26 U.S. Code § 7427 - Tax return preparers
In any proceeding involving the issue of whether or not a tax return preparer has willfully attempted in any manner to understate the liability for tax (within the meaning of section 6694(b)), the burden of proof in respect to such issue shall be upon the Secretary.
A prior section 7427 was renumbered 7437 of this title.
2007—Pub. L. 110–28 substituted “Tax return preparers” for “Income tax return preparers” in section catchline and “a tax return preparer” for “an income tax return preparer” in text.