Conn. Gen. Stat. § 12-494
(a) There is imposed a tax on each deed, instrument or writing, whereby any lands, tenements or other realty is granted, assigned, transferred or otherwise conveyed to, or vested in, the purchaser, or any other person by such purchaser's direction, when the consideration for the interest or property conveyed equals or exceeds two thousand dollars:
(b) The rate of tax imposed under subdivision (1) of subsection (a) of this section shall, in lieu of the rate under said subdivision (1), be imposed on certain conveyances as follows:
(2) In the case of any conveyance in which the real property conveyed is a residential estate, including a primary dwelling and any auxiliary housing or structures, regardless of the number of deeds, instruments or writings used to convey such residential real estate, for which the consideration or aggregate consideration, as the case may be, in such conveyance is eight hundred thousand dollars or more, the tax under said subdivision (1) shall be imposed:
(1967, P.A. 693, S. 1; 1971, P.A. 158, S. 2; June Sp. Sess. P.A. 83-1, S. 6, 15; P.A. 85-480, S. 1, 3; P.A. 86-397, S. 8, 10; P.A. 89-205, S. 1; 89-251, S. 19, 203; P.A. 91-356, S. 1, 3; P.A. 92-57, S. 1, 2; P.A. 03-2, S. 40; P.A. 04-201, S. 4; 04-216, S. 51; P.A. 05-268, S. 1, 2; P.A. 07-154, S. 6; June Sp. Sess. P.A. 07-1, S. 128; June 11 Sp. Sess. P.A. 08-1, S. 1; June Sp. Sess. P.A. 10-1, S. 1; P.A. 11-6, S. 102; P.A. 19-117, S. 337; P.A. 23-207, S. 24.)
History: 1971 act substituted “consideration for the interest or property conveyed” for “consideration or value of the interest or property conveyed”; June Sp. Sess. P.A. 83-1 provided for imposition of a conveyance tax, payable to the state on each deed or other instrument conveying lands, tenements or other realty at the rate of 0.5% of the purchase price for the interest in real property conveyed and for continuation of the existing conveyance tax payable to the municipality at the rate of $1.10 for each $1,000 of purchase price, effective July 1, 1983, and applicable to conveyances occurring on or after said date; P.A. 85-480 amended the language of imposition so that the tax is imposed on the sale or transfer of real property and not upon the deed or instrument of conveyance; P.A. 86-397 reduced the rate of tax from .05% to .045% of the full purchase price for the interest in real property conveyed, effective June 11, 1986, and applicable to any conveyance of an interest in real property occurring on or after January 1, 1987; P.A. 89-205 made technical changes, including descriptions of the imposition of tax as applied to the deed in lieu of imposition on the sale or transfer of an interest in real property and of the rate of tax as being applied to the consideration for the interest conveyed in lieu of the full purchase price; P.A. 89-251 increased the tax under Subsec. (a)(1) from .045% to 0.5% of the consideration, changed the rate of tax in Subsec. (a)(2) from $1.10 for each $1,000 of full purchase price to 0.011% of the consideration and added Subsec. (b) providing for a higher rate of tax on conveyances for purposes other than residential and for residential property in the case of an estate for which the consideration exceeds $800,000; P.A. 91-356 added Subsec. (b)(3), re rate for certain transfers in lieu of foreclosure, effective July 1, 1991, and applicable to conveyances occurring on or after said date; P.A. 92-57 amended Subsec. (b)(3) by including conveyances to the subsidiary of a financial institution holding a delinquent mortgage on the conveyed real property, effective July 1, 1992, and applicable to conveyances occurring on or after that date; P.A. 03-2 amended Subsec. (a) to make technical changes and increase the municipal portion of the tax to 0.25% from March 15, 2003, until July 1, 2004, made a technical change in Subsec. (b) and added new Subsec. (c) re an additional tax which certain municipalities may impose during said period, effective March 15, 2003; P.A. 04-201 amended Subsec. (b) to add provisions re multiple instruments used to convey residential property, effective June 3, 2004; P.A. 04-216 amended Subsec. (a)(2) to extend the time period for the higher rate thereunder until July 1, 2005, and amended Subsec. (c) to delete sunset provision related to the tax imposed under that subsection, effective May 6, 2004; P.A. 05-268 amended Subsec. (a) to retain the rate of 0.25% until July 1, 2007, and amended Subsec. (c) to make a technical change and add “up to” re additional tax rate, effective July 1, 2005; P.A. 07-154 amended Subsec. (b) to define “unimproved land”, effective July 1, 2007; June Sp. Sess. P.A. 07-1 amended Subsec. (a) to retain the rate of 0.25% until July 1, 2008, effective July 1, 2007; June 11 Sp. Sess. P.A. 08-1 amended Subsec. (a) to retain rate of 0.25% until July 1, 2010, effective June 16, 2008; June Sp. Sess. P.A. 10-1 amended Subsec. (a) to retain rate of 0.25% until July 1, 2011, and make a technical change, effective July 1, 2010; P.A. 11-6 amended Subsec. (a) by increasing state portion of tax from 0.50% to 0.75% in Subdiv. (1) and deleting provision providing that municipal portion be lowered to 0.11% on July 1, 2011, in Subdiv. (2), and amended Subsec. (b) by increasing tax on non-residential property from 1% to 1.25% in Subdiv. (1), increasing tax on residential estate sold for more than $800,000 from .50% to .75% on the portion of sales price up to $800,000, and from 1% to 1.25% on the portion in excess of $800,000 in Subdiv. (2), and increasing tax on conveyance to a financial institution of a property with a delinquent mortgage from 0.50% to 0.75% in Subdiv. (3), effective July 1, 2011, and applicable to conveyances occurring on or after that date; P.A. 19-119 amended Subsec. (b)(2) to add Subpara. (C) re rate on and after July 1, 2020 on portion of consideration in excess of $800,000 up to $2,500,000 and rate on portion of consideration in excess of $2,500,000, and made technical and conforming changes, effective July 1, 2019; P.A. 23-207 added Subsec. (d) to direct the Comptroller to transfer annual conveyance tax revenue exceeding $300,000,000 to Housing Trust Fund and providing that the threshold amount shall be adjusted annually for inflation.