common clients, it does not
    follow that the communication itself was not made to
    secure legal advice with respect to a common legal interest.
    Communications do not cease to be for the purpose of
    receiving legal services just because the recipient intended
    to use the fruits of the legal services to guide its relations
    with customers. In essence, through the memorandum, two
    joint venturers, BDO and Jenkens & Gilchrist, undertook a
    consultation between their respective in-house counsel and
    BDO’s outside counsel with respect to the legality of the
    proposed financial course of action they would recommend
    to their common clients. This effort, as the district court
    recognized, was clearly within the scope of the common
    interest doctrine.
    The district court’s findings do not leave us “with the
    definite and firm conviction that a mistake has been
    committed.” Malachinski, 
    268 F.3d at 505
     (quoting Coleman,
    
    16 F.3d at 824
    ) (internal quotation marks omitted). The
    district court’s finding that the communication of the
    Kerekes Memorandum to attorney Guerin was within the
    common interest doctrine was not clearly erroneous.
    Further, because the privileged status of communications
    falling within the common interest doctrine cannot be
    waived without the consent of all of the parties, Jenkens &
    Gilchrist’s subsequent voluntary disclosure of the Kerekes
    Memorandum in response to the IRS’ subpoena did not
    waive BDO’s claim of privilege. See John Morrell & Co. v.
    Local Union 304A of the United Food & Commercial Workers,
    Nos. 05-3260 & 05-3518                                         21
    AFL-CIO, 
    913 F.2d 544
    , 556 (8th Cir. 1990); In re Grand Jury
    Subpoenas (89-3 & 89-4, John Doe 89-129), 
    902 F.2d 244
    , 248
    (4th Cir. 1990); see also Advisory Committee’s Note, Pro-
    posed Fed. R. Evid. 503(b), 
    56 F.R.D. 183
    , 239 (1972).89
    8
    The district court held in the alternative that, even if the
    Kerekes Memorandum did not fall within the common interest
    doctrine, disclosure of the memorandum by BDO to attorney
    Guerin was inadvertent. The court concluded that, because
    the disclosure was inadvertent, BDO had not waived its claim
    of privilege for the memorandum. The IRS also challenges
    this alternative holding. Because the district court’s applica-
    tion of the common interest doctrine was not clear error, we
    need not address this alternative ruling.
    9
    The IRS contends that, after the court found that Document A-
    40 fell within the crime-fraud exception, the district court
    should have revisited its conclusion that the crime-fraud
    exception to the attorney-client privilege did not vitiate the
    privilege with respect to the Kerekes Memorandum.
    The IRS did challenge specifically the district court’s earlier
    determination that the crime-fraud exception did not apply
    to the Kerekes Memorandum. See R.152 (sealed). This chal-
    lenge pre-dated, however, the district court’s determination
    with respect to Document A-40. Indeed, on the same day that
    the district court announced its initial conclusion that the IRS
    had made a prima facie showing that the communications in
    Document A-40 were made in furtherance of crime or fraud,
    the district court rejected the IRS’ identical challenge to the
    Kerekes Memorandum. At no time after the district court
    stated that it had found prima facie evidence of crime or fraud
    with respect to Document A-40 did the IRS request the dis-
    trict court to re-evaluate its earlier ruling with respect to the
    Kerekes Memorandum. The IRS was not without opportunity
    to raise the issue. As discussed in greater detail in Part II.B,
    (continued...)
    22                                       Nos. 05-3260 & 05-3518
    B. Document A-40
    We now address whether the district court erred when it
    held that the Intervenors could not assert a privilege with
    respect to Document A-40 because the document fell within
    the crime-fraud exception to the attorney-client and tax
    practitioner privileges. We review a district court’s decision
    regarding the crime-fraud exception for an abuse of
    discretion. Al-Shahin, 
    474 F.3d at 946
    .
    9
    (...continued)
    after concluding that there was prima facie evidence that
    Document A-40 fell within the crime-fraud exception, both the
    Intervenors and the IRS were permitted to submit additional
    arguments about the applicability of the crime-fraud exception
    to Document A-40. The IRS availed itself of this opportunity
    and filed additional memoranda with the court opposing the
    Intervenors’ answer to the court’s preliminary findings of crime
    or fraud with respect to Document A-40. Nowhere in these
    papers did the IRS request the district court revisit its earlier
    rulings on the Kerekes Memorandum.
    Based on this record, we must conclude that the IRS has
    waived this issue. We have recognized that the waiver rule
    exists to provide the district court with the first opportunity
    to rule on a party’s theories. Bailey v. Int’l Bhd. of Boilermakers,
    Iron Ship Builders, Blacksmiths, Forgers & Helpers, Local 374, 
    175 F.3d 526
    , 530 (7th Cir. 1999). This requirement assures that
    we shall not usurp the role of the district court by engaging
    in initial fact finding. 
    Id.
     It also assures an adequate record
    for review, 
    id.,
     a particularly important function in cases such
    as this one, where the fact-specific nature of the inquiry lies
    within the trial court’s particular expertise, see Frederick, 
    182 F.3d at 499
    . Because the issue the IRS presents on appeal was
    never before the district court, we are left with no basis to
    evaluate the district court’s ruling on a particularly fact-bound
    issue. The issue is waived.
    Nos. 05-3260 & 05-3518                                      23
    The crime-fraud exception places communications made
    in furtherance of a crime or fraud outside the attorney-
    client privilege. United States v. Zolin, 
    491 U.S. 554
    , 563
    (1989). The exception is based on the recognition that the
    privilege necessarily will “protect the confidences of
    wrongdoers.” 
    Id. at 562
    . This cost is accepted as necessary
    to achieve the privilege’s purpose of promoting the
    “broader public interests in the observance of law and
    the administration of justice.” 
    Id.
     (quoting Upjohn Co. v.
    United States, 
    449 U.S. 383
    , 389 (1981)) (internal quotation
    marks omitted). However, when the advice sought relates
    “not to prior wrongdoing, but to future wrongdoing,” the
    privilege goes beyond what is necessary to achieve its
    beneficial purposes. Id. at 562-63 (quoting 8 John Henry
    Wigmore, Evidence In Trials At Common Law § 2298 (John
    T. McNaughton rev. 1961)) (internal quotation marks
    omitted) (emphasis in original).
    To invoke the crime-fraud exception, the party seeking
    to abrogate the attorney-client privilege must present
    prima facie evidence that “gives colour to the charge” by
    showing “some foundation in fact.” Al-Shahin, 
    474 F.3d at 946
     (quoting Clark v. United States, 
    289 U.S. 1
    , 15 (1933))
    (internal quotation marks omitted). The party seeking to
    abrogate the privilege meets its burden by bringing forth
    sufficient evidence to justify the district court in requiring
    the proponent of the privilege to come forward with an
    explanation for the evidence offered against it. See United
    States v. Davis, 
    1 F.3d 606
    , 609 (7th Cir. 1993). The privilege
    will remain “if the district court finds [the] explanation
    satisfactory.” 
    Id.
    BDO and the Intervenors would require the party seeking
    to abrogate the attorney-client privilege to make out a
    prima facie case of each element of a particular crime or
    24                                      Nos. 05-3260 & 05-3518
    common law fraud to invoke the crime-fraud exception.
    Such a burden is inconsistent with our requirement that the
    party seeking to abrogate the privilege need only “give
    colour to the charge” by showing “some foundation in
    fact.” Al-Shahin, 
    474 F.3d at 946
     (quoting Clark, 
    289 U.S. at 15
    ) (internal quotation marks omitted). The approach
    advocated by BDO and the Intervenors reflects the view
    of some circuits, which require enough evidence of crime
    or fraud to support a verdict in order to invoke the crime-
    fraud exception. See In re Feldberg, 
    862 F.2d 622
    , 625 (7th
    Cir. 1988). We expressly have rejected that approach. See 
    id.
    We therefore must determine whether the district court
    abused its discretion in determining that the IRS had come
    forward with sufficient evidence to give color to its charge
    that Document A-40 was a communication in furtherance
    of a crime or fraud. The district court engaged in a
    document-by-document, in camera inspection of all 267
    documents for which the Intervenors claimed a privilege to
    determine whether they fell within the crime-fraud excep-
    tion. R.178 at 18. In determining whether there was prima
    facie evidence of criminal or fraudulent activity, the
    court looked at the totality of the circumstances, including
    the eight “potential indicators of fraud” discussed above.10
    10
    As noted above, the eight potential indicators of fraud
    identified by the district court were:
    (1) the marketing of pre-packaged transactions by BDO; (2)
    the communication by the Intervenors to BDO with the
    purpose of engaging in a pre-arranged transaction devel-
    oped by BDO or [a] third party with the sole purpose of
    reducing taxable income; (3) BDO and/or the Intervenors
    attempting to conceal the true nature of the transaction; (4)
    (continued...)
    Nos. 05-3260 & 05-3518                                       25
    See id. at 23. Based on the totality of circumstances, the
    district court found no prima facie evidence of crime or
    fraud with respect to 266 of the documents, a ruling that
    the IRS does not challenge.
    Applying the same totality of the circumstance approach,
    the district court found prima facie evidence of crime or
    fraud with respect to Document A-40 and instructed the
    Intervenors to come forward with an explanation that
    would rebut the evidence. Id. at 24. The Intervenors
    responded and the IRS provided further evidence to rebut
    the Intervenors’ response. After considering all of the
    evidence, the district court concluded that the Intervenors
    had failed to rebut the prima facie showing of crime or
    fraud. R.190 at 10.
    The Intervenors now challenge the district court’s ruling.
    First, the Intervenors point to the decision of the United
    States Court of Appeals for the Second Circuit in Denney
    v. BDO Seidman, L.L.P., 
    412 F.3d 58
     (2005), which reversed
    Denney v. Jenkens & Gilchrist, one of the cases from
    which the district court derived its potential indicators of
    10
    (...continued)
    knowledge by BDO, or a situation where BDO should have
    known, that the Intervenors lacked a legitimate business
    purpose for entering into the transaction; (5) vaguely
    worded consulting agreements; (6) failure by BDO to
    provide services under the consulting agreement yet re-
    ceipt of payment; (7) mention of the COBRA transaction;
    and (8) use of boiler-plate documents.
    R.178 at 23.
    26                                    Nos. 05-3260 & 05-3518
    fraud.11 See Denney v. BDO Seidman, 412 F.3d at 66. The
    Second Circuit’s decision in Denney v. BDO Seidman does
    not draw into question the district court’s totality of the
    circumstances analysis in this case.
    In Denney v. BDO Seidman, the Second Circuit held that
    the District Court for the Southern District of New York
    had erred when it concluded, without factual support in
    the record, that the parties had agreed that their agree-
    ments were mutually fraudulent. Denney v. BDO Seidman,
    412 F.3d at 66. The Second Circuit’s decision did not
    address whether facts such as mention of the COBRA
    transaction, vaguely worded consulting agreements or
    failure to provide services under the consulting agree-
    ments, i.e., the factors that the district court in the pres-
    ent case derived from Denney v. Jenkens & Gilchrist, would
    be indicative of fraud. Moreover, the district court in the
    present case did not place dispositive weight on any one
    of the “potential indicators of fraud,” nor did the court
    limit its analysis to the eight potential indicators. R.190
    at 5.
    The remainder of the Intervenors’ challenge asserts that
    the IRS could not defeat the Intervenors’ claim of privilege
    under the crime-fraud exception because the IRS had failed
    to allege a particular offense or the elements of common
    law fraud, and, in any event, the Intervenors had come
    forward with rebuttal evidence showing a legitimate
    purpose underlying the transactions in question. As we
    already have noted, our case law does not require a party
    11
    The potential indicators of fraud the district court drew from
    Denney v. Jenkens & Gilchrist were mention of the COBRA
    transaction, vaguely worded consulting agreements and
    failure to provide services under the consulting agreements.
    Nos. 05-3260 & 05-3518                                    27
    seeking to invoke the crime-fraud exception to allege a
    particular offense or to make a prima facie showing with
    respect to each element of common law fraud. The IRS only
    was required to present sufficient evidence to “give colour
    to the charge” that the communication was made in
    furtherance of a crime or fraud by showing “some founda-
    tion in fact.” Al-Shahin, 
    474 F.3d at 946
     (quoting Clark,
    
    289 U.S. at 15
    ) (internal quotation marks omitted).
    After concluding that there had been a prima facie
    showing that Document A-40 was a communication made
    in furtherance of a crime or fraud, the district court gave
    the Intervenors the opportunity to explain the communica-
    tion. The Intervenors offered an explanation, but the
    district court did not find it satisfactory. Nor was the
    district court required to find the explanation satisfactory.
    Thus, the district court did not abuse its discretion when
    it concluded that the IRS had made a prima facie show-
    ing of crime or fraud which the Intervenors failed to
    explain satisfactorily.
    C. Tax Practitioner Privilege
    We now shall address whether the district court correctly
    applied the tax practitioner privilege found in § 7525 to the
    facts of this case. Prior to 2004, § 7525 provided:
    § 7525. Confidentiality privileges relating to taxpayer
    communications
    (a) Uniform application to taxpayer communications
    with federally authorized practitioners.—
    (1) General rule.—With respect to tax advice, the
    same common law protections of confidentiality
    which apply to a communication between a tax-
    28                                  Nos. 05-3260 & 05-3518
    payer and an attorney shall also apply to a commu-
    nication between a taxpayer and any federally
    authorized tax practitioner to the extent the com-
    munication would be considered a privileged
    communication if it were between a taxpayer and
    an attorney.
    (2) Limitations. Paragraph (1) may only be asserted
    in—
    (A) any noncriminal tax matter before the
    Internal Revenue Service; and
    (B) any noncriminal tax proceeding in Federal
    court brought by or against the United States.
    (3) Definitions. For purposes of this subsection—
    (A) Federally authorized tax practitioner. The
    term “federally authorized tax practitioner”
    means any individual who is authorized under
    Federal law to practice before the Internal
    Revenue Service if such practice is subject to
    Federal regulation under section 330 of title 31,
    United States Code.
    (B) Tax advice. The term “tax advice” means
    advice given by an individual with respect to a
    matter which is within the scope of the individ-
    ual’s authority to practice described in sub-
    paragraph (A).
    (b) Section not to apply to communications regarding
    corporate tax shelters. The privilege under subsection
    (a) shall not apply to any written communication
    between a federally authorized tax practitioner and a
    director, shareholder, officer, or employee, agent, or
    representative of a corporation in connection with the
    Nos. 05-3260 & 05-3518                                      29
    promotion of the direct or indirect participation of
    such corporation in any tax shelter (as defined in
    section 6662(d)(2)(C)(iii)).
    
    26 U.S.C. § 7525
     (2000). To determine whether the district
    court correctly applied § 7525, we first must address: (1)
    the elements of the privilege and, specifically, whether
    the “exception” to the privilege for communications related
    to tax shelters is an element of the privilege or whether it is
    a true exception; and (2) the scope of the tax shelter excep-
    tion.
    1. Elements of the Tax Practitioner Privilege
    As with all assertions of privilege, the proponent of the
    tax practitioner privilege must establish each element of the
    privilege. See BDO II, 
    337 F.3d at 811
    . On the other hand,
    with respect to exceptions to the privilege, the burden rests
    on the party seeking to overcome an otherwise valid claim
    of privilege to prove preliminary facts that would sup-
    port a finding that the claimed privilege falls within an
    exception. See Charles Alan Wright & Kenneth W. Graham,
    Jr., 24 Federal Practice & Procedure § 5507, at 571 (1986).
    The IRS submits that § 7525(b)’s (“subsection (b)”) tax
    shelter “exception” to the tax practitioner privilege is not
    an exception to the privilege, but an element of the privi-
    lege itself. Thus, under the IRS’ theory, the party asserting
    the privilege must establish that the communication was
    not made, in the words of the statute, “in connection with
    the promotion of the direct or indirect participation . . . in
    any tax shelter.” 
    26 U.S.C. § 7525
    (b) (2000). The Intervenors,
    on the other hand, contend that the tax shelter “exception”
    is a true exception to the tax practitioner privilege, and,
    consequently, the opponent of the privilege bears the
    30                                       Nos. 05-3260 & 05-3518
    burden of establishing that the communication falls within
    the exception.
    Prior to the American Jobs Creation Act of 2004, Pub. L.
    No. 108-357, 
    118 Stat. 1418
     (2004),12 subsection (b) read:
    The privilege under subsection (a) shall not apply
    to any written communication between a federally
    authorized tax practitioner and a director, shareholder,
    officer, or employee, agent, or representative of a
    corporation in connection with the promotion of the
    direct or indirect participation of such corporation in
    any tax shelter (as defined in section 6662(d)(2)(C)(iii)).
    12
    The American Jobs Creation Act of 2004, Pub. L. No. 108-357,
    
    118 Stat. 1418
     (2004), amended subsection (b) to read:
    The privilege under subsection (a) shall not apply to any
    written communication which is—
    (1) between a federally authorized tax practitioner and
    (A) any person,
    (B) any director, officer, employee, agent, or repre-
    sentative of the person, or
    (C) any other person holding a capital or profits
    interest in the person, and
    (2) in connection with the promotion of the direct or
    indirect participation of the person in any tax shelter (as
    defined in section 6662(d)(2)(C)(ii)).
    
    26 U.S.C. § 7525
    (b) (2000 & Supp. IV 2004). These changes
    applied only to communications made after October 24, 2004. See
    American Jobs Creation Act of 2004, Pub. L. No. 108-357,
    § 813(b), 
    118 Stat. 1418
    , 1581 (2004). The Act did not amend
    the elements of the tax practitioner privilege set forth in
    § 7525(a).
    Nos. 05-3260 & 05-3518                                     31
    
    26 U.S.C. § 7525
    (b) (2000). The plain wording of this
    subsection evinces a clear intent to treat the rule embodied
    in subsection (b) as an exception to the tax practitioner
    privilege. The first sentence of subsection (b) refers to “the
    privilege under subsection (a).” 
    Id.
     The fact that the
    privilege does not apply to the class of communications
    described in subsection (b) presupposes the existence of
    an otherwise applicable privilege.
    This conclusion is supported further by the structure of
    § 7525 as a whole. Section 7525(a) (“subsection (a)”) sets out
    a general rule, id. § 7525(a)(1), specific limitations on the
    situations in which that rule may be asserted, id.
    § 7525(a)(2), and defines key terms that further limit the
    scope of the rule, id. § 7525(a)(3). By placing some specific
    limitations on the general rule together with the general
    rule in subsection (a) while placing other limitations on
    the general rule in subsection (b), the structure of the
    statute suggests that not all limitations to the privilege are
    of the same character. The most natural reading of the
    section as a whole is to consider those limitations to the
    scope of the general rule found in subsection (a) to consti-
    tute elements of the privilege and those limitations found
    in subsection (b) as exceptions to the application of that
    privilege.
    The rationale underlying the tax shelter exception further
    supports this conclusion. Subsection (b) originally was
    added in conference committee. The report of the confer-
    ence committee explained that “[t]he Conferees [did] not
    understand the promotion of tax shelters to be part of the
    routine relationship between a tax practitioner and a
    client.” H.R. Rep. No. 105-599 at 269 (1998) (Conf. Rep.).
    This rationale is analogous to the rationale underlying the
    crime-fraud exception, i.e., advice given to further future
    32                                    Nos. 05-3260 & 05-3518
    crime or fraud goes beyond what is necessary to achieve
    the beneficial aims of the privilege. See Zolin, 
    491 U.S. at 562
    . Thus, in both situations, the rationale underlying
    the limitation on the claimed privilege goes to the neces-
    sity of the communications to achieve the beneficial aims of
    the privilege.
    Thus, based on the text, structure and purpose of subsec-
    tion (b), it is clear that the tax shelter “exception” is a true
    exception to the tax practitioner privilege. As with any
    other exception to a claimed privilege, the burden rests on
    the opponent of the privilege to prove preliminary facts
    that would support a finding that the claimed privilege
    falls within an exception. Cf. Wright & Graham, 24 Federal
    Practice & Procedure § 5507, at 571. As with the crime-
    fraud exception, the opponent meets this burden by
    bringing forth enough evidence to show “some foundation
    in fact” that the exception applies. Cf. Al-Shahin, 
    474 F.3d at 946
     (quoting Clark, 
    289 U.S. at 15
    ) (internal quotation
    marks omitted).
    2. Scope of the Tax Shelter Exception
    The Intervenors contend that the tax shelter exception
    found in subsection (b) applies only to tax shelters that
    shelter corporate taxes. The Intervenors rely on the sub-
    section’s heading and the legislative history of subsection
    (b) to support this contention. The IRS, on the other hand,
    submits that the tax shelter exception, as it existed in 2002,
    was not so limited. To support its position, the IRS relies
    on the text of the statute and the legislative history of
    subsection (b). The question thus becomes whether the tax
    shelter to which the communication relates must shelter
    corporate, as opposed to individual, taxes.
    Nos. 05-3260 & 05-3518                                         33
    We begin with the text of the statute. “Only if the plain
    language of the statute is inconclusive or clearly contra-
    venes expressed congressional intent do we look beyond
    the words themselves.” Oneida Tribe of Indians v. Wisconsin,
    
    951 F.2d 757
    , 761 (7th Cir. 1991). To discern the scope of the
    tax shelter exception, we must look to the elements of the
    exception. To fall within subsection (b), a communication
    must be: (1) written; (2) “between a federally authorized
    tax practitioner and a director, shareholder, officer, or
    employee, agent, or representative of a corporation”; and
    (3) made “in connection with the promotion of the direct or
    indirect participation of such corporation in any tax
    shelter” as defined by 
    26 U.S.C. § 6662
    (d)(2)(C)(ii).13 
    26 U.S.C. § 7525
    (b) (2000). The plain text appears to apply to
    any tax shelter falling within the definition of a tax shelter
    found at 
    26 U.S.C. § 6662
    (d)(2)(C)(ii), and at least one
    district court has found that the tax shelter exception
    applies to individuals when the tax shelter required the
    participation of a corporation. See Doe v. Wachovia Corp.,
    
    268 F. Supp. 2d 627
     (W.D.N.C. 2003).
    The Intervenors contend that subsection (b)’s heading,
    which, prior to the 2004 amendments, read “[s]ection not to
    apply to communications regarding corporate tax shelters,”
    see 
    26 U.S.C. § 7525
    (b) (2000), demonstrated a clear congres-
    sional intent to limit subsection (b) to tax shelters for
    corporate income taxes. As a general rule, “[t]he title of a
    statute . . . cannot limit the plain meaning of the text.”
    13
    Prior to 2004, subsection (b) referred to the definition of “tax
    shelter” found at 
    26 U.S.C. § 6662
    (d)(2)(C)(iii). As a result of
    amendments to § 6662, that definition is found now at 
    26 U.S.C. § 6662
    (d)(2)(C)(ii). For ease of analysis, we shall refer to the
    current code section.
    34                                     Nos. 05-3260 & 05-3518
    Pennsylvania Dep’t of Corr. v. Yeskey, 
    524 U.S. 206
    , 212 (1998)
    (quoting Bhd. of R.R. Trainmen v. Baltimore & Ohio R.R. Co.,
    
    331 U.S. 519
    , 528-29 (1943)) (internal quotation marks
    omitted) (omissions in original). A statute’s heading is “of
    use only when [it] shed[s] light on some ambiguous word
    or phrase.” Yeskey, 
    524 U.S. at 212
     (quoting Bhd. of R.R.
    Trainmen, 331 U.S. at 529) (internal quotation marks
    omitted) (alterations in original). As noted above, subsec-
    tion (b) is not ambiguous. If anything, the heading adds
    ambiguity to subsection (b). Absent this heading, the
    subsection would not seem limited to corporate tax shelters
    at all.
    Although the section heading suggests that Congress had
    corporate tax shelters in mind, “the fact that a statute can
    be applied in situations not expressly anticipated by
    Congress” demonstrates breadth, not ambiguity. Yeskey,
    
    524 U.S. at 212
     (quoting Sedima, S.P.L.R. v. Imrex Co., 
    473 U.S. 479
    , 499 (1985)) (internal quotation marks omitted).
    The plain language of subsection (b) is certainly broad
    because it applies to “any written communication . . . in
    connection with the promotion of the direct or indirect
    participation of such corporation in any tax shelter,”
    
    26 U.S.C. § 7525
    (b) (2000) (emphasis added), but such
    breadth does not make the text ambiguous.
    Further evidence of the intended breadth of the statute
    is found in its reference to the relatively broad “tax shelter”
    definition found in 
    26 U.S.C. § 6662
    (d)(2)(C)(ii) as op-
    posed to the narrower definitions found in the pre-2004
    version of 
    26 U.S.C. § 6111.14
     The definition of “tax shelter”
    14
    See supra note 1. It is worth noting that the American Jobs
    Creation Act of 2004 left the definition of “tax shelter” found in
    § 6662(d)(2)(C)(ii) unchanged.
    Nos. 05-3260 & 05-3518                                         35
    found at 
    26 U.S.C. § 6662
    (d)(2)(C)(ii) defines a “tax shelter”
    as any partnership, entity, plan or arrangement, a signifi-
    cant purpose of which is the avoidance or evasion of
    Federal income tax. 
    26 U.S.C. § 6662
    (d)(2)(C)(ii).15
    Because subsection (b) is not ambiguous, we need not
    look to legislative history to determine its meaning. How-
    ever, even if we were to consider legislative history, we
    would not find it useful because that history creates more
    ambiguity than it eliminates. Even the legislative history
    that the Intervenors cite in support of its argument that
    subsection (b) is limited to corporate taxes raises more
    questions than it answers. The Conference Report upon
    which the Intervenors rely states that the tax shelters to
    which subsection (b) applies “include, but are not limited to,
    those required to be registered as confidential corporate
    tax shelter arrangements under section 6111(d).” H.R. Rep.
    15
    Prior to the 2004 amendments to the section, 
    26 U.S.C. § 6111
    contained two definitions of “tax shelter” applicable only to
    § 6111. One of these definitions defined a “tax shelter” as cer-
    tain investments for which the representations made in con-
    nection with the sale of the investment would lead “any person”
    to believe that the investment would produce a “tax shelter
    ratio” over a threshold amount. 
    26 U.S.C. § 6111
    (c)(1) (2000). The
    other definition of “tax shelter” previously found in § 6111
    defined “tax shelter” as any partnership, entity, plan or arrange-
    ment, a significant purpose of which is the avoidance or evasion
    of Federal income tax for a direct or indirect participant which
    is a corporation, that is offered under conditions of confiden-
    tiality, and for which the promoters receive commissions
    exceeding $100,000. Id. § 6111(d)(1). In contrast, 
    26 U.S.C. § 6662
    (d)(2)(C)(ii) makes no reference to dollar or “tax shelter
    ratio” thresholds, nor does it require the tax shelter to benefit
    a corporation.
    36                                    Nos. 05-3260 & 05-3518
    No. 105-599 at 269 (1998) (Conf. Rep.) (emphasis added).
    All this statement tells us is that the tax shelters referenced
    in subsection (b) reach a broader class of arrangements
    than the confidential corporate tax shelters then defined
    in § 6111(d). It says nothing of how much broader the
    exception is intended to sweep.
    The rest of the legislative history is equally unenlighten-
    ing. Subsection (b) was added to the bill in conference
    committee and had not been part of the prior debate on the
    legislation. After subsection (b) was added, one of the key
    architects of the bill expressed concern that the privilege
    itself would lead to confusion and litigation. See 144 Cong.
    Rec. S7626 (daily ed. July 8, 1998) (statement of Sen.
    Moynihan). Confusion regarding the scope of the tax
    shelter exception was not limited to members of Congress;
    tax practitioners themselves expressed confusion as to the
    breadth of the tax shelter exception. See Sheryl Stratton,
    Accountant-Client Privilege: Unclear from the Start, 
    80 Tax Notes 7
     (July 6, 1998).
    Next, the Intervenors contend that the tax shelter excep-
    tion applies only to communications “when the corpora-
    tion is the taxpayer.” Intervenor’s Br. at 20 (italics in origi-
    nal). According to the Intervenors, communication between
    a federally authorized tax practitioner and an S corpora-
    tion’s officers or agents in connection with the S corpora-
    tion’s participation in a tax shelter therefore would not
    fall within the tax shelter exception. The Intervenors assert
    that S corporations are not taxpayers and that “corpora-
    tion” in this context means a C corporation.16 Id. at 20-21.
    16
    A number of the Intervenors participated in BDO’s programs
    through S corporations.
    Nos. 05-3260 & 05-3518                                         37
    We cannot accept this argument. S corporations are both
    taxpayers and corporations under the IRC.17 Although
    S corporations are not subject to taxes imposed by subtitle
    A, chapter 1 of the IRC, see id. § 1363(a), this exception
    merely means that they do not pay directly income taxes.
    Section 1363 does not exempt S corporations from other
    taxes imposed by the IRC, such as employment taxes
    (subtitle C) and excise taxes (subtitles D and E). Notably,
    the IRC defines “taxpayers” as “any person subject to any
    internal revenue tax.” Id. § 7701(a)(14) (emphasis added).18
    This definition applies throughout the IRC, except when
    “otherwise distinctly expressed or manifestly incompati-
    ble” with the intent of the statute. Id. § 7701(a). Section 7525
    does not express distinctly any intent to define “taxpayer”
    only to include income tax payers, nor would it be “mani-
    festly incompatible” with § 7525 to extend the tax practitio-
    ner privilege to advice given in connection with taxes other
    than income taxes.
    Additionally, S corporations must calculate their taxable
    income, id. § 1363(b), and file a return, id. § 6037(a). Fur-
    ther, the S corporation’s taxable income is calculated in the
    same manner as an individual’s, with certain exceptions
    which are not relevant here. Id. § 1363(b). Indeed, apart
    17
    If S corporations were not taxpayers, then the tax shelter
    exception is irrelevant, as the tax practitioner privilege applies
    only to “communication[s] between a taxpayer and any federally
    authorized tax practitioner.” 
    26 U.S.C. § 7525
    (a)(1). If the
    S corporation is not a taxpayer, the S corporation has no
    privilege to assert with respect to communications between the
    S corporation’s director, shareholder, officer, employee, agent
    or representative and a federally authorized tax practitioner.
    18
    A corporation is a person for purposes of the IRC. See 
    26 U.S.C. § 7701
    (a)(1).
    38                                     Nos. 05-3260 & 05-3518
    from non-separately computed income or losses, which are
    not relevant here, the S corporation calculates the income
    or losses passed through to its shareholders by calculating
    the S corporation’s gross income and subtracting “the
    deductions allowed to the corporation.” 
    Id.
     § 1366(a)(2)
    (emphasis added).
    The Intervenors provide no support for their argument
    that the term “corporation,” as used in § 7525(b) only
    means “C corporation.” The IRC itself defines an S corpora-
    tion as a “small business corporation for which an election
    under section 1362(a) is in effect,” id. § 1361(a)(1); it defines
    a C corporation as “a corporation which is not an S corpo-
    ration,” id. § 1361(a)(2). This usage alone suggests that,
    when a particular section of the IRC is intended to apply
    only to C corporations, Congress will use that term, rather
    than the generic “corporation.” Additionally, the IRC and
    implementing Treasury Regulations define “corporation”
    for federal tax purposes as “a business entity organized
    under a Federal or State statute . . . if the statute describes
    or refers to the entity as incorporated or as a corporation.”
    
    26 C.F.R. § 301.7701-2
    (b)(1).
    The regulations relied upon by the Intervenors in sup-
    port of their argument that “corporation,” as used in
    subsection (b), means “C corporation” are inapposite.
    These regulations implement § 6111, which, as we have
    noted above, applies to a much narrower definition of “tax
    shelter” than the one applied in subsection (b). Congress
    chose to define “tax shelter” for purposes of subsection (b)
    using a broader definition than that found in § 6111.
    However narrowly the cited regulations may confine the
    application of § 6111, they are of little relevance in defin-
    ing the breadth of the definition found in 26 U.S.C.
    Nos. 05-3260 & 05-3518                                            39
    § 6662(d)(2)(C)(ii).19
    19
    The regulation to which the Intervenors refer, 
    26 C.F.R. § 301.6111-2
    , was promulgated prior to the 2004 amendments
    to § 6111 (the Intervenors actually cite the temporary regula-
    tions, but those regulations have since become permanent; the
    definition of confidential corporate income tax shelter in the
    permanent regulations is the same as that in the temporary reg-
    ulations). Section 6111 was and remains an anti-fraud statute,
    aimed at providing the IRS with records of financial products
    marketed for the purpose of reducing Federal income tax
    liability. The pre-2004 version of § 6111 identified two types
    of transactions for special scrutiny as “tax shelters.” See 
    26 U.S.C. § 6111
    (c) & (d) (2000). The first sort of transaction defined tax
    shelters generally as investments offered for sale that, based
    on the representations in connection with the offering, would
    lead a reasonable person to infer that the investment would
    generate deductions and credits exceeding statutorily defined
    ratio of deductions and credits to the adjusted basis of the
    initial investment. See 
    id.
     § 6111(c). Further, the investment had
    to be a registered security or “substantial.” Id. The second defini-
    tion of “tax shelter” deemed confidential transactions, a sig-
    nificant purpose of which was the avoidance or evasion of
    corporate income taxes and for which the tax shelter’s promoter
    may receive at least $100,000 in fees, to be tax shelters. Id.
    § 6111(d). As is evident from the first definition of “tax shelter”
    found in the pre-2004 version of § 6111, the section as a whole
    is not limited in its consideration to corporate tax shelters.
    The regulations the Intervenors cite implement the pre-2004
    version of § 6111 only with respect to the second definition of
    tax shelter, which was only one of the types of transactions
    identified by § 6111 as requiring special scrutiny. The current
    regulations continue to identify confidential corporate income
    tax shelters for purposes of implementing § 6111, even though
    (continued...)
    40                                       Nos. 05-3260 & 05-3518
    Finally, we address the Intervenors’ contention that
    application of the tax shelter exception to tax shelters that
    do not involve corporate income taxes would “consume[]
    the general rule” by destroying the privilege any time a
    corporation participates in a tax shelter. Intervenors’ Br. at
    20. The Intervenors submit that, if the tax shelter exception
    19
    (...continued)
    § 6111 no longer uses the term “tax shelter.”
    Section 6662, on the other hand, is concerned with distinct
    issues. Section 6662 deals with penalties for underpayment of a
    taxpayer’s tax liability. When an understatement of income is
    “substantial,” § 6662 imposes a penalty of twenty percent of the
    amount of taxes underpaid. 
    26 U.S.C. § 6662
    (a)-(b). However,
    § 6662 provides that taxpayers may reduce the amount of an
    understatement, and hence the penalty imposed, by that por-
    tion of the understatement resulting from a position taken by
    the taxpayer for which there was substantial authority or, if
    the position is disclosed adequately on the tax return, for
    which there was a reasonable basis for such treatment. Id.
    § 6662(d)(2)(B). As an exception to this general rule, however,
    § 6662 provides that that portion of an understatement attribut-
    able to a tax shelter, i.e., a transaction into which the taxpayer
    enters, the substantial purpose of which is to avoid or evade
    income taxes, cannot be used to reduce the amount of the
    taxpayer’s understatement, and hence the penalty imposed. Id.
    § 6662(d)(2)(B)(i). Thus, § 6662 reflects a congressional policy
    decision that understatements above a particular threshold, i.e.,
    substantial understatements, merit penalties. It also has made
    the policy choice that certain positions taken on tax returns, i.e.,
    those supported by substantial authority or, when properly
    disclosed, a rational basis, should not result in the taxpayer
    incurring penalties unless the position taken is the result of a
    transaction into which the taxpayer entered for the purpose
    of evading or avoiding taxes.
    Nos. 05-3260 & 05-3518                                      41
    extends to individual income taxes, any time a corporation,
    such as a banking corporation or investment corporation,
    is involved in the tax shelter, the general rule of tax practi-
    tioner privilege will be negated.
    A close look at the tax shelter exception makes clear
    that the Intervenors’ submission overstates significantly
    the scope of that exception. First, the exception applied
    only to written communications. Second, the written
    communication must have been between a federally
    authorized tax practitioner and a director, shareholder,
    officer, or employee, agent, or representative of a corpora-
    tion. Third, the written communication must have been “in
    connection with the promotion of the direct or indirect
    participation of such corporation in any tax shelter,” as
    defined in § 6662(d)(2)(C)(ii). 
    26 U.S.C. § 7525
    (b) (2000).
    Because the exception is limited to written communica-
    tions, oral communications between a tax practitioner
    and the corporate agent remain within the general rule of
    privilege. Further, because the tax shelter exception applies
    only when the written communication relates to the
    corporation’s direct or indirect participation in a particular
    type of tax shelter, i.e., one meeting the definition found
    in § 6662(d)(2)(C)(ii), the tax shelter exception will not
    affect any otherwise privileged communication that does
    not relate to a transaction falling within that definition.
    Most importantly, the tax shelter exception applies only
    to communications between the tax practitioner and the
    corporate agent. As noted earlier, the tax practitioner
    privilege is limited to communications that would be
    42                                     Nos. 05-3260 & 05-3518
    privileged if they had been made to an attorney.20 The
    attorney-client privilege protects only those statements
    made by the client to the attorney in confidence. See Evans,
    
    113 F.3d at 1462
    . A communication is not made in confi-
    dence when the client intends that the communication
    shall be disclosed to unprivileged third parties. See 2
    Christopher B. Mueller & Laird C. Kirkpatrick, Federal
    Evidence § 186, at 324 (2d ed. 1994); see also Proposed
    Fed. R. Evid. § 503(a)(4), 
    56 F.R.D. 183
    , 236 (1972) (“A com-
    munication is ‘confidential’ if not intended to be disclosed
    to third persons other than those to whom disclosure is
    20
    We have held previously that this limitation means that non-
    lawyer tax practitioners cannot claim the privilege when “doing
    other than lawyers’ work.” United States v. BDO Seidman, 
    337 F.3d 802
    , 810 (7th Cir. 2003) (quoting United States v. Frederick,
    
    182 F.3d 496
    , 502 (7th Cir. 1999)) (internal quotation marks
    omitted). This statement cannot be taken to mean that the tax
    practitioner privilege authorizes non-attorneys to engage in the
    practice of law when representing others before the IRS. By
    limiting the availability of the privilege to those individuals
    authorized to practice before the IRS subject to federal regula-
    tions and limiting the scope of the privilege to advice given
    within the individual’s authority as a federally authorized tax
    practitioner, see 
    26 U.S.C. § 7525
    (a)(1), (3), § 7525 clearly is
    not intended to alter the scope of a federally authorized tax
    practitioner’s authority to practice. Further, the regulations
    governing tax practitioners in activities before the IRS expressly
    state that nothing in the regulations shall “be construed as
    authorizing persons not members of the bar to practice law.” 
    31 C.F.R. § 10.32
    . Taken in context, our prior observations on
    the scope of the privilege recognize nothing more than com-
    munications, though technically within the scope of practice
    before the IRS, that would fall outside of the attorney-client
    privilege are also outside of the tax practitioner privilege.
    Nos. 05-3260 & 05-3518                                   43
    in furtherance of the rendition of professional legal ser-
    vices to the client or those reasonably necessary for the
    transmission of the communication.”). However, an
    exception to this general rule permits disclosure of confi-
    dential communications by the attorney to an expert
    retained for the purpose of rendering legal services. 2
    Mueller & Kirkpatrick, Federal Evidence § 186, at 324.
    The tax practitioner privilege protects those communica-
    tions which would be privileged if made to an attorney.
    See 
    26 U.S.C. § 7525
    (a). This protection is embodied both
    in the general rule regarding confidential communica-
    tions and in the exception for disclosures to experts
    retained to assist the tax practitioner. With respect to
    individual income taxpayers, the tax shelter exception has
    the effect of taking communications intended to be passed
    along in written form to corporate agents in connection
    with the corporation’s participation in a tax shelter out of
    the exception for communications to third party experts
    retained to assist the tax practitioner. Such communica-
    tions are subject to the general rule that communications
    to third parties are not privileged. For all other confiden-
    tial communications between the individual income tax
    payer and its tax practitioner, both the general rule and
    the exception for communications to a retained expert
    apply.
    Thus, we cannot accept the Intervenors’ prediction that
    application of the tax shelter exception to individual
    income tax payers, as it relates to communications made
    before October 21, 2004, would swallow the general rule
    of tax practitioner privilege any time a corporation was
    involved in the shelter.
    44                                  Nos. 05-3260 & 05-3518
    3. The District Court’s Decision
    We turn now to the district court’s ruling that the tax
    shelter exception did not apply to the Intervenors’ docu-
    ments. It is unclear what legal standard the district court
    applied in assessing the applicability of the tax shelter
    exception to the communications at issue. The district
    court disposed of the matter in a footnote, in which it
    stated that, for the same reasons it found that the IRS’
    characterization of the Intervernors’ conduct as falling
    within the crime-fraud exception, it did not find that the
    Intervenors engaged in tax shelters. See R.178 at 17 n.6.
    However, the tax shelter exception requires no show-
    ing of crime or fraud. Further, the record is unclear regard-
    ing what evidence, if any, was produced by the IRS to
    support its contention that the documents fell within
    the tax shelter exception. The IRS did contend that a
    significant purpose of the financial products purchased
    by the Intervenors was to avoid or evade federal income
    tax and the record reflects that some of the Intervenors had
    purchased the financial product through a corporation.
    R.135 at 11. However, the district court’s decision does not
    indicate how these allegations fell short of establishing
    the applicability of the tax shelter exception.
    Additionally, the district court did not note which claims
    of privilege were sustained based on the attorney-client
    privilege and which were sustained based on the tax
    practitioner privilege. See R.178 at 13-14, 29. Because we
    cannot evaluate the legal standard employed by the dis-
    trict court, remand is necessary. In re Grand Jury Proceed-
    ings (Thullen), 
    220 F.3d at 572
    . Thus, we must vacate the
    district court’s ruling with respect to the applicability of
    the tax shelter exception and remand for further consider-
    ation.
    Nos. 05-3260 & 05-3518                                      45
    On remand, for each of the 266 documents that the
    district court concluded to fall within a valid claim of
    privilege, the court should first determine whether the
    document falls within the attorney-client privilege, the tax
    practitioner privilege or both privileges. For those docu-
    ments that would fall within the attorney-client privilege or
    both the attorney-client and tax practitioner privilege,
    no further analysis is required, as the tax shelter excep-
    tion applies only to the tax practitioner privilege. See 
    26 U.S.C. § 7525
    (b) (2000). For those documents falling
    solely within the tax practitioner privilege, the burden
    rests upon the IRS to come forward with sufficient evi-
    dence to demonstrate some foundation in fact that a
    particular document falls within the tax shelter excep-
    tion. To meet this burden, the IRS must bring forward
    evidence that: (1) the communication relates to a tax
    shelter, as defined by § 6662(d)(2)(C)(ii); (2) the communi-
    cation was made by a director, shareholder, officer, or
    employee, agent, or representative of the corporation; and
    (3) the communication was made in connection with the
    promotion of the direct or indirect participation of the
    corporation in such tax shelter.
    Conclusion
    For the forgoing reasons, the decision of the district court
    is affirmed in part and vacated and remanded in part.
    AFFIRMED in part,
    VACATED and REMANDED in part
    46                              Nos. 05-3260 & 05-3518
    A true Copy:
    Teste:
    ________________________________
    Clerk of the United States Court of
    Appeals for the Seventh Circuit
    USCA-02-C-0072—7-2-07