(1949 Rev., S. 1915; 1959, P.A. 69, S. 1; 1969, P.A. 388, S. 4; P.A. 76-322, S. 4, 27; P.A. 77-614, S. 139, 610; P.A. 78-280, S. 2, 4, 127; P.A. 80-307, S. 8, 31; P.A. 81-411, S. 16, 42; Nov. Sp. Sess. P.A. 81-4, S. 4, 32; P.A. 82-325, S. 3, 7; P.A. 85-501, S. 2; P.A. 88-314, S. 7, 54; P.A. 93-74, S. 9, 67; May Sp. Sess. P.A. 94-4, S. 34, 85; P.A. 95-160, S. 64, 69.)
History: 1959 act decreased interest rate from 0.6% to 0.5% per month; 1969 act increased interest rate to 0.75%; P.A. 76-322 increased interest rate to 1%; P.A. 77-614 substituted commissioner of revenue services for tax commissioner, effective January 1, 1979; P.A. 78-280 substituted “judicial district” for “county”; P.A. 80-307 increased interest rate temporarily to 1.25% for taxes due on and after July 1, 1980, but not later than June 30, 1981; P.A. 81-411 continued interest on delinquent taxes at the rate of 1.25% per month, effective July 1, 1981, and applicable to taxes becoming due on or after that date; Nov. Sp. Sess. P.A. 81-4 raised interest rate from 1.25% to 1.66% per month, effective February 1, 1982 and applicable to taxes payable to the state which first become due on or after that date; P.A. 82-325 revised effective date of Nov. Sp. Sess. P.A. 81-4 but without affecting this section; P.A. 85-501 provided lien shall not be effective against a “qualified” encumbrancer as defined in Sec. 12-35b, deleting reference to purchaser or encumbrancer to whom property is transferred between last day of income year and date on which lien is recorded; P.A. 88-314 made technical changes in reference to the rate of interest added if the tax is not paid when due, conforming with the description used for most state taxes, effective July 1, 1988, and applicable to any tax which first becomes due and payable on or after said date, to any return or report due on or after said date, or in the case of any ongoing obligation imposed in accordance with said act, to the tax period next beginning on or after said date; P.A. 93-74 decreased interest rate from 1.66% to 1.25%, effective May 19, 1993, and applicable to taxes due and payable on and after January 1, 1994; May Sp. Sess. P.A. 94-4 reduced interest rate from 1.25% to 1%, effective July 1, 1995, and applicable to taxes due and owing on or after said date; P.A. 95-160 revised effective date of May Sp. Sess. P.A. 94-4 but without affecting this section.