26 U.S. Code § 6658 - Coordination with title 11
Subsection (a) shall not apply to any liability for an addition to the tax which arises from the failure to pay or deposit a tax withheld or collected from others and required to be paid to the United States.
A prior section 6658, act Aug. 16, 1954, ch. 736, 68A Stat. 826, authorized inclusion as part of the tax a 25 percent penalty in cases of violations or attempted violations of section 6851 of this title, prior to repeal by Pub. L. 96–167, § 6(a), Dec. 29, 1979, 93 Stat. 1276.