MEMORANDUM

Taxpayer Robert Gosnell appeals from the district court’s grant of summary judgment to the government in his tax refund suit. He argues that adjustments the Internal Revenue Service (IRS) made to his tax liability were improperly assessed directly against him without a notice of deficiency, depriving him of the deficiency proceedings to which he claims he was entitled. The IRS’s direct assessment of taxes was unlawful, Gosnell maintains, because the assessment involved a “computational adjustment” requiring additional “partner level determinations,” making the statutory provision for direct assessment of computational adjustments inapplicable. 26 U.S.C. § 6230 (a)(1), (a)(2)(A)(i); see also Temp. Treas. Reg. § 301.6231 (a)(6)-1(a).

We disagree. Gosnell’s tax benefits from the sham Son-of-BOSS transaction flowed both from the foreign currency exchange and from the transfer in lieu of foreclosure of the resort. This complex transaction involved partnerships in a multi-tiered structure, and we acknowledge that the IRS conducted partnership-level proceedings only for Acquisitions, the top-tier partnership. Yet despite the transaction’s complexity, no “partner level determinations” were required to compute Gosnell’s proportionate share of the improper tax benefits because he stipulated to the precise amounts in question. See Napoliello v. C.I.R., 655 F.3d 1060, 1064 (9th Cir.2011). As a result, the IRS was able to directly assess Gosnell’s tax liability “with mathematical accuracy” by examining his returns, striking out tax benefits he conceded were related to the disallowed Sonof-BOSS transaction, and then re-computing his tax liability. See Olson v. United States, 172 F.3d 1311, 1317-18 (Fed.Cir. 1999). No “individualized factual determination” regarding the “correctness of the originally declared figures or any other factual matter such as the state of mind of the taxpayer upon filing” was required. Id. at 1318 ; see also Bush v. United States, 655 F.3d 1323, 1333-34 (Fed.Cir. 2011).

We also reject Gosnell’s argument that the IRS was required to issue a notice of deficiency before assessing penalties against him. The Taxpayer Relief Act of 1997, Pub.L. No. 105-34, amended 26 U.S.C. § 6221 to require the IRS to determine the applicability of penalties in partnership-level proceedings (rather than individual partner-level proceedings) when the penalties relate to the adjustment of partnership items. Once such proceedings have concluded, the IRS may directly assess an individual partner’s share of the penalties without following ordinary deficiency procedures. See 26 U.S.C. § 6230 (a)(2)(A)©. Here, the IRS conducted partnership-level proceedings for Acquisitions and found that penalties were applicable because the entire Son-of-BOSS transaction was a sham. Under the Treasury Department’s regulations, it was proper for the IRS to directly assess Gos-nell’s share of the penalties as a computational adjustment without following deficiency procedures, regardless of whether partner-level determinations were required to do so. See Treas. Reg. § 301.6231 (a)(6)-l(a)(3); Temp. Treas. Reg. § 301.6231 (a)(6)-l(a)(2).

AFFIRMED.

This disposition is not appropriate for publication and is not precedent except as provided by 9th Cir. R. 36-3.