Conn. Gen. Stat. § 20-335
Any person who has successfully completed an examination for such person's initial license under this chapter shall pay to the Department of Consumer Protection a fee of one hundred fifty dollars for a contractor's license or a fee of one hundred twenty dollars for any other such license. Any such initial license fee shall be waived for persons who present a recommendation for review issued pursuant to section 31-22u. All such licenses shall expire annually. No person shall carry on or engage in the work or occupations subject to this chapter after the expiration of such person's license until such person has filed an application bearing the date of such person's registration card with the appropriate board. Such application shall be in writing, addressed to the secretary of the board from which such renewal is sought and signed by the person applying for such renewal. A licensee applying for renewal shall, at such times as the commissioner shall by regulation prescribe, furnish evidence satisfactory to the board that the licensee has completed any continuing professional education required under sections 20-330 to 20-341, inclusive, or any regulations adopted thereunder. The board may renew such license if the application for such renewal is received by the board no later than one month after the date of expiration of such license, upon payment to the department of a renewal fee of one hundred fifty dollars in the case of a contractor and of one hundred twenty dollars for any other such license. For any completed renewal application submitted pursuant to this section that requires a hearing or other action by the applicable examining board, such hearing or other action by the applicable examining board shall occur not later than thirty days after the date of submission for such completed renewal application. The department shall issue a receipt stating the fact of such payment, which receipt shall be a license to engage in such work or occupation. A licensee who has failed to renew such licensee's license for a period of over two years from the date of expiration of such license shall have it reinstated only upon complying with the requirements of section 20-333. All license fees and renewal fees paid to the department pursuant to this section shall be deposited in the General Fund.
Conn. Gen. Stat. § 20-335
(February, 1965, P.A. 493, S. 6; 1967, P.A. 789, S. 7; June, 1971, P.A. 8, S. 94; 1972, P.A. 223, S. 24; P.A. 73-86, S. 1, 2; P.A. 80-420, S. 2; P.A. 81-361, S. 26, 39; June Sp. Sess. P.A. 83-22, S. 1, 4; P.A. 84-340, S. 2; P.A. 89-251, S. 133, 203; P.A. 94-36, S. 18, 42; May 25 Sp. Sess. P.A. 94-1, S. 73, 130; P.A. 98-3, S. 31; P.A. 02-142, S. 2; June 30 Sp. Sess. P.A. 03-6, S. 146 (d); P.A. 04-169, S. 17; 04-189, S. 1; June Sp. Sess. P.A. 09-3, S. 246; Oct. Sp. Sess. P.A. 11-1, S. 76; P.A. 13-196, S. 17; P.A. 14-131, S. 6.)
See Sec. 21a-4(c) re fines for late license renewals. See Sec. 21a-10(b) re staggered schedule for license renewals.