No, Michigan law prohibits sexual relationships between siblings under MCL 750.520, classifying incest as a felony punishable by up to 15 years imprisonment. Non-sexual sibling relationships remain legal but face social stigma and potential employment consequences in regulated sectors.
Key Regulations for Dating Siblings in Michigan
- Criminalization of Sexual Conduct: MCL 750.520 criminalizes sexual relations between siblings, including half-siblings, with penalties escalating for repeat offenses or coercive circumstances.
- No Explicit Ban on Non-Sexual Relationships: Michigan does not criminalize non-sexual sibling relationships, but the Michigan Department of Civil Rights monitors workplace conflicts arising from such dynamics under the Elliott-Larsen Civil Rights Act.
- 2026 Compliance Shifts: Proposed 2026 amendments to MCL 750.520 may expand definitions of “sibling” to include step-siblings and foster siblings, increasing legal exposure for non-traditional family structures.
Local courts in Wayne, Oakland, and Macomb counties have historically enforced incest laws strictly, with recent cases involving genetic testing to establish sibling relationships. Employers in Michigan’s healthcare and education sectors may impose internal policies restricting sibling relationships to mitigate conflicts of interest, aligning with Michigan’s 2024 Workplace Harassment Guidelines.