Title 26 › Subtitle Subtitle F— Procedure and Administration › Chapter 63— ASSESSMENT › Subchapter B— Deficiency Procedures in the Case of Income, Estate, Gift, and Certain Excise Taxes › § 6215
If you take your case to the Tax Court, the deficiency the court finally decides you owe is assessed and must be paid once the IRS sends notice and demand. Any part of the deficiency the IRS claimed but the court rejected cannot be assessed or collected from you, by levy or by lawsuit. Other rules, listed by cross-reference, cover collection while a decision is on appeal, what happens if your petition is dismissed, decisions that the tax is barred by the time limit, penalties for filing just to delay, and extensions of time to pay.
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Internal Revenue Code — Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 6215
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73