Use this free Michigan Child Support Calculator to estimate how much you may owe or receive in child support each month. Based on 2025 Michigan child support guidelines, this tool gives you a quick and simplified estimate with zero hassle.

Why Use a Child Support Calculator in Michigan?

Michigan courts consider income, number of children, healthcare costs, and other financial factors when determining support. This calculator helps you:

  • Estimate support based on updated 2025 figures

  • Understand how various deductions affect the total

  • Plan before mediation or court proceedings

  • Save time from manually filling out lengthy worksheets

You can also check our Alabama Child Support Calculator

How to Use This Calculator

  1. Enter the Monthly Net Income of the non-custodial parent

  2. Add the Number of Children the support is for

  3. Include Monthly Health Insurance Costs for the children

  4. Input Other Monthly Deductions (such as union dues)

  5. Enter any Support Paid for Other Children

  6. Click the “Calculate Support” button to get your estimate

This calculator uses a simplified formula and is meant for informational purposes only.

michigan child support

How Child Support is Calculated in Michigan

Michigan uses an Income Shares Model combined with detailed formulas to determine support amounts. The idea is to provide children with the same proportion of parental income they would receive if the family lived together.

The calculation includes:

  1. Net income of each parent (after taxes and deductions)

  2. Number of children

  3. Parenting time overnights

  4. Costs for medical insurance and work-related childcare

  5. Adjustments for other support obligations

Our calculator uses the official state formula to provide a reliable estimate.

Parenting Time & Michigan’s Support Formula

Parenting time plays a significant role in the Michigan formula. The more overnights a parent has, the greater the potential reduction in their child support obligation. Michigan recognizes that shared parenting involves direct financial contributions.

  • Over 128 overnights per year typically qualifies for shared custody adjustment

  • Equal parenting time (50/50) doesn’t eliminate child support—it depends on income differences

  • Enter accurate overnights to get the most precise estimate

What Impacts Michigan Child Support?

✅ Income

Wages, commissions, bonuses, tips, unemployment, retirement, and more.

✅ Deductions

Taxes, union dues, and pre-existing child/spousal support are deducted to find net income.

✅ Add-On Costs

  • Health insurance premiums for the child

  • Work-related childcare expenses

  • Extraordinary medical or educational expenses

✅ Parenting Time

The number of overnights significantly affects the final amount due.

When Does Child Support End in Michigan?

Child support typically ends when the child:

  • Turns 18, or

  • Graduates high school (whichever is later), but not beyond age 19½

Support may extend further for a child with serious physical or mental disabilities, if ordered by the court.

Some Other Tools

FAQ – Michigan Child Support

Q: Is this calculator legally binding?
A: No. It’s an unofficial estimator based on simplified guidelines. Courts use the Michigan Child Support Formula Manual.

Q: Do both parents’ incomes count in Michigan?
A: Yes, but this calculator focuses on the non-custodial parent’s obligation for simplicity.

Q: Can shared custody change the result?
A: Yes. Shared parenting time may alter the final court order.

Disclaimer: This Michigan Child Support Calculator offers a general estimate based on simplified assumptions. It is not a substitute for legal advice or official court calculations. For accurate support amounts, please consult a family law attorney or visit the Michigan Department of Health and Human Services.