Special rules

With respect to any taxable year, the amount which would (but for this subsection) be allowed as a credit to the taxpayer under subsection (a) shall be reduced (but not below zero) by the aggregate amount paid on behalf of such taxpayer under section 7527 for months beginning in such taxable year.

Amounts taken into account under subsection (a) shall not be taken into account in determining any deduction allowed under section 162( l ) or 213.

Amounts distributed from an Archer MSA (as defined in section 220(d)) or from a health savings account (as defined in section 223(d)) shall not be taken into account under subsection (a).

No credit shall be allowed under this section to any individual with respect to whom a deduction under section 151 is allowable to another taxpayer for a taxable year beginning in the calendar year in which such individual’s taxable year begins.

The spouse of the taxpayer shall not be treated as a qualifying family member for purposes of subsection (a), if—

(A) the taxpayer is married at the close of the taxable year,

(B) the taxpayer and the taxpayer’s spouse are both eligible individuals during the taxable year, and

(C) the taxpayer files a separate return for the taxable year.

Rules similar to the rules of paragraphs (3) and (4) of section 21(e) shall apply for purposes of this section.

For purposes of this section, rules similar to the rules of section 213(d)(6) shall apply with respect to any contract for qualified health insurance under which amounts are payable for coverage of an individual other than the taxpayer and qualifying family members.

For purposes of this section—

(A) Payments by Secretary Payments made by the Secretary on behalf of any individual under section 7527 (relating to advance payment of credit for health insurance costs of eligible individuals) shall be treated as having been made by the taxpayer on the first day of the month for which such payment was made.

(B) Payments by taxpayer Payments made by the taxpayer for eligible coverage months shall be treated as having been made by the taxpayer on the first day of the month for which such payment was made.

(A) Medicare eligibility In the case of any month which would be an eligible coverage month with respect to an eligible individual but for subsection (f)(2)(A), such month shall be treated as an eligible coverage month with respect to such eligible individual solely for purposes of determining the amount of the credit under this section with respect to any qualifying family members of such individual (and any advance payment of such credit under section 7527). This subparagraph shall only apply with respect to the first 24 months after such eligible individual is first entitled to the benefits described in subsection (f)(2)(A).

(B) Divorce In the case of the finalization of a divorce between an eligible individual and such individual’s spouse, such spouse shall be treated as an eligible individual for purposes of this section and section 7527 for a period of 24 months beginning with the date of such finalization, except that the only qualifying family members who may be taken into account with respect to such spouse are those individuals who were qualifying family members immediately before such finalization.

(C) Death In the case of the death of an eligible individual— (i) any spouse of such individual (determined at the time of such death) shall be treated as an eligible individual for purposes of this section and section 7527 for a period of 24 months beginning with the date of such death, except that the only qualifying family members who may be taken into account with respect to such spouse are those individuals who were qualifying family members immediately before such death, and (ii) any individual who was a qualifying family member of the decedent immediately before such death (or, in the case of an individual to whom paragraph (4) applies, the taxpayer to whom the deduction under section 151 is allowable) shall be treated as an eligible individual for purposes of this section and section 7527 for a period of 24 months beginning with the date of such death, except that in determining the amount of such credit only such qualifying family member may be taken into account.

(A) In general This section shall not apply to any taxpayer for any eligible coverage month unless such taxpayer elects the application of this section for such month.

(B) Timing and applicability of election Except as the Secretary may provide— (i) an election to have this section apply for any eligible coverage month in a taxable year shall be made not later than the due date (including extensions) for the return of tax for the taxable year; and (ii) any election for this section to apply for an eligible coverage month shall apply for all subsequent eligible coverage months in the taxable year and, once made, shall be irrevocable with respect to such months.

(A) In general An eligible coverage month to which the election under paragraph (11) applies shall not be treated as a coverage month (as defined in section 36B(c)(2)) for purposes of section 36B with respect to the taxpayer.

(B) Coordination with advance payments of premium tax credit In the case of a taxpayer who makes the election under paragraph (11) with respect to any eligible coverage month in a taxable year or on behalf of whom any advance payment is made under section 7527 with respect to any month in such taxable year— (i) the tax imposed by this chapter for the taxable year shall be increased by the excess, if any, of— (I) the sum of any advance payments made on behalf of the taxpayer under section 1412 of the Patient Protection and Affordable Care Act and section 7527 for months during such taxable year, over (II) the sum of the credits allowed under this section (determined without regard to paragraph (1)) and section 36B (determined without regard to subsection (f)(1) thereof) for such taxable year; and (ii) section 36B(f)(2) shall not apply with respect to such taxpayer for such taxable year, except that if such taxpayer received any advance payments under section 7527 for any month in such taxable year and is later allowed a credit under section 36B for such taxable year, then the amount determined under clause (i) shall be substituted for the amount determined under section 36B(f)(2).

The Secretary may prescribe such regulations and other guidance as may be necessary or appropriate to carry out this section, section 6050T, and section 7527.