Michigan Child Support Deviation Factors
Michigan still begins with the child support formula. If a different amount is ordered, MCL 552.605 currently requires the court to explain why the formula would be unjust or inappropriate in the case at hand.
Use This With Other Michigan Tools
Support pages should route back into the core Michigan calculators and legal explainers.
Follow the filing path when you need to open or respond to a support case.
Start from the broad Michigan support overview and route into the right tool.
Review the guideline rules, tables, and core legal standards for this state.
What deviation means in Michigan
In Michigan, deviation does not mean skipping the formula. It means starting with the formula, identifying why that result is not right for the case, and building a record strong enough for the court to state written reasons for choosing a different amount.
- Written findings still matter. Michigan still expects the court to identify why the formula result would be unjust or inappropriate before departing from it.
- Input errors are not true deviations. If income, overnights, or expense inputs are wrong, fix those formula facts first before arguing for a different amount.
- Updated records matter. A real deviation argument usually depends on accurate current financial records, not general fairness language.
- Modification and deviation are related but different. One question is whether the order should be reviewed at all; the other is whether the formula result itself should be left behind.
Good practical use of this page
Run the current formula correctly first. If the result still does not fit the case, then organize the record for a supported written-deviation request.
Common mistake to avoid
Do not use deviation language as a shortcut for stale numbers or missing records. Michigan still expects a formula baseline before the court moves away from it.