106 Ltd. v. Commissioner, IRS , 684 F.3d 84 ( 2012 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued April 24, 2012                  Decided June 22, 2012
    No. 11-1242
    106 LTD., DAVID PALMLUND, TAX MATTERS PARTNER,
    APPELLANT
    v.
    COMMISSIONER OF INTERNAL REVENUE SERVICE,
    APPELLEE
    Appeal from the United States Tax Court
    Kyle R. Coleman argued the cause for the appellant.
    Patrick J. Urda, Attorney, United States Department of
    Justice, argued the cause for the appellee. Tamara W.
    Ashford, Deputy Assistant Attorney General, and Kenneth L.
    Greene, Attorney, were on brief.
    Before: SENTELLE, Chief Judge, HENDERSON and
    GARLAND, Circuit Judges.
    Opinion for the Court filed by Circuit Judge HENDERSON.
    KAREN LECRAFT HENDERSON, Circuit Judge: 106 Ltd.
    (Partnership), a limited partnership, appearing through its tax
    matters partner David Palmlund (Palmlund), appeals a
    decision of the United States Tax Court (Tax Court)
    2
    upholding the imposition of a forty per cent accuracy-related
    penalty by the Internal Revenue Service (IRS). See 106 Ltd.
    v. Comm’r, 
    136 T.C. 67
    (2011). The IRS determined that the
    Partnership had utilized a so-called “Son of BOSS” tax shelter
    to overstate its basis in Partnership interests by approximately
    $3 million and to thereby reduce Palmlund’s individual
    federal income tax liability by nearly $400,000. The sole
    issue before us is whether the Tax Court erred in determining
    that the Partnership failed to establish a reasonable cause
    defense to the accuracy-related penalty pursuant to 26 U.S.C.
    § 6664(c)(1). As set forth below, we affirm the Tax Court.
    I.
    A “Son of BOSS” tax shelter “employs a series of
    transactions to create artificial financial losses that are used to
    offset real financial gains, thereby reducing tax liability.”
    Petaluma FX Partners, LLC v. Comm’r, 
    591 F.3d 649
    , 650
    (D.C. Cir. 2010). 1 In 2000, the IRS identified the Son of
    BOSS tax shelter as an abusive transaction if used to generate
    artificial (i.e., non-economic) losses for tax purposes. Tax
    Avoidance Using Artificially High Basis, Notice 2000-44,
    2000-36 I.R.B. 255 (Sept. 5, 2000). The IRS also indicated
    1
    The shelter is a “variant of the Bond and Options Sales
    Strategy (‘BOSS’) shelter,” hence the name. Napoliello v. Comm’r,
    
    655 F.3d 1060
    , 1062 (9th Cir. 2011). The shelter
    involve[s] the transfer of assets along with
    significant liabilities to a partnership, with the goal
    of increasing basis in that partnership. The
    liabilities are not completely fixed at the time of
    transfer, so the partnership ignores them in
    computing basis. This results in high-basis assets
    that produce large tax—but not out-of-pocket—
    losses.
    106 Ltd., 
    136 T.C. 70
    n.2.
    3
    that “purported losses from these transactions (and from any
    similar arrangements designed to produce noneconomic tax
    losses by artificially overstating basis in partnership interests)
    are not allowable as deductions for federal income tax
    purposes.” 
    Id. at 255. Palmlund
    is an executive recruiter and business
    consultant in Dallas, Texas. 2 He has previously held
    executive positions at several companies, including American
    Home Shield, Eastman Kodak and Merrill Lynch Realty.
    Palmlund also operated a real estate investment partnership,
    formed a family limited partnership called Palmlund Ltd. with
    the stated purpose of “investments” and actively managed
    several personal bank and brokerage accounts. 106 Ltd., 
    136 T.C. 69
    . For the 2001 tax year, he reported nearly
    $2 million in income. Since the early 1990s, Palmlund has
    used Joe Garza as his personal lawyer, including for legal
    work related to wills and trusts. He has used Turner, Stone &
    Company, LLP (Turner & Stone), an accounting firm, to
    prepare his tax returns for more than ten years. According to
    the Tax Court’s findings, Palmlund was an active client who
    reviewed carefully every return Turner & Stone prepared.
    In early 2001, Garza approached Palmlund about a
    foreign currency investment opportunity that was a variation
    of a Son of BOSS shelter. Although initially uninterested,
    Palmlund later warmed up to the idea. After Garza explained
    the mechanics of the shelter and its tax advantages, Palmlund
    told Garza that he wanted to consult with Turner & Stone
    about it. Garza encouraged Palmlund to do so, telling
    Palmlund that he had worked with Turner & Stone on similar
    transactions in the past. Turner & Stone advised Palmlund
    that it had worked on similar shelters and recommended that
    2
    Unless otherwise noted, the facts are taken from the Tax
    Court’s decision and from the parties’ Stipulation of Facts.
    4
    he proceed.      Garza also “guaranteed” the transaction,
    promising to pay Palmlund’s litigation costs if the shelter
    were challenged and to refund his fee if the shelter were
    invalidated. Eventually, Palmlund directed Garza to take the
    necessary steps to implement the tax shelter.
    Using the Tax Court’s unchallenged description, we
    provide a brief summary of the shelter’s details. In November
    2001, Palmlund executed documents forming three entities,
    all of which he controlled: (1) the Partnership, (2) 32, LLC
    and (3) 7612, LLC. 7612, LLC bought offsetting long and
    short foreign currency digital options with premiums of $3
    million and $2.97 million, respectively, from Deutsche Bank. 3
    The actual cost of the options, however, was only $30,000—
    the difference in the premiums. 7612, LLC transferred both
    digital options to the Partnership. Next, 7612, LLC bought
    $4,000 worth of Canadian currency that it then transferred to
    the Partnership.     Finally, on December 26, 2001, the
    Partnership distributed thirty-five per cent of the Canadian
    currency—with a value of $1,400—to Palmlund Ltd., the
    family limited partnership previously formed by Palmlund.
    Meanwhile, at Palmlund’s request, the Partnership terminated
    the digital options on December 4 for a profit of $10,000,
    excluding fees owed to Garza for implementing the shelter
    (which fees totaled either $72,000 or $95,000).
    On the Partnership’s 2001 tax return prepared by Turner
    & Stone, it reported a basis in the distributed Canadian
    currency of $2,974,000. On Palmlund’s individual tax
    return—also prepared by Turner & Stone—he claimed a flow-
    through loss of $1,030,491 from the distribution of the
    3
    An option is digital if its “pay-off [is] a fixed amount if the
    option expire[s] ‘in the money’ or nothing at all if the option
    expire[s] ‘out of the money.’ ” Stobie Creek Invs. LLC v. United
    States, 
    608 F.3d 1366
    , 1372 (Fed. Cir. 2010).
    5
    Canadian currency. In effect, Palmlund used the Son of
    BOSS tax shelter to reduce his total income by over
    $1 million and thereby reduce his tax liability by nearly
    $400,000. 4 Turner & Stone initially understated Palmlund’s
    loss attributable to the distribution of the Canadian currency
    because it assumed a distribution of only thirty-three per cent
    to Palmlund Ltd. Palmlund noticed the error and instructed
    Turner & Stone to increase the loss to reflect the thirty-five
    per cent distribution. Trial Tr. at 383. 5 Turner & Stone
    charged Palmlund $8,000 for preparing the 2001 tax returns
    for the Partnership, for 32, LLC, for 7612, LLC and for
    Palmlund individually. In previous years, it had charged
    Palmlund $1,500 for tax return preparation services,
    notwithstanding the fact that Palmlund’s tax returns before
    2001—given his wealth and investments—were complex.
    Part of Garza’s $72,000 or $95,000 fee was for the
    preparation of a tax opinion letter regarding Palmlund’s Son
    of BOSS tax shelter. Dated December 30, 2001, the letter
    consisted of four pages specific to Palmlund’s shelter and
    over eighty pages about general topics like partnership law,
    disguised-sale provisions and the treatment of foreign
    currency options. Garza’s letter concluded that Turner &
    Stone’s tax treatment of Palmlund’s Son of BOSS
    4
    As the Tax Court explained, “Son of BOSS transactions
    usually yield capital losses, but Palmlund offset ordinary income
    because he attached the high basis to Canadian dollars, . . . [taking]
    the position that certain foreign-currency transactions may produce
    an ordinary loss.” 106 Ltd., 
    136 T.C. 70
    n.2. Palmlund’s
    reported loss from the Canadian currency was partially offset by
    other gains and his total reported loss from his interest in Palmlund
    Ltd. was $1,026,322.
    5
    The Partnership distributed the remaining sixty-five per cent of
    the Canadian currency in October 2002 but no loss was ever
    claimed for it.
    6
    transactions—including the overstated basis in the Canadian
    currency—would “more likely than not” withstand IRS
    scrutiny.
    In May 2004, the IRS first communicated with Palmlund
    by sending him a copy of IRS announcement 2004-46 which
    outlined the IRS’s proposed terms of settlement for any
    taxpayer utilizing a Son of BOSS tax shelter. After meeting
    with Garza and with Turner & Stone to discuss his response,
    Palmlund decided to amend his individual tax return. He
    removed the $1,030,491 loss attributable to the distribution of
    the Canadian currency and paid an additional $394,329 in
    taxes. Palmlund did not amend the Partnership’s tax return.
    After initiating an administrative proceeding in February
    2005 regarding the Partnership’s asserted basis in the
    distributed Canadian currency, the IRS issued a final
    partnership administrative adjustment (FPAA) to the
    Partnership on May 5, 2005. The FPAA adjusted the
    Partnership’s basis from $2,974,000 to $0 and, pursuant to 26
    U.S.C. § 6662, 6 imposed a forty per cent accuracy-related
    penalty to the underpayment of taxes resulting from the
    Partnership’s overstatement of its basis in the Canadian
    currency. The Partnership timely petitioned the Tax Court for
    a readjustment under 26 U.S.C. § 6226.7 Subsequently, the
    Partnership conceded the tax adjustment and the Tax Court
    granted partial summary judgment to the IRS Commissioner
    on that issue. The Tax Court also granted partial summary
    judgment to the Commissioner on the issue of whether the
    6
    See infra p.9.
    7
    32, LLC was the original petitioner because it was the tax
    matters partner for the Partnership. It dissolved in February 2002
    and the Tax Court appointed Palmlund as the Partnership’s tax
    matters partner pursuant to Rule 250 of its Rules of Practice and
    Procedure.
    7
    Partnership had committed a gross valuation misstatement
    meriting the forty per cent accuracy-related penalty. 8 The
    only remaining issue before the Tax Court for trial was
    whether the Partnership had a reasonable cause defense under
    26 U.S.C. § 6664(c)(1) to defeat the penalty.
    After a trial, the Tax Court concluded that the Partnership
    had not established the reasonable cause defense because
    Palmlund, acting on behalf of the Partnership, did not
    establish his “actual good-faith reliance on Garza’s, and
    Turner & Stone’s, professional advice” in overstating the
    Partnership’s basis in the Canadian currency. 106 Ltd., 
    136 T.C. 78
    . According to the Tax Court, Palmlund “could not
    rely on their advice in good faith” because Garza and Turner
    & Stone were promoters of the shelter, Garza’s opinion letter
    contained obvious inaccuracies, Palmlund should have known
    the transaction was improper given his business experience
    and Palmlund entered into the transaction with the intent to
    lose money. 
    Id. at 81. The
    Partnership timely appeals. 9
    8
    A “gross valuation misstatement” occurs if “the price for any
    property . . . claimed on any . . . return in connection with any
    transaction . . . is [400] percent or more . . . of the amount
    determined . . . to be the correct amount of such price.” 26 U.S.C.
    § 6662(e)(1)(B)(i) and (h)(2)(A)(ii)(I). The Tax Court concluded—
    and the Partnership does not appeal—that the Partnership
    committed a gross valuation misstatement because the Partnership’s
    reported basis of $2,974,000 in the distributed Canadian currency
    was more than 400 per cent of the Partnership’s actual basis of
    $1,400.
    9
    Palmlund first appealed to the Fifth Circuit but, because the
    Partnership no longer existed—and therefore had no principal place
    of business—at the time Palmlund filed the petition for
    readjustment, the Fifth Circuit granted the Commissioner’s motion
    to transfer the appeal here pursuant to 26 U.S.C. § 7482(b). See 26
    U.S.C. § 7482(b)(1) (“in the case of a petition under section 6226,”
    8
    II.
    As noted earlier, the only question before us is whether
    the Tax Court erred in deciding that the Partnership, acting
    through Palmlund, failed to establish the reasonable cause
    defense for using a $2,974,000 basis in the distributed
    Canadian currency. 10 “Whether a taxpayer had reasonable
    cause [under section 6664(c)(1)] is a question of fact decided
    on a case-by-case basis” and “[w]e review this determination
    and the findings underlying it for clear error.” Stobie Creek
    Invs. LLC v. United States, 
    608 F.3d 1366
    , 1381 (Fed. Cir.
    2010); see Am. Boat Co. v. United States, 
    583 F.3d 471
    , 483
    (7th Cir. 2009) (“Whether reasonable cause existed—and the
    findings underlying this determination—are questions of fact,
    which we review for clear error.”); see also United States v.
    Boyle, 
    469 U.S. 241
    , 249 n.8 (1985) (“Whether the elements
    that constitute ‘reasonable cause’ are present in a given
    situation is a question of fact, but what elements must be
    if partnership has no principal place of business “as of the time the
    petition . . . was filed with the Tax Court,” Tax Court “decision[]
    may be reviewed by the Court of Appeals for the District of
    Columbia”).
    10
    The Tax Court’s jurisdiction to decide the accuracy-related
    penalty issue arose from the fact that the penalty “relates to an
    adjustment to a partnership item”—i.e., the Canadian currency.
    Stobie Creek 
    Invs., 608 F.3d at 1380
    (internal quotation marks
    omitted); see also 26 U.S.C. § 6226(f) (tax court “shall have
    jurisdiction to determine all partnership items of the partnership for
    the partnership taxable year to which the notice of [FPAA]
    relates . . . and the applicability of any penalty . . . which relates to
    an adjustment to a partnership item”); 
    id. § 6221 (“[T]he
    tax
    treatment of any partnership item (and the applicability of any
    penalty, addition to tax, or additional amount which relates to an
    adjustment to a partnership item) shall be determined at the
    partnership level.”).
    9
    present to constitute ‘reasonable cause’ is a question of law.”
    (emphases in original)).
    A.
    Section 6662 of the Internal Revenue Code, 26 U.S.C.
    § 6662, imposes a mandatory accuracy-related penalty for
    certain tax underpayments. See 26 U.S.C. § 6662(a) (“If this
    section applies to any portion of an underpayment of tax
    required to be shown on a return, there shall be added to the
    tax an amount equal to 20 percent of the portion of the
    underpayment to which this section applies.”). “If the
    underpayment        is    due    to    a   ‘gross    valuation
    misstatement,’ . . . the taxpayer must pay a penalty of forty
    percent of the delinquent tax.” Am. Boat 
    Co., 583 F.3d at 480
    (citing 26 U.S.C. § 6662(a), (h)). 11 Section 6664 provides a
    defense to an accuracy-related penalty “if the taxpayer proves
    it had (1) reasonable cause for the underpayment and (2) acted
    in good faith.” Stobie Creek 
    Invs., 608 F.3d at 1381
    ; see 26
    U.S.C. § 6664(c)(1) (“No penalty shall be imposed under
    section 6662 . . . with respect to any portion of an
    underpayment if it is shown that there was a reasonable cause
    for such portion and that the taxpayer acted in good faith with
    11
    Section 6662 provides for other accuracy-related penalties but
    the parties stipulated before the Tax Court that the forty per cent
    accuracy-related penalty for a gross valuation misstatement was the
    only penalty at issue. “Although partnerships do not pay federal
    income taxes,” “[t]he partners are . . . responsible for reporting their
    distributive shares of the partnership’s income or loss on their
    individual federal income tax returns.” Petaluma FX 
    Partners, 591 F.3d at 650
    . Thus, the forty per cent accuracy-related penalty is
    applicable to the understatement of taxes on Palmlund’s individual
    income tax return attributable to the Partnership’s gross-valuation
    misstatement. As discussed supra note 8, a gross valuation
    misstatement is “a misstatement of the correct adjusted basis by 400
    percent or more.” Am. Boat. 
    Co., 583 F.3d at 480
    .
    10
    respect to such portion.”). “The determination of whether a
    taxpayer acted with reasonable cause and in good faith is
    made on a case-by-case basis, taking into account all pertinent
    facts and circumstances.” 26 C.F.R. § 1.6664-4(b).
    One way in which a taxpayer can establish the reasonable
    cause defense “is to show reliance on the advice of a
    competent and independent professional advisor.” Am. Boat
    
    Co., 583 F.3d at 481
    ; see also 
    Boyle, 469 U.S. at 251
    (“When
    an accountant or attorney advises a taxpayer on a matter of
    tax law, such as whether a liability exists, it is reasonable for
    the taxpayer to rely on that advice.” (emphasis in original)).
    By itself, however, “[r]eliance on . . . the advice of a
    professional tax advisor . . . does not necessarily demonstrate
    reasonable cause and good faith.” 26 C.F.R. § 1.6664-
    4(b)(1). Rather, reliance on professional advice can establish
    the defense only “if, under all the circumstances, such
    reliance was reasonable and the taxpayer acted in good
    faith.” 
    Id. To be reasonable,
    reliance on professional tax advice
    must meet several requirements. First, “[t]he advice must be
    based upon all pertinent facts and circumstances and the law
    as it relates to those facts and circumstances.” 26 C.F.R.
    § 1.6664-4(c)(1)(i). Second, “[t]he advice must not be based
    on unreasonable factual or legal assumptions,” including “a
    representation or assumption which the taxpayer knows, or
    has reason to know, is unlikely to be true.” 
    Id. § 1.6664- 4(c)(1)(ii).
    Third, “the taxpayer’s reliance on the advice must
    itself be objectively reasonable,” Stobie Creek 
    Invs., 608 F.3d at 1381
    (emphasis in original), requiring, inter alia, that the
    advice not come “from parties who actively promote or
    implement the transactions in question,” 
    id. at 1382; see
    also
    Mortensen v. Comm’r, 
    440 F.3d 375
    , 387 (6th Cir. 2006) (“In
    order for reliance on professional tax advice to be
    reasonable, . . . the advice must generally be from a
    11
    competent and independent advisor unburdened with a
    conflict of interest and not from promoters of the
    investment.”). “[T]he taxpayer’s education, sophistication
    and business experience [are] relevant in determining whether
    the taxpayer’s reliance on tax advice was reasonable and
    made in good faith.” 26 C.F.R. § 1.6664-4(c)(1). And,
    contrary to the Partnership’s suggestion, see Appellant’s Br.
    19 (“Determining whether one’s reliance on an individual is
    in good faith is purely subjective.”), the inquiry is objective,
    “focus[ing] . . . on what [the taxpayer] knew or should have
    known at the time he obtained the [advice],” Am. Boat 
    Co., 583 F.3d at 485
    .
    B.
    We find no error—let alone clear error—in the Tax
    Court’s determination that the Partnership failed to establish
    the reasonable cause defense because Palmlund unreasonably
    relied on both Garza’s and Turner & Stone’s advice. To
    begin with, the role of Garza “in promoting, implementing,
    and receiving fees from the [Son of BOSS] strategy” is more
    than sufficient to support the Tax Court’s finding that he was
    a promoter and therefore possessed an inherent conflict of
    interest. Stobie Creek 
    Invs., 608 F.3d at 1382
    ; see also New
    Phoenix Sunrise Corp. v. Comm’r, 408 F. App’x 908, 917
    (6th Cir. 2010) (advisor’s “involvement in the preparation of
    many of the documents needed to implement the [Son of
    BOSS] transaction[] supports [Tax Court] finding” that
    advisor was “ ‘promoting’ the tax shelter”); Tigers Eye
    Trading, LLC v. Comm’r, 
    97 T.C.M. 1622
    , 
    2009 WL 1475159
    at *19 (May 27, 2009) (“[A]n adviser who
    participated in structuring the transaction or is otherwise
    related to, has an interest in, or profits from the transaction . . .
    is considered a ‘promoter’ of the transaction . . . .”). Garza
    brought the tax shelter opportunity to Palmlund’s attention
    and he “coordinated the deal from start to finish.” 106 Ltd.,
    12
    
    136 T.C. 80
    . Moreover, Garza made money out of the
    transaction. Palmlund paid Garza a fee of either $72,000 or
    $95,000 to execute the Son of BOSS transaction and Garza
    “wouldn’t have been compensated at all if Palmlund decided
    not to go through with [the shelter].” 
    Id. at 81. In
    addition,
    Garza “recommended” the transaction to “[m]ore than a
    dozen” other clients and used a “[v]ery similar” opinion letter
    for each client. Trial Tr. at 299.
    With respect to Turner & Stone, it too implemented and
    profited from the transaction. Its tax return preparation
    services were essential to the execution of the transactions
    and it had worked with Garza previously to implement Son of
    BOSS tax shelters for other clients. Moreover, the $8,000 it
    charged Palmlund for tax return preparation far exceeded its
    normal charge of $1,500 and included research costs related
    to Son of BOSS transactions that it conducted for a different
    client. As the Tax Court found, the inflated fee represented
    Turner & Stone’s “cut for helping to make the deal happen.”
    106 Ltd., 
    136 T.C. 81
    .
    Furthermore, Palmlund knew or should have known that
    Garza and Turner & Stone were promoters of the tax shelter.
    Garza “recommended” the Son of BOSS shelter to Palmlund,
    Trial Tr. at 299, and told Palmlund that he would “do
    everything” to implement it, 
    id. at 55; see
    Stobie Creek 
    Invs., 608 F.3d at 1382
    (unreasonable to rely on professional
    advisor if his “role as a promoter of the [Son of BOSS]
    strategy was evident”). One of Palmlund’s accountants also
    testified that the Son of BOSS shelter “was referred—or
    brought to [Palmlund’s] attention by Joe Garza.” Trial Tr. at
    314. Garza’s fee statement included Garza’s work in the
    “Formation of LLC Disregarded Entity[,] Formation of
    Limited Partnership[,] Negotiations with investment bank and
    review of transactions[,] Legal Opinion Letter [and] Tax
    return preparation and review.” Statement for Services
    13
    Rendered (Nov. 7, 2001) (Fee Statement). Palmlund also
    testified that he went through with the deal despite knowing
    that “[Garza] was not a licensed broker.” Trial Tr. at 120.
    Finally, Palmlund knew Garza was performing similar
    transactions for other clients. Palmlund testified that he knew
    Garza had “done this type of [transaction]” in the past, 
    id. at 50, and
    that Garza told him he was “developing a financial
    organization” to handle similar transactions, 
    id. at 120. Palmlund
    also knew or should have known that Turner &
    Stone was working with Garza to structure and implement the
    tax shelter. See Van Scoten v. Comm’r, 
    439 F.3d 1243
    , 1253
    (10th Cir. 2006) (unreasonable for taxpayer to rely on
    professional advisor “directly affiliated with the promoter”).
    Garza encouraged Palmlund to seek out Turner & Stone’s
    advice regarding the Son of BOSS shelter because Garza
    “[had] been doing transactions with them,” Trial Tr. at 50,
    and Garza informed Palmlund that “the accountants on [the
    transaction] would be Turner [&] Stone,” 
    id. at 55. Garza’s
    fee statement “include[d] Mr. John Stone’s tax accounting
    fees for [the Partnership].” Fee Statement. John Stone is the
    Stone of Turner & Stone. Garza also made clear to Palmlund
    that he and Turner & Stone intended to handle all of the
    necessary arrangements to execute the Son of BOSS shelter.
    According to Palmlund’s testimony, Garza told him that he
    “[would not] have to do anything” and that “[w]e will do
    everything. We will take care of the taxes. We will take care
    of setting up the accounts.” Trial Tr. at 55.
    Notwithstanding Palmlund’s earlier bona fide dealings
    with Garza and with Turner & Stone, we believe the Tax
    Court record establishes that Palmlund unreasonably relied on
    Garza and on Turner & Stone in this instance because he
    knew or should have known that his “advisors” were not
    providing independent advice and that they were in fact
    promoters of the tax shelter who possessed an inherent
    14
    conflict of interest. See Stobie Creek 
    Invs., 608 F.3d at 1383
    (if taxpayer knew advisors were promoting Son of BOSS
    shelter, taxpayer’s reliance was “not objectively
    reasonable . . . , regardless of [his] longstanding relationship
    with . . . or the reputations of [the advisors]”). Accordingly,
    the Tax Court did not err in concluding that the Partnership
    failed to establish the reasonable cause defense to the forty
    per cent accuracy-related penalty. See 
    id. at 1382-83; see
    also
    Am. Boat 
    Co., 583 F.3d at 482
    (“[C]ourts have upheld the
    imposition of penalties on taxpayers who relied on advisors
    involved in implementing [Son of BOSS tax shelters] . . . .”).
    In addition, the Tax Court did not clearly err in
    concluding that Palmlund unreasonably relied on Garza’s
    opinion letter as a matter of law because it was “based upon []
    representation[s] or assumption[s] which [Palmlund] kn[ew],
    or ha[d] reason to know, [were] unlikely to be true.” 26
    C.F.R. § 1.6664-4(c)(1)(ii). For instance, the letter relied on
    an “inaccurate representation . . . as to [Palmlund’s] purposes
    for entering into [the] transaction.” 
    Id. The letter stated
    that
    Palmlund “believed there was reasonable opportunity to earn
    a reasonable pre-tax profit from the [Son of BOSS]
    transaction,” Opinion Letter at 3 (Dec. 30, 2001), but
    Palmlund’s banker, Charles Denson, testified that Palmlund
    said he entered the Son of BOSS shelter as a “tax
    strategy . . . and the intent was to lose money,” Trial Tr. at
    416. The Tax Court specifically credited Denson’s testimony
    and a trial court’s “credibility determinations are entitled to
    the greatest deference.” United States v. Erazo, 
    628 F.3d 608
    ,
    611 (D.C. Cir. 2011) (internal quotation marks omitted); see
    also Pasternak v. Comm’r, 
    990 F.2d 893
    , 900 (6th Cir. 1993)
    (“Th[e] court must give great deference to the Tax Court’s
    determination pertaining to the credibility of witnesses.”
    (citing Anderson v. Bessemer City, 
    470 U.S. 564
    , 575
    (1985))).
    15
    The letter contained other inaccuracies as well. It stated
    that Palmlund received the distributed Canadian currency “as
    [a] Partnership liquidating distribution[],” Op. Letter at 3, but
    the December 2001 distribution did not liquidate Palmlund’s
    partnership interest because it distributed only thirty-five per
    cent of the Canadian currency. Importantly, Palmlund
    demonstrated his awareness of this fact by directing Turner &
    Stone to amend his individual tax return to reflect the
    distribution of thirty-five per cent of the Canadian currency.
    The opinion letter also claimed that the Partnership “do[es]
    not even now know if [it] will be called upon to satisfy [its]
    obligations under the [digital options].” 
    Id. at 28. By
    the
    time Garza authored the letter, however, Palmlund had
    terminated the options, eliminating the Partnership’s
    obligations under them. Accordingly, we see no basis upon
    which to conclude that the district court erred in concluding
    that Garza’s opinion letter failed to comply with the
    requirements of 26 C.F.R. § 1.6664-4(c)(1) and that the
    Partnership’s reliance thereon was unreasonable. See 26
    C.F.R. § 1.6664-4(c)(1) (“In no event will a taxpayer be
    considered to have reasonably relied in good faith on advice
    (including an opinion) unless the requirements of this
    paragraph (c)(1) are satisfied.”); Long-Term Capital
    Holdings, LP v. United States, 150 F. App’x 40, 42 (2d Cir.
    2005) (no clear error in concluding taxpayer did not
    reasonably rely on professional advice for reasonable cause
    defense when “record provides ample support” for finding
    that advice “unreasonably rel[ied] on statements that the
    taxpayer knew were unlikely to be true”).
    Finally, even if Palmlund did not know about Garza’s
    and Turner & Stone’s conflicts of interest, we find no error in
    the Tax Court’s determination that Palmlund’s motive for
    entering into the tax shelter and his business experience
    “demonstrate[] [his] lack of good-faith reliance.” 106 Ltd.,
    
    136 T.C. 81
    . As noted earlier, the Tax Court credited
    16
    Denson’s testimony that Palmlund’s “intent was to lose
    money” on the tax shelter, 
    id. at 73, and
    found that Palmlund
    participated in the shelter because of the “alluring tax
    benefit,” 
    id. at 70. Although
    Palmlund testified that he made
    investments only “to make money” and that he decided to
    enter into the Son of BOSS transaction based on a tip from a
    business partner’s daughter, Trial Tr. at 54, 44, the Tax Court
    “was not required to credit [Palmlund’s] self-serving
    explanation of his motives.” United States v. Bolla, 
    346 F.3d 1148
    , 1153-54 (D.C. Cir. 2003). Moreover, the improbable
    tax advantages offered by the tax shelter—a $1 million dollar
    loss from a transaction that earned Palmlund $10,000 (less
    Garza’s fees)—should have alerted a person with Palmlund’s
    business experience and sophistication to the shelter’s
    illegitimacy. See Stobie Creek 
    Invs., 608 F.3d at 1383
    (no
    reasonable reliance if taxpayer had “sufficient knowledge and
    experience to know when a taxplanning strategy was likely
    ‘too good to be true’ ” and selected strategy “because of a
    desire to avoid taxes that would otherwise be owed”); see also
    
    Pasternak, 990 F.2d at 903
    (when tax deduction exceeded
    amount invested by fifty per cent, “a reasonably prudent
    person would have asked a tax advisor if th[e] windfall were
    not ‘too good to be true’ ”).
    For the foregoing reasons, we affirm the judgment of the
    Tax Court.
    So ordered.