advance payment
(4) Advance payment For purposes of this subsection— (A) In general The term “advance payment” means any payment— (i) the full inclusion of which in the gross income of the taxpayer for the taxable year of receipt is a permissible method of accounting under this section (determined without regard to this subsection), (ii) any portion of which is included in revenue by the taxpayer in a financial statement described in clause (i) or (ii) of subsection (b)(1)(A) for a subsequent taxable year, and (iii) which is for goods, services, or such other items as may be identified by the Secretary for purposes of this clause. (B) Exclusions Except as otherwise provided by the Secretary, such term shall not include— (i) rent, (ii) insurance premiums governed by subchapter L, (iii) payments with respect to financial instruments, (iv) payments with respect to warranty or guarantee contracts under which a third party is the primary obligor, (v) payments subject to section 871(a), 881, 1441, or 1442, (vi) payments in property to which section 83 applies, and (vii) any other payment identified by the Secretary for purposes of this subparagraph. (C) Receipt For purposes of this subsection, an item of gross income is received by the taxpayer if it is actually or constructively received, or if it is due and payable to the taxpayer. (D) Allocation of transaction price For purposes of this subsection, rules similar to subsection (b)(4) shall apply.