26 U.S.C. § 6719
Verified against govinfo.gov as of June 20, 2026View official text on govinfo.gov ↗
- (a)Every person who is required to register or reregister under section 4101 and fails to do so shall pay a penalty in addition to the tax (if any).
- (b)The amount of the penalty under subsection (a) shall be—
- (c)No penalty shall be imposed under this section with respect to any failure if it is shown that such failure is due to reasonable cause.