U.S. Code / Title 26 — Internal Revenue Code / Subtitle F—Procedure and Administration / Chapter 63—AssessmentTitle 26SubchapterSubchapter B—Deficiency Procedures in the Case of Income, Estate, Gift, and Certain Excise TaxesContents§ 6211. Definition of a deficiency§ 6212. Notice of deficiency§ 6213. Restrictions applicable to deficiencies; petition to Tax Court§ 6214. Determinations by Tax Court§ 6215. Assessment of deficiency found by Tax Court§ 6216. Cross references