Interpretive Methodology

This chapter considers the weight of each after the Supreme Court's 2024 decision ending Chevron deference, the use of legislative history in a provision this old, and the role of substance over form in a regime built on formal safe harbors.

11.1 Weight of Treasury regulations after the retreat from Chevron

The authority for the regulations. Congress has given Treasury general authority to "prescribe all needful rules and regulations for the enforcement" of the Internal Revenue Code.¹ Section 1031 itself refers to the Secretary only once, in the related-person exception for dispositions established "to the satisfaction of the Secretary" to lack a tax-avoidance purpose. The deferred exchange regulations of 1991 and the real property regulations of 2020 were issued under the general authority.²

Deference before 2024. Tax regulations had been evaluated under a framework drawn from National Muffler Dealers Ass'n v. United States, as the district court did in the case that reached the Supreme Court in 2011. In Mayo Foundation for Medical Education & Research v. United States, where the regulation under review, like the one in National Muffler, had been issued under the general authority of section 7805(a), the Court held: "We see no reason why our review of tax regulations should not be guided by agency expertise pursuant to Chevron to the same extent as our review of other regulations."³ Less formal interpretations were treated differently. Interpretations in opinion letters, policy statements, agency manuals, and enforcement guidelines "lack the force of law," did not receive Chevron deference, and were entitled to respect under Skidmore v. Swift & Co. only to the extent of their "power to persuade."⁴

Loper Bright. In Loper Bright Enterprises v. Raimondo the Court overruled Chevron: "Courts must exercise their independent judgment in deciding whether an agency has acted within its statutory authority, as the APA requires. Careful attention to the judgment of the Executive Branch may help inform that inquiry. And when a particular statute delegates authority to an agency consistent with constitutional limits, courts must respect the delegation, while ensuring that the agency acts within it. But courts need not and under the APA may not defer to an agency interpretation of the law simply because a statute is ambiguous."⁵ The Court described statutes that expressly delegate to an agency the authority to give meaning to a particular term, and statutes that empower an agency to "fill up the details" of a statutory scheme.⁶ It stated that it did "not call into question prior cases that relied on the Chevron framework," whose holdings that specific agency actions are lawful "are still subject to statutory stare decisis."⁷ And it quoted Skidmore's description of the factors that give an agency's judgment "power to persuade, if lacking power to control."⁸

What it means for the section 1031 regulations. Three consequences follow for a regime built on general-authority regulations. First, a court asked whether a section 1031 regulation correctly reads the statute now decides that question for itself, giving the regulation weight according to the care, reasoning, and consistency behind it, and not deferring merely because the statute is unclear. Second, some regulatory choices are less readings of statutory words than lines the statute leaves undrawn, such as the number of replacement properties a taxpayer may identify and the terms of the safe harbors. Whether section 7805(a), or section 1031(a)(3) read together with it, authorizes that kind of line-drawing is the question on which a challenge would turn. Third, decisions that upheld a regulation before 2024 keep their force as precedent. The application of these points to particular provisions is examined at 66.4.

11.2 Revenue rulings, revenue procedures, and their precedential status

Definitions and stated weight. The Service's procedural rules define a revenue ruling as "an official interpretation by the Service that has been published in the Internal Revenue Bulletin," and a revenue procedure as a statement of procedure that affects the rights or duties of taxpayers, or information that should be a matter of public knowledge.⁹ Revenue rulings "do not have the force and effect of Treasury Department Regulations," but they are published "to provide precedents to be used in the disposition of other cases, and may be cited and relied upon for that purpose." Taxpayers generally may rely on them for their own transactions without requesting a ruling. Because each ruling applies the law to a particular set of facts, however, taxpayers are cautioned against reaching the same conclusion unless the facts and circumstances are substantially the same.¹⁰

In court. The courts are not bound by revenue rulings; interpretations that lack the force of law receive respect only to the extent of their power to persuade (11.1).¹¹ The Service may be bound. In Rauenhorst v. Commissioner, the Tax Court agreed that revenue rulings do not bind the courts but stated that "we cannot agree that the Commissioner is not bound to follow his revenue rulings in Tax Court proceedings." The ruling at issue had stood for nearly 25 years without revocation, the taxpayers had relied on it, and the court treated it as a concession, refusing to permit the Commissioner "to argue against his revenue ruling."¹² The point matters for section 1031 because much of the planning framework rests on published guidance rather than regulations, including Rev. Rul. 2002-83 on related parties and Rev. Rul. 2004-86 on Delaware statutory trusts (Chapter 6).

Revenue procedures as safe harbors. In the section 1031 field, revenue procedures often supply safe harbors, and they say what they are not. Rev. Proc. 2000-37 disclaims any inference about parking arrangements outside its terms and acknowledges that parking can be accomplished outside the safe harbor. Rev. Proc. 2002-22 describes its conditions as guidelines for ruling requests that "are not intended to be substantive rules and are not to be used for audit purposes."¹³ A transaction that fails a revenue procedure's terms is therefore not, for that reason alone, outside section 1031. It loses the procedure's protection and must be justified under the statute, the regulations, and the cases, which is the setting of the non-safe-harbor parking disputes at 30.5 and 66.2.

As authority for penalty purposes. For the substantial authority standard used in applying the penalty for substantial understatements of income tax, the regulations list revenue rulings and revenue procedures among the authorities that count, along with the Code, regulations, court cases, committee reports, and the Joint Committee on Taxation's general explanations of tax legislation. Conclusions in treatises and legal periodicals are not authority.¹⁴

11.3 Private letter rulings, Actions on Decision, and non-acquiescence

Private letter rulings. A private letter ruling is issued to a particular taxpayer about a particular transaction. By statute, unless regulations provide otherwise, such a written determination "may not be used or cited as precedent."¹⁵ Letter rulings nonetheless show how the national office analyzes recurring structures, and for penalty purposes private letter rulings and technical advice memoranda issued after October 31, 1976, count as authority.¹⁶ The sound use of a letter ruling is as evidence of the Service's reasoning, never as a rule of decision.

Acquiescence and non-acquiescence. When the Service loses a case, it may announce whether it will follow the decision. The Commissioner's acquiescences and non-acquiescences in Tax Court decisions, other than memorandum opinions, are announced in the Internal Revenue Bulletin, and Actions on Decision issued after March 12, 1981, count as authority for penalty purposes.¹⁷ A non-acquiescence does not change the law that binds courts, but it tells taxpayers that the Service will continue to contest the issue. The Service's non-acquiescence in Estate of Bartell v. Commissioner, which upheld a parking arrangement outside Rev. Proc. 2000-37, is the leading example in section 1031 practice (30.6 and 66.2).¹⁸

When losing binds the government. Non-acquiescence has limits. In Starker, the government lost the son's refund suit in 1975, dismissed its appeal, and then litigated the same agreement against the father. The Ninth Circuit held the government collaterally estopped as to the nine parcels whose facts matched the first case, reasoning that the government had a full and fair opportunity to litigate the issue and had chosen not to pursue its appeal (5.2).¹⁹ A strategy of contesting an issue taxpayer by taxpayer runs into preclusion when the second taxpayer's transaction is the first one in every relevant respect.

11.4 Legislative history in a provision a century old

The Court's framework. The Supreme Court has described committee reports as "the authoritative source for finding the Legislature's intent," because they represent "the considered and collective understanding of those Congressmen involved in drafting and studying proposed legislation."²⁰ It has also warned that "the authoritative statement is the statutory text, not the legislative history," that extrinsic materials have a role "only to the extent they shed a reliable light on the enacting Legislature's understanding of otherwise ambiguous terms," and that legislative history "is itself often murky, ambiguous, and contradictory," so that its use can become an exercise in "looking over a crowd and picking out your friends."²¹ Both statements apply with particular force to section 1031, whose record spans a century.

The record, era by era. Section 1031's legislative history is uneven. The committee reports on the 1921 Act were not retrieved for this treatise, and the 1923 and 1924 reports explain the rule's narrowing mainly in terms of administrability (4.2 and 4.5). The 1984 reports are detailed and explain both the timing rules and the partnership exclusion (5.3 and 5.4). The 1989 House report was not available on GovInfo; it is quoted in this treatise through the cases and a revenue ruling, and some of its statements concerned a broader proposal that was not enacted (6.1). The 2017 record consists of one sentence of reasons and one footnote of intent (7.1). Arguments from purpose must reckon with that unevenness. The Ninth Circuit in Starker found the provision's underlying purpose "not entirely clear," and the Tax Court called the 1989 report's central example "highly elliptical."²²

When legislative history does work. Two uses have proved durable. The first is identifying the problem a provision addressed when the text leaves a gap. The courts applying section 1031(f)(4) to exchanges through intermediaries turned to the 1989 report's account of basis shifting and cashing out because the statute does not say what "the purposes of this subsection" are (6.2).²³ The second is preserving a baseline. The 2017 footnote stating that real property eligible before the Act would remain eligible became the organizing principle of the 2020 regulations: Treasury relied on it both to adopt the State and local law test and to exclude the interests that were never eligible (8.3).²⁴ In both uses the history filled a gap the text left, and in neither did it override clear statutory language.

Committee reports as authority. For penalty purposes, committee reports, joint explanatory statements of managers in conference reports, certain floor statements by a bill's managers, and the Joint Committee on Taxation's general explanations all count as authority.²⁵ The list says nothing about how much weight a court will give them, but it matters to practitioners, because a position supported by a committee report may avoid a penalty even where a court later reads the statute differently.

11.5 Substance over form and the limits of formalism in exchange planning

The general doctrine. The Supreme Court's tax cases state principles that pull in different directions. "The legal right of a taxpayer to decrease the amount of what otherwise would be his taxes, or altogether avoid them, by means which the law permits, cannot be doubted," but "the question for determination is whether what was done, apart from the tax motive, was the thing which the statute intended."²⁶ "The incidence of taxation depends upon the substance of a transaction," and the transaction "must be viewed as a whole."²⁷ Yet where Congress attaches different consequences to different forms, the form controls even when the distinction is "particularly shadowy and artificial": "Congress having determined that different tax consequences shall flow from different methods by which the shareholders of a closely held corporation may dispose of corporate property, we accept its mandate."²⁸ The judicial doctrines and the codified economic substance rule are examined in Chapter 42. This section concerns their limits in a statute that is itself built on a formal distinction.

Section 1031 is a formal line. The difference between an exchange and a sale followed by reinvestment is, as the Tax Court put it, "largely one of form."²⁹ The statute defers tax on the exchange and taxes the sale. The regulations make the form still more explicit. A sale followed by a purchase does not qualify even if every identification and receipt requirement is met, and a qualified intermediary "is not considered the agent of the taxpayer for purposes of section 1031(a)," with rights under state law to dismiss the intermediary disregarded.³⁰ In such a regime a general appeal to substance cannot erase the line, because the line is the statute. The Ninth Circuit made the point in Starker: "The metaphysical discussion in the briefs and authorities about whether the 'steps' of the transactions should be 'collapsed', and the truism that 'substance' should prevail over 'form', are not helpful to the resolution of this case. At best, these words describe results, not reasons."³¹

Where substance still decides. Substance analysis remains decisive at three points. First, it determines what actually happened: whether steps were mutually dependent parts of one plan, as in Redwing Carriers, or independent transactions with their own business reasons, as in Bell Lines (9.6).³² Second, it determines what the taxpayer received. In Carlton, taxpayers who took cash at closing had sold their ranch despite elaborate plans for an exchange (5.1).³³ Third, anti-avoidance provisions invite substance analysis by their terms. Section 1031(f)(4) reaches any exchange "structured to avoid the purposes" of the related-person rules, and the Service and the courts applied it to look through an intermediary to the related party that ended up with the cash (6.2).³⁴

The practical lesson. For exchange planning the lesson runs in both directions. Formal compliance with the regulations and safe harbors is necessary and usually sufficient, because the regime deliberately substitutes form for case-by-case inquiry. But form that does not match what the parties actually did, such as a taxpayer who in fact controls the funds despite an agreement saying otherwise, or a related party who ends up with the cash, invites the substance analysis that the safe harbors were designed to avoid (Chapters 29 and 42).