In JM Assets, LP v. Commissioner, 165 T.C. ___ No. 1 (7/2/25) (reviewed opinion with no dissents), TC here dkt #46 and GS here [to come], the Court invalidated a regulation that, if valid, would have extended the period for a final partnership adjustment under the CPAR/BBA beyond the statutory period of 330 days. The FPA is the final action imposing the imputed tax at the partnership level under CPAR/BBA.
(1) three years after the date on which the partnership return was filed, I.R.C. § 6235(a)(1)(A); (2) three years after the due date of the return, I.R.C. § 6235(a)(1)(B); (3) three years after the date on which the partnership filed an administrative adjustment request under section 6227, I.R.C. § 6235(a)(1)(C); (4) in the case of a proposed partnership adjustment under section 6231(a)(2), the date that is 330 days (plus any extension under 6225(c)(7)) after the date of such a notice, I.R.C. § 6235(a)(3); or (5) in the case of a modification request made pursuant to section 6225(c), 270 days (plus any extension under 6225(c)(7)) after the date on which everything required to be submitted to the Secretary pursuant to such section is so submitted, I.R.C. § 6235(a)(2).
JM Assets involved (5) relating to modification requests.
I don’t think there is anything surprising in that interpretation of the statutory text under Loper Bright’s de novo interpretation standard. I should note that the IRS argued unsuccessfully for delegated interpretive authority for the regulation of the type Loper Bright approved.
I think the more interesting part of JM Assets is its conclusion that the FPA period was not extended by § 6235(c)(2) which provides that for an extension for the FPA if there is a substantial omission of income as defined by § 6501(e)(1)(A). That part of opinion deals with the general tax extension in the latter section. I discuss the general tax extension in my Federal Tax Procedure (Practitioner Edition pp. 198-199; Student Edition pp. 138-139).
