"Credit share", a credit amount equal to the product of the following:
"Domestic property and casualty insurer", a property and casualty company organized or domiciled in the commonwealth.
"Foreign property and casualty insurer", a property and casualty company organized or domiciled in another jurisdiction.
"Property and casualty insurer", an insurance company which satisfies the definition of an insurance company in section 1 of chapter 175, except life insurance companies as defined in section 118 of said chapter 175, and which is subject to the provisions of this chapter.
Retaliatory taxes, those taxes imposed or assessed by and paid to another jurisdiction by any domestic property and casualty insurer due to the surtax as defined in section 22 of this chapter. Such term, however, shall not include penalties or interest for late payment of taxes.
Mass. Gen. Laws ch. 63, § 29E