Title 26 › Subtitle F — Procedure and Administration › CHAPTER 66 — LIMITATIONS › Subchapter C — Mitigation of Effect of Period of Limitations › § 6521
For the self-employment tax and the employee tax under section 3101: if money was wrongly treated as self-employment income or as wages, and fixing the mistake would mean assessing one tax and refunding or crediting the other, but a law or legal rule (other than section 7122) prevents correcting the other tax, then any assessment, credit, or refund you are allowed must be reduced by the amount that would have been required for the blocked tax if it could be fixed. The terms "self-employment income" and "wages" have the meanings given in section 1402(b).
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Internal Revenue Code, Source: USLM XML via OLRC
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26 U.S.C. § 6521
Title 26, Internal Revenue Code
Last Updated
Sep 22, 2026
Release point: 119-110