SECTION 16. PENALTY FOR
Internal Revenue Bulletin 2001-3 · 2026-10-03 edition · updated 2026-10-04 · United States
FAILURE TO TIMELY FILE A RETURN
Section 6651(a)(1) provides that for each month (or part thereof) a return is not filed when required (determined with regard to any extensions of time for filing), there is a penalty of 5 percent of the unpaid tax not to exceed 25 percent, absent reasonable cause. A taxpayer does not establish reasonable cause simply by engaging a competent Electronic Filer to file the taxpayer’s return. However, if the Electronic Filer has reasonable cause under § 6651(a) for failing to timely file the taxpayer’s return, the taxpayer will also have reasonable cause for that failure, and the failure-to-file penalty will be abated.
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