The attorney, in lieu of all other state, county, or municipal fees and taxes of any and every character in this state, shall pay annually to the state, on account of the transaction of the reciprocal or interinsurance exchange business in this state, a license fee of fifteen dollars and a tax as provided by section 26.1-03-17 on the gross premiums or deposits collected from subscribers in this state after deducting therefrom all sums returned to the subscribers or credited to their accounts other than for losses.
N.D.C.C. § 26.1-09-10