Title 26 › Subtitle Subtitle F— Procedure and Administration › Chapter 68— ADDITIONS TO THE TAX, ADDITIONAL AMOUNTS, AND ASSESSABLE PENALTIES › Subchapter B— Assessable Penalties › Part I— GENERAL PROVISIONS › § 6689
If your foreign taxes are redetermined and you fail to notify the IRS by the deadline set in regulations, a penalty is added to the resulting tax deficiency: 5 percent for the first month plus 5 percent more for each additional month or part of one, capped at 25 percent of the deficiency. No penalty applies if the failure was due to reasonable cause rather than willful neglect.
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Internal Revenue Code — Source: USLM XML via OLRC
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Reference
Citation
26 U.S.C. § 6689
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73