Title 26 › Subtitle F — Procedure and Administration › CHAPTER 63 — ASSESSMENT › Subchapter C — Treatment of Partnerships › PART II — PARTNERSHIP ADJUSTMENTS › § 6225
When the Secretary adjusts a partnership’s tax items for a past year, the partnership must pay any “imputed underpayment” in the adjustment year. If the adjustments do not create an imputed underpayment, the partnership must simply reflect the changes in the adjustment year. The imputed underpayment is worked out by adding up (netting) the partnership’s adjustments for the reviewed year and applying the highest tax rate that applied that year. If an adjustment just moves income from one partner to another and would lower the imputed underpayment, that part is ignored. Adjustments are first netted within each category of items that must be reported separately. Also, any adjustment that would lower the imputed underpayment but could be limited or disallowed under other tax rules generally won’t be counted unless the Secretary allows it. The Secretary must make rules so partners can reduce the imputed underpayment by either filing amended partner returns that take the partnership adjustments into account and paying any tax, or by paying the tax and providing required information and agreements instead of filing amended returns. For reallocations, all affected partners must meet these rules. Amounts allocated to tax-exempt partners are ignored when computing the imputed underpayment. A lower tax rate can apply to parts of the adjustment that belong to C corporations or to individuals for capital gains or qualified dividends, with rules to figure how much. Publicly traded partnerships get special treatment for certain passive loss decreases. The Secretary can create more procedures as needed. Anything filed to rely on these procedures must be sent within 270 days after the notice of proposed partnership adjustment is mailed, unless the Secretary agrees to more time. Any change to the imputed underpayment must be approved by the Secretary. Reviewed year means the partnership year the item relates to. Adjustment year means the partnership year when the court decision becomes final, an administrative adjustment request is made, or the final adjustment notice is mailed.
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Internal Revenue Code, Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 6225
Title 26, Internal Revenue Code
Last Updated
Sep 23, 2026
Release point: 119-110