Estimate Michigan child support under 2025 Michigan Child Support Formula (MCSF 3.02, eff. Jan. 1, 2025) — Income Shares model, current caps and percentages, with a step-by-step worked example.
| Guideline model | Income Shares |
|---|---|
| Income basis | Net (after-tax) income |
| How it works | Both parents’ incomes are combined, a basic obligation is taken from the state’s official schedule, and each parent pays in proportion to their share of combined income. |
| Caps & limits | General Care Equation on combined monthly net income (2025 MCSF); above the top bracket ($17,871.57) courts may exercise discretion; low-income equations below the $1,255 threshold are simplified in this tool |
| Statute / rule | 2025 Michigan Child Support Formula (MCSF 3.02, eff. Jan. 1, 2025) |
| Parameters verified | 2026-07 |
Result: $1,411 per month
Michigan uses the income shares model under 2025 Michigan Child Support Formula (MCSF 3.02, eff. Jan. 1, 2025): both parents’ incomes are combined, a basic obligation is determined, and each parent is responsible for their proportional share. Both parents’ incomes are combined, a basic obligation is taken from the state’s official schedule, and each parent pays in proportion to their share of combined income.
Michigan calculates support on net (after-tax) income as defined in 2025 Michigan Child Support Formula (MCSF 3.02, eff. Jan. 1, 2025). General Care Equation on combined monthly net income (2025 MCSF); above the top bracket ($17,871.57) courts may exercise discretion; low-income equations below the $1,255 threshold are simplified in this tool.
Yes. The guideline amount under 2025 Michigan Child Support Formula (MCSF 3.02, eff. Jan. 1, 2025) is presumptive, not absolute - courts may deviate with written findings for factors like extraordinary medical or educational needs, other children supported, or very high income beyond the guideline range.
Apply through the Michigan child support agency or the family court in your county. Existing orders can be modified on a substantial change in circumstances - typically a significant income change, job loss, or a change in custody. The official calculator/worksheet is linked on this page (micase.state.mi.us).
Estimate only — not legal advice. Based on Michigan guidelines (2025 Michigan Child Support Formula (MCSF 3.02, eff. Jan. 1, 2025)), last verified 2026-07. Courts may deviate. For an official figure use the official Michigan calculator.