(a) Requirement of return. Except as otherwise provided in this paragraph (a), a taxpayer who receives the benefit of advance payments of the premium tax credit (advance credit payments) under section 36B must file an income tax return for that taxable year on or before the due date for the return (including extensions of time for filing) and reconcile the advance credit payments. However, if advance credit payments are made for coverage of an individual who is not included in any taxpayer's family, as defined in § 1.36B-1(d), the taxpayer who attested to the Exchange to the intention to include such individual in the taxpayer's family as part of the advance credit payment eligibility determination for coverage of the individual must file a tax return and reconcile the advance credit payments.

(b) Applicability dates—(1) In general. Except as provided in paragraph (b)(2) of this section, paragraph (a) of this section applies for taxable years ending on or after December 31, 2020.

(2) Prior periods. Paragraph (a) of this section as contained in 26 CFR part 1 edition revised as of April 1, 2016, applies to taxable years ending after December 31, 2013, and beginning before January 1, 2017. Paragraph (a) of this section as contained in 26 CFR part 1 edition revised as of April 1, 2020, applies to taxable years beginning after December 31, 2016, and ending before December 31, 2020.