(a) This section applies to:
(1) an insurer authorized to engage in the business of insurance in this state other than an eligible surplus lines insurer; and
(2) a health maintenance organization authorized to engage in the business of a health maintenance organization in this state.
(b) Except as otherwise provided by this code or the Labor Code, an insurer or health maintenance organization subject to a tax imposed by Chapter 4, 221, 222, 223A, 224, or 257 may not be required to pay any additional tax imposed by this state or a county or municipality in proportion to the insurer’s or health maintenance organization’s gross premium receipts.

(c) Subsection (b) does not:
(1) limit the applicability of other taxes, fees, and assessments imposed by this code; or
(2) prohibit the imposition and collection of state, county, and municipal taxes on the property of insurers or health maintenance organizations or state, county, and municipal taxes imposed by other laws of this state, unless a specific exemption for insurers or health maintenance organizations is provided in those laws.