Colorado Revised Statutes Title 39. Taxation § 39-22-321. Definitions

(1) “Income attributable to the state” means items of income, loss, deduction, or credit of the S corporation apportioned or allocated to this state pursuant to section 39-22-303.5, 39-22-303.6, or 39-22-303.7.

(2) “Income not attributable to the state” means all items of income, loss, deduction, or credit of the S corporation other than income attributable to the state.

(3) “Post-termination transition period” means that period defined in section 1377(b)(1) of the internal revenue code.  1

(4) “Pro rata share” means the portion of any item attributable to an S corporation shareholder for a taxable period determined in the manner provided in, and subject to any election made under, section 1377(a) or 1362(e),  2 as the case may be, of the internal revenue code.

(5) “Taxable period” means any taxable year or portion of a taxable year during which a corporation is an S corporation.