26 U.S. Code § 6710 - Failure to disclose that contributions are nondeductible
If there is a failure to meet the requirement of section 6113 with respect to a fundraising solicitation by (or on behalf of) an organization to which section 6113 applies, such organization shall pay a penalty of $1,000 for each day on which such a failure occurred. The maximum penalty imposed under this subsection on failures by any organization during any calendar year shall not exceed $10,000.
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.
LII has no control over and does not endorse any external Internet site that contains links to or references LII.