Authority. This regulation is deemed necessary as an aid to effectuation of Insurance Article, §6-101, Annotated Code of Maryland. Applicability. This regulation applies to all domestic insurers. Taxes on Premiums Received by Domestic Companies Which Are Not Taxed by Another State. In determining the amount of direct premiums taxable in this State, premiums written, procured, or received in this State shall be deemed written on property or risks located or resident in this State, except such premiums as are properly allocated or proportioned and reported as taxable premiums of any other state or states.