Michigan Compiled Laws, Chapter 500. Insurance Code of 1956 § 500.1813

Sec. 1813. A risk retention group that does not have a certificate of authority issued by the commissioner shall be liable for the payment of a tax of 2% on direct business for a risk resident or located within this state and, instead of the costs and expenses that may be imposed by the commissioner pursuant to this chapter, an additional regulatory fee of 0.5% on direct business for a risk resident or located within this state and shall report to the commissioner the net direct premiums written for that business.