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 › § 6703
For the penalties on promoting abusive tax shelters, aiding false tax documents, and filing frivolous returns, the IRS — not you — has the burden of proving the penalty applies. The usual deficiency procedures, which let you go to Tax Court before paying, do not apply to these penalties. Instead, for the shelter-promotion and aiding penalties, you can pay at least 15 percent of the penalty within 30 days of the IRS's notice and demand and file a refund claim. If you do, the IRS must pause collecting the rest while your case is resolved. If your claim is denied, you then have 30 days to sue in federal district court (or 30 days after 6 months pass with no answer); miss that window and collection can resume. The clock on the IRS's time limit to collect is paused while it is barred from collecting.
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Internal Revenue Code — Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 6703
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73