27 CFR § 26.103 - Computation of tax.

---
identifier: "/us/cfr/t27/s26.103"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "27 CFR § 26.103 - Computation of tax."
title_number: 27
title_name: "Alcohol, Tobacco Products and Firearms"
section_number: "26.103"
section_name: "Computation of tax."
chapter_name: "ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY"
subchapter_number: "A"
subchapter_name: "ALCOHOL"
part_number: "26"
part_name: "LIQUORS AND ARTICLES FROM PUERTO RICO AND THE VIRGIN ISLANDS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "19 U.S.C. 81c; 26 U.S.C. 5001, 5007, 5008, 5010, 5041, 5051, 5061, 5111-5114, 5121, 5122-5124, 5131-5132, 5207, 5232, 5271, 5275, 5301, 5314, 5555, 6001, 6038E, 6065, 6109, 6301, 6302, 6804, 7101, 7102, 7651, 7652, 7805; 27 U.S.C. 203, 205; 31 U.S.C. 9301, 9303, 9304, 9306."
regulatory_source: "20 FR 6077, Aug. 20, 1955, unless otherwise noted. Redesignated at 40 FR 16835, Apr. 15, 1975, and further redesignated by T.D. ATF-459, 66 FR 38550, July 25, 2001."
cfr_part: "26"
---


# 26.103 Computation of tax.

On receipt of permit to compute the tax on TTB Form 5100.21 the brewer shall compute and enter the amount of the tax on all copies of the form.

[T.D. 6695, 28 FR 12934, Dec. 5, 1963. Redesignated at 40 FR 16835, Apr. 15, 1975; T.D. TTB-146, 82 FR 1132, Jan. 4, 2017]