FIFO rule.

(l) FIFO rule. If the credit available for a taxable year is not allowed in full because of the tax liability limitation, special rules determine the order in which credits are applied. Under the first-in-first-out rule of section 46(a)(1) (FIFO), carryovers are applied against the tax liability limitation first. To the extent the tax liability limitation exceeds carryovers, credit earned, and carrybacks are then applied.


26 CFR § 1.46-1

Scoping language

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