If the commissioner finds in respect of an income year that an insurance company, other than a domestic insurance company, which is an affiliate of an insurance holding company system that includes a domestic insurance company has been formed or availed of for the principal purpose of avoidance or evasion of the tax imposed by this chapter, the commissioner may for purposes of such tax treat such company as if it were a domestic insurance company. The terms "affiliate" and "insurance holding company system" shall have the respective meanings given them in section 38a-129.
Conn. Gen. Stat. § 12-231a
(P.A. 73-350, S. 7, 27.)