In determining the tax payable under section 12-210 with respect to the calendar year 1976, and each subsequent year, every life insurance company incorporated by or organized under the law of any other state may deduct from the gross amount of premiums received on group policies or contracts providing health insurance benefits the entire amount of benefit payments made under such policies or contracts to residents of this state in such year, provided the state of incorporation of such life insurance company provides a similar deduction to all life insurance companies doing such business whether or not incorporated in said state.
Conn. Gen. Stat. § 12-210a
(P.A. 76-346, S. 2, 3.)