(1) All taxes imposed under the provisions of this article shall be paid on the fifteenth day of the fourth month following the close of the taxable year; but the executive director may grant any taxpayer, upon application therefor, an extension of time for the payment of the tax, or any portion thereof, with interest to be charged on the unpaid balance at a rate imposed under section 39-21-110.5 for the period of such extension. No extension of time shall be authorized for payment of amounts of tax due upon deficiency assessments, or on amended or delinquent returns.
(2) Payment of the estimated income tax or any installment thereof shall be considered payment on account of the income taxes imposed by this article.
Source: L. 64: R&RE, p. 795, � 1. C.R.S. 1963: � 138-1-73. L. 81: (1) amended, p. 1865, � 8, effective June 8.
39-22-610. Relief for members of the armed forces of the United States - when. (1) The period of time commencing with the declaration of war by congress and ending twelve months after the termination of any such declared war during which an individual is a member of the armed forces of the United States, shall be disregarded in determining, under the provisions of this article, any income tax liability, including any interest, penalty, or additional tax, of any such individual, whether any act required of or permitted by such individual or the state of Colorado, in respect to the income tax liability, was performed within the time prescribed therefor; but this section shall not revive any right or liability previously barred by law.
(2) The period of time during which an individual is serving in the armed forces of the United States or in support thereof in an area designated by presidential order as a combat zone, and a period of one hundred eighty days after such service, shall be disregarded in determining under the provisions of this article any income tax liability, including any interest, penalty, or additional tax, of any such individual, whether any act required of or permitted by such individual or the state of Colorado, in respect to such income tax liability, was performed within the time prescribed therefor.
Source: L. 64: R&RE, p. 795, � 1. C.R.S. 1963: � 138-1-74. L. 71: p. 1256, � 2.