Colorado Revised Statutes Title 39. Taxation § 39-22-622. Refunds

(b)(I) Refunds for income tax returns filed by January 31 of any given year shall be made within fourteen calendar days of the date of filing.

(II) Refunds for income tax returns filed after January 31 but prior to or on the last day of February of any given year shall be made within twenty-one calendar days of the date of filing.

(III) Refunds for income tax returns filed after the last day of February but prior to or on March 31 of any given year shall be made within twenty-eight calendar days of the date of filing.

(IV) Refunds for income tax returns filed after March 31 of any given year shall be made within forty-five calendar days of the date of filing.

(I) To any return that is being audited;

(II) To any return that may take longer than normal to process due to the mathematical or clerical errors contained in said return;

(III) To unforeseen delays caused by the failure of processing equipment;

(IV) Because of a tax credit allowed in section 39-22-531;

(V) Because the taxpayer claimed an enterprise zone tax credit pursuant to article 30 of this title 39 and the department of revenue is awaiting confirmation from the Colorado office of economic development that the taxpayer is eligible for such credit; or

(VI) To any return where there is a suspicion of identity theft or other refund-related fraud.