Conn. Gen. Stat. § 12-211
(b) Any tax obligation imposed by any city, county or other political subdivision of a state or foreign country on Connecticut insurance companies shall be deemed to be imposed by such state or foreign country within the meaning of this section. For the purposes of this section, the domicile of a foreign insurer shall be that state designated by the insurer in writing filed with said commissioner at the time of admission to this state or within six months after July 1, 1973, whichever date is later, and may be any one of the following states:
(1949 Rev., S. 1893; 1959, P.A. 514, S. 1; 1961, P.A. 10, S. 1; 1963, P.A. 467; February, 1965, P.A. 196, S. 3; P.A. 77-614, S. 163, 587, 610; P.A. 78-303, S. 85, 136; P.A. 79-320, S. 3; P.A. 87-557, S. 1, 2; P.A. 90-134, S. 15, 28; P.A. 05-100, S. 1; P.A. 06-196, S. 88; P.A. 15-247, S. 27; P.A. 17-15, S. 2.)
History: 1959 act made computation on an aggregate state-wide or foreign-country-wide basis mandatory rather than discretionary and specifically applied the tax to the authorized agent of an insurance company; 1961 act made the domicile of an insurance company organized in a country without supervision and regulation similar to that in the United States the state of entry; 1963 act deleted latter provision and added new provision for determining domicile of a foreign insurer; 1965 act included authorized agents of companies for other states or countries in provision re equalization of requirements for doing business, substituted “largest” for “larger” in Subdiv. (3) and exempted fees for agents' licenses from provisions of section; P.A. 77-614 and P.A. 78-303 placed insurance commissioner within the department of business regulation and made insurance department a division within the department of business regulation, effective January 1, 1979; P.A. 79-320 substituted commissioner of revenue services for insurance commissioner and deleted reference to abolished department of business regulation; P.A. 87-557 added the provision that reciprocity as provided in this section shall not be applicable to special purpose assessments imposed in connection with particular kinds of insurance, including but not limited to workers' compensation assessments and insurance guaranty association fund assessments; P.A. 90-134 exempted premium taxes on special health care plans from provisions of section; P.A. 05-100 divided section into Subsecs. (a) to (c) and amended Subsec. (c) to provide an exception to exemptions listed for imposition of retaliatory charges; P.A. 06-196 made a technical change in Subsec. (a), effective June 7, 2006; P.A. 15-247 amended Subsec. (c) to add “revision of 1958, revised to January 1, 2013, and 38a-551,” and make a technical change, effective July 10, 2015; P.A. 17-15 made technical changes in Subsec. (c).