StateTally

Michigan Child Support Calculator (2026)

Under the 2025 Michigan Child Support Formula Manual § 3.02(B) and the accompanying General Care Support Tables, Michigan uses an income‑shares model that ties the basic support amount to the combined monthly net income of both parents and the number of children, with special percentages applied once income exceeds $17,871.57.

Reviewed 2026-09-11 · Estimates only — not legal or financial advice. Figures pending final verification against the current statute/schedule. · Ver esta página en español

The parent who will pay support (usually the one with less parenting time). Monthly net income as the state defines it.
The parent who receives support. Both incomes are added to find the schedule amount.
The law behind this calculator: Michigan General Care Support Tables (income shares formula on combined monthly net income) — 2025 Michigan Child Support Formula Manual § 3.02(B) (General Care Equation) and 2025 MCSF Supplement § 2.03 (General Care Support Tables); MCL 552.519(3)(a)(vi).

How Michigan calculates it

  • Add both parents' monthly net incomes to get the combined net income.
  • Look up the basic child support amount in Michigan’s General Care Support Tables using the combined net income and the number of children (tables cover $0‑$17,871.57 in $50 steps; interpolate between rows as the statute directs).
  • Multiply that basic amount by the paying parent’s share of the combined income (paying parent net ÷ combined net) to determine the parent’s basic obligation.
  • If combined net income exceeds $17,871.57, add the applicable percentage of the excess (e.g., 16.2% for two children) to the top‑row figure, unless the court exercises discretion for very high incomes.
  • Child‑care, health‑insurance, and parenting‑time adjustments are added separately and are not part of the basic figure.

Worked example

In the worked example, the paying parent has a net income of $4,000 per month and the other parent $2,500, giving a combined net income of $6,500. Using the General Care Support Tables the basic obligation for two children is $1,953 (interpolated between the $4,531 and $7,198 rows). The paying parent’s share of the combined income is 61.5%, so the parent’s basic payment is 61.5% × $1,953 = $1,202 per month before any child‑care, health‑insurance, or parenting‑time adjustments.

Frequently asked questions

Is child support taxable in Michigan?

In Michigan, child support payments are not taxable to the receiving parent and are not deductible by the paying parent.

How does the formula treat a parent whose net income is at or below $1,255?

A parent with net income at or below the $1,255 Low Income Threshold owes 10% of their income; a transition equation smooths incomes just above that threshold, though this calculator does not model the transition.

What happens when combined monthly net income is above $17,871.57?

The statute adds a percentage of the income over $17,871.57—11.3% for one child, 16.2% for two, 18.2% for three, 20.4% for four, and 22.3% for five or more children—to the top‑row amount, unless the court uses discretion for extremely high incomes.

Can a Michigan parent receive partial support for some children while another case is pending?

Michigan’s formula is applied separately to each case; a parent may have multiple support orders, each calculated on the combined income for the children involved in that specific case.

What changed in the 2025 Michigan Child Support Formula Manual?

Effective January 1 2025 the manual introduced a piecewise‑linear General Care Equation with six income levels and updated marginal percentages, replacing the older row‑by‑row schedule and allowing interpolation for more precise calculations.

Is the calculation different in Detroit, Grand Rapids or Ann Arbor?

No. 2025 Michigan Child Support Formula Manual § 3.02(B) (General Care Equation) and 2025 MCSF Supplement § 2.03 (General Care Support Tables); MCL 552.519(3)(a)(vi) sets one statewide guideline, so a case in Detroit, Grand Rapids, Ann Arbor uses the same percentages as anywhere else in Michigan. Judges everywhere in the state may deviate only with written findings.

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Child Support by city in Michigan

Michigan applies one rule statewide, so the numbers do not change by city. These pages name the county court that actually hears the case and run the same verified formula.

Detroit · Grand Rapids · Warren · Sterling Heights · Ann Arbor · Lansing · Dearborn · Livonia · Troy · Farmington Hills · Westland · Flint · Wyoming · Rochester Hills · Southfield · every city we cover

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StateTally. (2026). Michigan Child Support Calculator (2026). Retrieved September 17, 2026, from https://statetally.com/child-support/michigan/