Mich. Comp. Laws § 600.877

Sec. 877. All fees received by the probate court during each month under sections 871 to 874 must be paid on or before the tenth day of the succeeding month as follows: (a) Beginning March 28, 2013, 47.5% of each fee must be paid to the county treasurer and credited to the county general fund. (b) Beginning March 28, 2013, 52.5% of each fee must be paid to the state treasurer and credited to the state general fund.