The Michigan Department of Treasury has been made aware that some "Reminder of Tax Due" letters sent to taxpayers contain an incorrect toll-free (1-800) TTY number, which may connect callers to a potential scam. Taxpayers with questions regarding unpaid individual income taxes are asked to contact the Treasury directly at 517-636-4486. We apologize for any confusion or concern this may have caused.
Unitary Business Groups 5. How does a unitary business group file under the CIT when one or more of the members of the unitary business group do not have nexus with Michigan?
A taxpayer that is a unitary business group is required to file a return with Michigan so long as any one member of the unitary business group has nexus with Michigan.
Example: Corporations X, Y, and Z form a unitary business group. Corporation X has nexus with Michigan. Therefore, the unitary business group of Corporations X, Y, and Z must file a combined return as a single taxpayer.