26 CFR §28.6107-1 — -1 Tax return preparer must furnish copy of return or claim for refund to taxpayer and must retain a copy or record.

1. (a)In general. A person who is a signing tax return preparer of any return or claim for refund of any section 2801 tax must furnish a completed copy of the return or claim for refund to the taxpayer and retain a completed copy or record in the manner stated in § 1.6107-1 of this chapter.
2. (b)Applicability date. This section applies to returns and claims for refund filed on or after January 14, 2025.