Title 26 › Subtitle F — Procedure and Administration › CHAPTER 68 — ADDITIONS TO THE TAX, ADDITIONAL AMOUNTS, AND ASSESSABLE PENALTIES › Subchapter B — Assessable Penalties › PART I — GENERAL PROVISIONS › § 6672
People who must collect taxes and who intentionally fail to collect them, fail to report and pay them, or try to evade them must pay a penalty equal to the full tax they failed to handle. That penalty is in addition to other penalties, but the penalty under section 6653 or part II of subchapter A of chapter 68 cannot be used for the same offense. The IRS must tell the person in writing (to the address the IRS uses under section 6212(b)) or in person that the penalty will be charged. That notice must come at least 60 days before any formal demand for the penalty. If the notice is sent before the usual assessment deadline under section 6501, the IRS has until the later of 90 days after the notice or, if there is a timely protest, 30 days after the IRS makes a final administrative decision. The notice rules do not apply if the IRS finds collection is in jeopardy. If, within 30 days after the IRS makes a demand, a person pays at least the minimum amount needed to start a court case, files a refund claim for that payment, and posts a bond set by IRS rules equal to 1½ times the unpaid part of the penalty, the IRS cannot levy or sue to collect the rest until the court case is finally resolved. If the refund claim is denied, the person must start a court action within 30 days or lose that protection. The time limit for collection is paused while collection is blocked. If more than one person is liable, anyone who paid more than their fair share can sue the others separately to recover the excess, but not in the same case where the United States is trying to collect. Unpaid volunteer board members of a tax-exempt organization are not liable if they serve only honorarily, do not take part in daily or financial operations, and did not actually know about the failure—unless applying that rule would leave no one responsible.
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Internal Revenue Code, Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 6672
Title 26, Internal Revenue Code
Last Updated
Sep 22, 2026
Release point: 119-110