27 CFR § 479.51 - Fraudulent return.

---
identifier: "/us/cfr/t27/s479.51"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "27 CFR § 479.51 - Fraudulent return."
title_number: 27
title_name: "Alcohol, Tobacco Products and Firearms"
section_number: "479.51"
section_name: "Fraudulent return."
chapter_name: "BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE"
subchapter_number: "B"
subchapter_name: "FIREARMS AND AMMUNITION"
part_number: "479"
part_name: "MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "26 U.S.C. 5812; 26 U.S.C. 5822; 26 U.S.C. 7801; 26 U.S.C. 7805."
regulatory_source: "36 FR 14256, Aug. 3, 1971, unless otherwise noted. Redesignated at 40 FR 16835, Apr. 15, 1975, and further redesignated by T.D. ATF-487, 68 FR 3752, Jan. 24, 2003."
cfr_part: "479"
---


# 479.51 Fraudulent return.

If any part of any underpayment of tax required to be shown on a return is due to fraud, there shall be added to the tax an amount equal to 50 percent of the underpayment, but no delinquency penalty shall be assessed with respect to the same underpayment (section 6653, I.R.C.).