Title 26 › Subtitle F — Procedure and Administration › CHAPTER 63 — ASSESSMENT › Subchapter C — Treatment of Partnerships › PART III — PROCEDURE › § 6235
Sets time limits for when the IRS can change a partnership’s tax for a year. Normally the IRS must make any adjustment within the later of: three years after the latest of the partnership’s return filing date, the return due date, or the date the partnership filed an administrative adjustment request under section 6227; 270 days (plus any extra days the IRS agrees to under section 6225(c)(7)) after everything needed for a modification of an imputed underpayment under section 6225(c) is submitted; or 330 days (plus any extra days the IRS agrees to under section 6225(c)(7)) after a notice of a proposed partnership adjustment under section 6231(a)(2). The time can be extended if the IRS and the partnership agree before the deadline. There are exceptions: if the return was false with intent to evade tax, or if no return was filed, the IRS can adjust at any time. If the partnership left out certain income covered by section 6501(e)(1)(A) or (C), the limit is 6 years instead of 3. A return made by the IRS under section 6020(b) is not treated as the partnership’s return. Special reporting rules in section 6501(c)(8) and listed-transaction rules in section 6501(c)(10) can also set later deadlines.
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Internal Revenue Code, Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 6235
Title 26, Internal Revenue Code
Last Updated
Sep 22, 2026
Release point: 119-110