Limitations
(1) In general
(1)In general∀ 2#
The credit allowed under this section with respect to any taxpayer for any taxable year shall not exceed $1,200.
(2)Energy property∀ 2#
The credit allowed under this section by reason of subsection (a)(2) with respect to any taxpayer for any taxable year shall not exceed, with respect to any item of qualified energy property, $600.
(3)Windows∀ 2#
The credit allowed under this section by reason of subsection (a)(1) with respect to any taxpayer for any taxable year shall not exceed, in the aggregate with respect to all exterior windows and skylights, $600.
(4)Doors∀ 3#
The credit allowed under this section by reason of subsection (a)(1) with respect to any taxpayer for any taxable year shall not exceed—
(A) $250 in the case of any exterior door, and
(B) $500 in the aggregate with respect to all exterior doors.
(5)Heat pump and heat pump water heaters; biomass stoves and boilers∀ 2#
Notwithstanding paragraphs (1) and (2), the credit allowed under this section by reason of subsection (a)(2) with respect to any taxpayer for any taxable year shall not, in the aggregate, exceed $2,000 with respect to amounts paid or incurred for property described in clauses (i) and (ii) of subsection (d)(2)(A) and in subsection (d)(2)(B).
(6)Home energy audits∀ 2#
(A) Dollar limitation The amount of the credit allowed under this section by reason of subsection (a)(3) shall not exceed $150.
(B) Substantiation requirement No credit shall be allowed under this section by reason of subsection (a)(3) unless the taxpayer includes with the taxpayer’s return of tax such information or documentation as the Secretary may require.