CONTINUING EDUCATION FOR TAX & FINANCIAL PROFESSIONALS

IRS Restarts Targeted Letter Rulings for Corporate Taxpayers Under Rev. Proc. 2026-21

Western CPE Staff

The IRS has released Rev. Proc. 2026-21, reinstating a letter ruling program at the Office of the Associate Chief Counsel (Corporate) that lets taxpayers ask for a ruling on a single, specific legal issue within a larger reorganization-type transaction — rather than a ruling that addresses every aspect of the transaction. The IRS refers to these as “significant issue rulings.” The change responds to informal feedback from taxpayers and practitioners about the time and scope involved in letter ruling requests, and is intended to use Service resources more efficiently and to increase the availability and timeliness of letter rulings.

What the Program Covers

The program applies to letter ruling requests solely under the jurisdiction of the Associate Chief Counsel (Corporate). The transactions in scope are those described in § 332, § 351, § 355, § 368, and § 1036.

Within those transactions, three configurations of rulings are now available.

The IRS may rule on part of an integrated transaction without addressing the whole.
It may rule on a particular legal issue under a Code or regulations section without addressing the section’s other issues — Rev. Proc. 2026-21 specifically references § 355(e), Reg. § 1.368-1(d), and Reg. § 1.368-2(k) as examples.
It may rule on tax consequences such as nonrecognition and basis when a significant issue is presented under a related Code section. The procedure does not cap the number of significant issues that can be addressed in a single ruling, and the IRS reserves the right to rule on any other issue tied to the transaction — including ruling adversely — when sound tax administration calls for it.

What Counts as a "Significant Issue"

The definition is the gating mechanism. Rev. Proc. 2026-21 defines a significant issue as a “germane and specific issue of law” that satisfies two tests:

Germane — “resolution of the issue is necessary to determine an element of the tax treatment of the transaction.”
Specific — “it is the narrowest articulation of that germane issue.”

A ruling on the issue cannot be a comfort ruling — that is, a ruling on a question already clearly answered by statute, regulations, court decisions, or published IRS guidance — and the conclusion cannot otherwise be essentially free from doubt. The Rev. Proc. also notes that a change of circumstances arising after a transaction ordinarily does not present a significant issue with respect to that transaction. Any ruling issued under the program will state that no opinion is expressed on issues or steps not specifically addressed.

What the Request Must Include

Requests filed under the modified section 6.03 of Rev. Proc. 2026-1 must contain seven elements:

“A narrative description of the transaction that puts the significant issue in context.”
“A statement identifying the issue.”
“An analysis of the relevant law that sets forth the most closely related authorities, explains why those authorities do not resolve the issue, and explains why the issue is significant.”
“Applicable information and representations from relevant revenue procedures with respect to the significant issue, plus any additional information the Office of Associate Chief Counsel (Corporate) requires based on facts and circumstances.”
“For a ruling on part of an integrated transaction, a representation about the relevant tax consequences of the integrated transaction — to the taxpayer’s best knowledge and belief — assuming the IRS issues the requested ruling.”
“The precise ruling or rulings being requested.”
“A statement that no rulings outside the jurisdiction of the Associate Chief Counsel (Corporate) are being requested.”

When the request involves a significant issue under a specific Code or regulations section, the taxpayer must also represent, to the best of the taxpayer’s knowledge and belief, that the transaction would otherwise satisfy the requirements of that section, or, as applicable, the relevant definitional section. Before preparing the request, taxpayers are directed to follow the pre-submission conference procedures in section 10.07(1) of Rev. Proc. 2026-1 to discuss whether the Office of the Associate Chief Counsel (Corporate) will issue a ruling under this program.

Effective Date

The significant issue ruling program applies to all letter ruling requests described in Rev. Proc. 2026-21 that are postmarked, or — if not mailed — received by the IRS, after May 5, 2026. Rev. Proc. 2026-21 modifies and amplifies Rev. Proc. 2026-1 (letter ruling procedures) and Rev. Proc. 2026-3 (areas in which rulings will not be issued), both published in Internal Revenue Bulletin 2026-1. The full Rev. Proc. 2026-21 is available on the IRS website.