This consolidated appeal requires us to determine whether an overstatement of *349 basis constitutes an omission from gross income for purposes of the Tax Code, 26 U.S.C. § 6501(e)(1)(A), which extends the tax assessment period from three to six years. Because we conclude that an overstatement of basis is not an omission from gross income for purpose of the relevant statute, the Commissioner was limited to three years to pursue unpaid tax claims against the taxpayers. We further find that the recently promulgated Treasury Regulations do not apply to the taxpayers. We thus affirm the tax court’s judgment in favor of the taxpayer, and reverse the district court’s judgment in favor of the government.
I.
Appellee United States of America and Petitioner Commissioner of the Internal Revenue Service (IRS) (collectively “the government”) assert that Appellants Daniel Burks, M.I.T.A., and John E. Lynch (collectively “taxpayers” or “the taxpayers”) utilized the “Son of BOSS”
1
tax shelter to create artificial tax losses in order to offset capital gains. In a Son of BOSS scheme, partners engage in various long and short sale transactions and transfer the resulting obligations to the partnership thereby improperly inflating the basis in the partnership assets.
See e.g., Coltec Indus., Inc. v. United States,
The Tax Equity and Fiscal Responsibility Act of 1982 “established ‘a single unified procedure for determining the tax treatment of all partnership items at the partnership level, rather than separately at the partner level.’ ”
Kornman & Assocs., Inc. v. United States,
In the present cases, the IRS issued Final Partnership Administrative Adjustments (FPPAs) adjusting the partnership tax returns filed by the taxpayers on the grounds that the challenged transactions lacked economic substance.
2
See Klamath Strategic Inv. Fund ex rel. St. Croix Ventures v. United States,
In
United States v. Burks
(09-11061), the district court held that this court’s decision in
Phinney v. Chambers,
In
Commissioner v. M.I.T.A.
(09-60827), the tax court relied on the Supreme Court’s decision in
Colony, Inc. v. Commissioner,
II.
On appeal, the taxpayers argue that an overstatement of basis does not constitute an omission from gross income as established by the Supreme Court in Colony v. Commissioner and thus the three year limitations period applies. The government argues that this court’s decision in Phinney v. Chambers established that the six year limitations period applies to an overstatement of basis for purposes of § 6501(e)(1)(A). The government contends that Colony applies only in the context of a trade or business engaged in the sale of goods or services. The government also argues that application of Colony to the revised statute renders § 6501(e)(1)(A) subsections (i) and (ii) superfluous. 3 Finally, the government asserts that recently enacted Treasury Regulations purporting to define “omission from gross income” as encompassing an overstatement of basis are determinative and apply retroactively to the present matters. We consider each in turn.
A.
This court reviews de novo a court’s determination on a motion for summary judgment.
See Staff IT, Inc. v. United States,
B.
The taxpayers argue that the Supreme Court’s decision in Colony v. Commissioner, holding that an overstatement of basis was not an omission from gross income such that the extended limitations period applied, is controlling in the present matters.
In
Colony,
the Court held that an overstatement of basis did not constitute an omission from gross income for purposes of § 275(c) of the 1939 Tax Code, the predecessor to § 6501(e)(A)(1).
The taxpayers argued that the term “omits” was commonly defined as “to leave out or unmentioned; not to insert, include, or name” and thus by the plain language of the statute only the complete omission of an item of income triggered application of the extended limitations period.
Id.
at 32-33,
The court found “in that history persuasive evidence that Congress was addressing itself to the specific situation where a taxpayer actually omitted some income receipt or accrual in his computation of gross income, and not more generally to errors in that computation arising from other causes.” Id. The Court thus found that the extended limitations period did not apply where gross receipts had been reported, despite gross income having been under-reported. Id. The Court concluded:
We think that in enacting § 275(c) Congress manifested no broader purpose than to give the Commissioner an additional two years to investigate tax returns in cases where, because of a taxpayer’s omission to report some taxable item, the Commissioner is at a special disadvantage in detecting errors. In such instances the return on its face provides no clue to the existence of the omitted item. On the other hand, when, as here, the understatement of a tax arises from an error in reporting an item disclosed on the face of the return *352 the Commissioner is at no such disadvantage. And this would seem to be so whether the error be one affecting “gross income” or one, such as overstated deductions, affecting other parts of the return.
Id.
at 36,
The government asserts that this court’s decision in
Phinney v. Chambers
limited
Colony’s
holding requiring an actual omission of income pursuant to the plain meaning of the term “omits,” because the revised statute § 6501(e)(1)(A)(ii) established adequate disclosure as the critical factor when determining whether there was, an omission from gross income.
See Grapevine Imps., Ltd. v. United States,
In
Phinney,
this court was tasked with determining whether misreporting the nature of an item on a tax return constituted an omission from gross income for the purposes of § 6501(e)(1)(A).
The question before the court was whether the taxpayer omitted from gross income an “amount properly includible therein which is in excess of 25 percent of the amount of gross income stated in the return.” Id. at 683 (citation omitted). Focusing on the item reported, Phinney found that the nature of the item was misrepresented such that there was no adequate disclosure of the transaction. Id. at 684. “The basic difficulty with the taxpayer’s position here is that [the] taxpayer simply didn’t give the government a chance to make a ‘challenge’ to the taxpayer’s contention, because the taxpayer made no such contention on the return it filed.” Id. The taxpayer’s return reported an installment sale “under a different heading and under an incorrect designation.” Id.
Citing to Colony, the court held that there was “[n]o better illustration” for the need for adequate disclosure as required in § 6501(e)(1)(A)(ii). Id. at 685.
[T]he enactment of [§ 6501] subsection (ii) ... makes it apparent that the six year statute is intended to apply where there is either a complete omission of an item of income of the requisite amount or misstating the nature of an item of income which places the commissioner at a special disadvantage in detecting errors.
Id. (internal marks omitted). The court concluded that “if an item of income is shown on the face of the return or an attached statement that is not shown in a manner sufficient to enable the [Secretary by reasonable inspection of the return to detect the errors then it is the omission of ‘an amount’ properly includable in the return.” Id.
We do not read
Phinney
as limiting
Colony’s
holding.
5
In
Colony,
the
*353
court noted that its conclusion was “in harmony with the unambiguous language of § 6501(e)(1)(A).”
The facts in
Phinney
demonstrate that the taxpayer’s return did not merely misstate an amount but rather misrepresented the very nature of the item reported such that the IRS could not have reasonably known what was actually being reported, an almost direct omission.
Phinney,
Phinney
involved a distinct fact pattern not presented in this appeal. The taxpayers in the present matters did not misstate the nature of an item such that the IRS was at a disadvantage in detecting the error because it could not reasonably know what was actually being reported. Rather, the nature of the item — the basis — was included in the tax return, albeit in an incorrect amount. This circumstance provides the IRS with sufficient notice to inquire into the correctness and validity of the item being reported.
See Colony,
Our holding is consistent with other courts’ analysis regarding the applicability of
Colony
in the context of Son of BOSS tax shelters. These courts have generally found that an overstatement of basis does not constitute an omission from gross income for purposes of § 6501(e)(1)(A) such that the extended limitations period applied, because of the similarity of the lan
*354
guage and meaning of § 275(c) and § 6501(e)(1)(A).
See, e.g., Home Concrete & Supply, LLC v. United States (Home Concrete II),
The government does not argue that these cases are distinguishable from the present matters, but rather asserts that they were wrongly decided. We disagree and find that Colony’s holding with respect to the definition of “omits gross income” remains applicable in light of the revisions to the Code. As such, an overstatement of basis that adequately appraises the Commissioner of the nature of the *355 item being reported does not constitute an “omission from gross income” for purposes of § 6501(e)(1)(A). The taxpayers in the present matters disclosed the nature of the items on their tax returns sufficient to notify the Commissioner of the item being reported. We join the Fourth, Ninth, and Federal Circuits by finding that Colony’s holding with respect to the definition of “omits from gross income” remains applicable in light of the revisions to the Code.
C.
The government alternatively argues that Colony does not control the present matters because application of Colony to § 6501(e)(1)(A) subsections (i) and (ii) would render these subsections superfluous. The government argues that Colony’s finding that the ambiguous language found in § 275(c) was “in harmony” with the unambiguous language found in § 6501(e)(1)(A) was necessarily tied to these subsections.
Section 6501(e)(1)(A) was first enacted as § 275(c) of the Revenue Act of 1934, 48 Stat. 745.
See Badaracco v. Comm’r,
Subsection (i) provides: “In the case of a trade or business, the term ‘gross income’ means the total of the amounts received or accrued from the sale of goods or services (if such amounts are required to be shown on the return) prior to diminution by the cost of such sales or services.” 26 U.S.C. § 6501(e)(1)(A)(i).
Some courts have held that subsection (i) limits application of
Colony
to cases involving a trade or business.
See, e.g., Beard,
Other courts have found
Colony
applicable to all taxpayers in light of the revised statute.
See, e.g., Home Concrete (II),
The government argues that Congress would not have included the phrase “in the case of a trade of business” and “amounts received or accrued from the sale of goods or services” if it had not intended for the definition of gross income for purposes of § 6501(e)(1)(A)(i) to apply outside the context of trade or business engaged in the sale of goods or services. The government further asserts that taxpayers’ construction of the term “omits” without reference to the term “gross income” focuses only on one component of the calculation, thus excluding consideration of one of the two figures that result in gain (the calculation of basis) and therefore renders the gross receipts provision meaningless.
Bakersfield
offered a comprehensive analysis when disagreeing with the government’s argument.
Because § 6501(e)(1)(A)© changes the definition of “gross income” for taxpayers in a trade or business, it potentially affects both the numerator (the omission from gross income) and the denominator (the total gross income stated in the return). Colony’s holding, however, affects only the numerator, by defining what constitutes an omission from gross income.
When there is no dispute about the amount of gross income omitted, the denominator, the total amount of gross income stated in the return, determines whether the omission meets the 25% threshold that triggers the six-year limitations period. For taxpayers not in a *357 trade or business, the denominator is the amount of gross income (gross receipts minus basis); for taxpayers in a trade or business, the denominator is the total amount of money received without any reduction for basis (gross receipts).
Id.
at 776-77. Thus, when the amount omitted (the numerator) is not in dispute, applicability of the extended limitations period turns on whether the court was obliged to apply subsection (i)’s definition of “gross income” for a trade or business when determining the amount of gross income stated in the return (the denominator).
Id.
at 777 (citing
Hoffman v. Comm’r,
The court further noted that Congress did not alter the language in § 6501(e)(1)(A). Id. at 775. “Although the IRS would have us infer that Congress’s addition of subparagraph (i) casts the language in the body of § 6501(e)(1)(A) in a different light, we can equally infer that Congress in 1954 intended to clarify, rather than rewrite, the existing law.” Id. at 776. The court concluded:
[Congress] could have expressly added a definition of “omits” if it wanted to overrule the cases that concluded, as the Supreme Court later did in Colony, that “omits” does not include an overstatement of basis. Instead, Congress allowed the preexisting general definition of “omits” to carry forward into the successor provision, and additionally provided for a special definition of “gross income” in the case of a “trade or business.”
Id.
“[T]he fact remains that
Colony
represents an interpretation of the very same language that is now found in § 6501(e)(1)(A), and in the years since
Colony,
Congress has not indicated that the Court’s interpretation of the language of § 275(c) should not apply to § 6501(e)(1)(A).”
Salman Ranch (II),
Salman Ranch (II)
held that, by its terms, the language of subsection (i) states how gross income is calculated for purposes of § 6501(e)(1)(A) when the income arises from a trade or business engaged in the sale of goods or services.
Salman Ranch further held that the legislative history of § 6501(e)(1)(A) supported a finding that subsection (i) was not rendered superfluous by application of Colony. Id. at 1375-76. “Congress added subparagraph (i) to resolve a conflict between the IRS and taxpayers about how to calculate gross income in the case of a trade or business.” Id. (citing Hearings Before the Senate Comm. on Finance on H.R. 8800 (part 2), 83rd Cong. 984 (1954) (letter of Harry N. Wyatt)) (discussing “disagreement evidenced by the case law between the [IRS] and some of the courts as to whether ... [i]n the case of a business, the term ‘gross income’ should be construed as gross receipts and gross *358 sales, or as net receipts and net sales”). Salman Ranch held that, “[i]n light of this conflict, we believe that Congress enacted subparagraph (i) ... to assist the IRS in its calculation of whether any omitted gross income exceeded 25% of the gross income stated in the return.” Id. at 1376.
We agree with the analysis presented in Bakersfield and Salman Ranch (II) and hold that a fair reading of § 6501(e)(1)(A)(i) supports our finding that subsection (i) was intended to define gross income for the sale of goods or services by a trade or business as gross receipts from those sales. Under the Code, gross income of a trade or business is usually calculated by subtracting the cost of goods sold from the gross receipts of the sale. 26 U.S.C. § 61(a). Subsection (i) provides an alternative to this customary definition in the context of sales of goods or services by a trade or business by defining “gross income” as gross receipts rather than gross receipts less the cost of goods sold. See § 6501(e)(1)(A)(i). Thus, pursuant to § 6501(e)(1)(A), in order for an omission from gross income to arise in the context of sales of goods or services by a trade or business, the return must omit a receipt. As such, subsection (i) is not rendered superfluous by application of Colony outside of the context of a trade or business.
D.
The government further argues that in enacting § 6501(e)(1)(A)(ii), Congress intended that an item could be omitted from gross income without it having been entirely omitted from the face of the return.
See Phinney,
In determining the amount omitted from gross income, there shall not be taken into account any amount which is omitted from gross income stated in the return if such amount is disclosed in the return, or in a statement attached to the return, in a manner adequate to apprise the Secretary of the nature and amount of such item.
26 U.S.C. § 6501(e)(1)(A)(ii). Subsection (ii) thus provides a “safe harbor” for omissions of amounts which, though not included in the gross income as stated in the tax return, are adequately disclosed such that the IRS has sufficient notice.
[F]rom the plain language of (ii), it is possible for an amount to be “omitted from gross income” and disclosed on the face of the return. Subsection (ii) simply makes it possible for a taxpayer to be protected if the taxpayer discloses the amount in a way sufficient to alert the IRS to the substance and size of the item omitted. If a taxpayer omits an amount from gross income yet includes the item which causes the amount to be omitted on the taxpayer’s return in such a way that the IRS is apprised of the “nature and amount” of the item, then that item is not considered “omitted” for purposes of § 6501(e)(1)(A). However, where a taxpayer includes an item on a return in such a way that the IRS is not apprised of the “nature and amount” of the item, then that item has been “omitted” from gross income for purposes of § 6501(e)(1)(A), even though it is included on the face of the return.
Home Concrete (I),
III.
Finally, the government argues that recently promulgated Treasury Regulations clarify that the definition of “omits from gross income” as found in § 6501(e)(1)(A) includes an overstatement of basis, thus the regulations are determinative.
On September 28, 2009, the Treasury issued Temporary Regulations §§ 301.6501(e)-1T(b) and 301.6229(c)(2)-1T(b), pursuant to 26 U.S.C. § 7805(a). Section 7805(a) of the Tax Code authorizes the Treasury Department to promulgate “all needful rules and regulations for the enforcement of this title.” 26 U.S.C. § 7805(a). The Temporary Regulations were simultaneously issued as proposed regulations and were issued as final regulations effective December 14, 2010 (the Regulations). See Treas. Reg. §§ 301.6501(e)-l, 301.6229(c)(2)-l. 8 The Regulations define “omission from gross income” as including “an understated amount of gross income resulting from an overstatement ... of basis for purposes of sections 6501(e)(1)(A) and 6229(c)(2).” Id. at §§ 301.6501(e)-1(a)(iii) and 301.6229(c)(2)-1(a)(iii). The Regulations provide:
In the case of amounts received or accrued that relate to the disposition of property, and except as provided in paragraph (a)(1)(h) of this section, gross income means the excess of the amount realized from the disposition of the property over the unrecovered cost or other basis of the property. Consequently, except as provided in paragraph (a)(1)(h) of this section, an understated amount of gross income resulting from an overstatement of unrecovered cost or other basis constitutes an omission from gross income for purposes of section 6501(e)(1)(A)(i).
Treas. Reg. § 301.6501(e)-1(a)(iii). The Regulations limit Colony’s applicability to circumstances where the taxpayer is a trade or business engaged in the sale of goods or services. Id. at § 301.6501(e)-1(a)(ii), (iii); T.D. 9511, 75 Fed.Reg. 78897, 78897 (Dec. 17, 2010). The Regulations also expressly disagree with the recent decisions in Bakersfield and Salman Ranch (II) applying Colony to the revised statute. See 75 Fed.Reg. 78897.
The government asserts that this court must afford the Regulations force of law deference and because the Regulations purport to apply retroactively they control the outcome of the present matters.
See Chevron, U.S.A., Inc. v. Nat’l Res. Def. Council, Inc.,
Because we hold that § 6501(e)(1)(A) is unambiguous and its meaning is controlled by the Supreme Court’s decision in
Colony,
we need not determine the level of deference owed to the Regulations. The Regulations attempt to define “omits from gross income” for purposes of the revised statute. However, the government cites to no authority refuting prior case law that has held § 6501(e)(1)(A) to be unambiguous with respect to the definition of “omits.”
See Colony,
Moreover, the Regulations state that they “apply to taxable years with respect to which the period for assessing tax was open on or after September 24, 2009.” T.D. 9511, 75 Fed.Reg. 78897, 78897 (Dec. 17, 2010). The government argues that this provision applies to taxable years for which the limitations period did not expire with respect to the tax year at issue before September 24, 2009. The Regulations state that “ ‘the applicable period’ is not the ‘general’ three-year limitation period ... [because] the three-year period does not ‘close’ a taxable year if a longer period applies.”
Id.
at 78898. The government thus makes a circular argument that the Regulations apply to the taxpayers because the statute of limitations remains open under the language of the newly promulgated Regulations.
See Home Concrete (II),
Because the Regulations are an unreasonable interpretation of settled law, we find that they are not applicable to the *361 taxpayers in the present matters. As such, we need not determine whether the Regulations may apply retroactively.
IV.
For the foregoing reasons, we affirm the tax court’s judgment in favor of the taxpayers in matter 09-60827, Commissioner v. M.I.T.A. We reverse the district court’s grant of summary judgment in favor of the government in matter 09-11061, United States v. Burks, and remand for further proceedings consistent with this opinion.
Notes
. “ ‘BOSS' is an acronym for 'Bond and Option Sales Strategy.' ”
Kornman & Assocs., Inc. v. United States,
. The issue before this court is a purely legal one — whether an overstatement of basis constitutes an omission from gross income for purposes of § 6501(e)(1)(A). The merits of the underlying transactions are not before this court on appeal. The district court and tax court have not yet determined that the taxpayers' reporting positions are unsupportable.
. 26 U.S.C. § 6501(e)(1)(A)(i), (ii) has since been amended such that subsections (i) and (ii) now appear at § 6501(e)(1)(B)(i), (ii). There have been no amendments to the text of the subsections and thus the amendments do not affect our analysis. All references to subsections (i) and (ii) are as to the text of the statute prior to the recent amendments in effect at the time of this appeal.
. 26 U.S.C. 275 stated in relevant part:
(a) General rule. The amount of income taxes imposed by this chapter shall be assessed within three years after the return was filed, and no proceeding in court without assessment for the collection of such taxes shall be begun after the expiration of such period.
(c) Omission from gross income. If the taxpayer omits from gross income an amount properly includible therein which is in excess of 25 per centum of the amount of gross income stated in the return, the tax may be assessed, or a proceeding in court for the collection of such tax may be begun without assessment, at any time within 5 years after the return was filed.
Colony, Inc. v. Comm’r,
. The Seventh Circuit in
Beard
incorrectly read our decision in
Phinney
as limiting
Colo
*353
ny’s holding.
See Beard v. Comm'r,
. At the time of the appeal the revised statute read:
(e) Substantial omission of items
(1) Income taxes. — In the case of any tax imposed by subtitle A
(A) General rule. If the taxpayer omits from gross income an amount properly includible therein and which is in excess of 25 percent of the amount of gross income stated in the return, the tax may be assessed, or a proceeding in court for the collection of such a tax may be begun without assessment, at any time within 6 years after the return was filed. For the purposes of this subparagraph
(i) In the case of a trade or business the term “gross income” means the total of the amounts received or accrued from the sale of goods or services (if such amounts are required to be shown on the return) prior to diminution by the cost of such sales or services; and
(ii) In determining the amount omitted from gross income, there shall not be taken into account any amount which is omitted from gross income stated in the return if such amount is disclosed in the return, or in a statement attached to the return, in a manner adequate to apprise the Secretary of the nature and amount of such item.
26 U.S.C. § 6501(e).
.
See, e.g., Badaracco v. Comm’r,
. Although the Temporary Regulations were in effect at the time the government and taxpayers sought appellate review, because any difference between the Temporary and final Regulations are not material to our review, this opinion cites to the final version of the Regulations.
. Although we hold that § 6501(e)(1)(A) is unambiguous and its meaning is controlled by the Supreme Court's decision in
Colony,
we note that even if the statute was ambiguous
*361
and
Colony
was inapplicable, it is unclear whether the Regulations would be entitled to
Chevron
deference under
Mayo Foundation for Medical Research v. United
States, - U.S. -,
Moreover,
Mayo
emphasized that the regulations at issue had been promulgated following notice and comment procedures, “a consideration identified ... as a significant sign that a rule merits
Chevron
deference.”
