26 CAR § 270-108 – Credit determination, maximum, and carryforward

(a) Final determination of the amount of eligible cost and available tax credits will be determined by the Commissioner of Revenues.
(b) The amount of the credit that may be used by a taxpayer for a taxable year may not exceed the amount of state, individual, or corporate income tax otherwise due.
(c) Any unused credit may be carried over for a maximum of three (3) consecutive tax years following the taxable year for which the credit was certified.