We have another post-BBA look at the Section 6235(a)(2) 270 day cutoff for issuance of an FPA after “any modification of an imputed underpayment” in Mammoth Cave Property, LLC, Mammoth Cave Manager, LLC, Partnership Representative, 166 T. C. 4, filed 3/9/26.

The mammoths base their SOL claim on the facts that the FPA was mailed to the wrong entity. The mammoths were changing addresses and partnership reps in the midst of COVID, and IRS was behind the curve on posting changes.

But ex-Ch J Kathleen (“TBS = The Big Shillelagh”) Kerrigan finds that the right designated individual, who was so designated by whatever entity was Partnership Representative at the time, got all the relevant documents timely., and petitioned timely.

“Petitioner received adequate or minimal notice resulting in a timely filed Petition. It has not shown that it was prejudiced by errors in the NOPPA because the audit and communications between respondent and petitioner continued without interruption. After the NOPPA naming the wrong partnership representative was sent to the W address, petitioner timely submitted Forms 8984 and 8980, requesting an extension of time to submit a request for modification and submitting a modification, respectively. These actions resulted in the FPA’s being issued timely, and petitioner’s timely filing a Petition with this Court.” 166 T. C. 4, at p.11. (Name omitted).

And even if the address was wrong, no hurt, no foul.

Ch J Urda, and JJ. Buch, Nega, Pugh, Ashford, Copeland, Jones, Toro, Greaves, Marshall, Weiler, Way, Landy, Arbeit, Guider, Jenkins, and Fung are all on board with the above.

For the Tax Court ‘s first look at the post-BBA régime, see my blogpost “A New Day – Redux,” 7/2/25.