- Section 6411: Tentative carryback and refund adjustments
- Section 6412: Floor stocks refunds
- Section 6413: Special rules applicable to certain employment taxes
- Section 6414: Income tax withheld
- Section 6415: Credits or refunds to persons who collected certain taxes
- Section 6416: Certain taxes on sales and services
[Section 6417: Repealed. Pub. L. 94–455, title XIX, § 1906(a)(25), Oct. 4, 1976, 90 Stat. 1827]
[Section 6418: Repealed. Pub. L. 101–508, title XI, § 11801(c)(22)(B)(i), Nov. 5, 1990, 104 Stat. 1388–528]
- Section 6419: Excise tax on wagering
- Section 6420: Gasoline used on farms
- Section 6421: Gasoline used for certain nonhighway purposes, used by local transit systems, or sold for certain exempt purposes
- Section 6422: Cross references
- Section 6423: Conditions to allowance in the case of alcohol and tobacco taxes
[Section 6424: Repealed. Pub. L. 97–424, title V, § 515(b)(5), Jan. 6, 1983, 96 Stat. 2181]
- Section 6425: Adjustment of overpayment of estimated income tax by corporation
- Section 6426: Credit for alcohol fuel, biodiesel, and alternative fuel mixtures
- Section 6427: Fuels not used for taxable purposes
[Section 6428: Repealed. Pub. L. 113–295, div. A, title II, § 221(a)(112)(A), Dec. 19, 2014, 128 Stat. 4054]
[Section 6429: Repealed. Pub. L. 113–295, div. A, title II, § 221(a)(113), Dec. 19, 2014, 128 Stat. 4054]
- Section 6430: Treatment of tax imposed at Leaking Underground Storage Tank Trust Fund financing rate
[Section 6431: Repealed. Pub. L. 115–97, title I, § 13404(b), Dec. 22, 2017, 131 Stat. 2138]
[Section 6432: Repealed. Pub. L. 115–141, div. U, title IV, § 401(d)(7)(A), Mar. 23, 2018, 132 Stat. 1212]