Wisconsin Child Support Calculator

Child support calculator

Simple Child Support Calculator

To calculate child support in Wisconsin, we recommend using the Wisconsin Department of Children and Families tools. There appears to be no simpler way to estimate support payments.

The Wisconsin Department of Children and Families tools steps you through a complex calculation. You may need to work through each part carefully to get an accurate assessment. Unfortunately, the Wisconsin scheme is complex and a simple, reliable calculator does not appear to be available.

Parenting Time Calculator for Wisconsin

According to Wisconsin child support guidelines, payment amounts depend on how much time a child spends with the non-custodial parent.

Use this calculator to work out how much care the non-custodial parent provides. Remember to add in all fractions of days when the non-custodial parent has parenting time.

Calculate parenting time %

Regular days
Vacation days each year*
183 days per year.
50.0% of parenting time.

* Vacation days are all days when the regular schedule does not apply.

How Child Support is Calculated in Wisconsin


Child support payments in Wisconsin are calculated using the income percentage method. Payments are calculated as a fraction of the non-custodial parent’s income. The more children involved, the higher amount that will generally have to be paid.

Wisconsinites paying the most child support have high incomes and multiple children. The biggest recipients of child support are parents with primary care of multiple children where the paying parent has a high income.

The shared-placement formula is to be used at the discretion of the court. The court may use the shared-placement formula if the parents share the placement of their children at least 25% of the time - at least 92 days/year.

Child support is determined as a percentage of the payor’s income as set forth by Wisconsin law. For example, if a couple has three children together, and the children all live with one parent, the other parent is required to pay child support equal to 29 percent of his or her gross monthly income.

Divergent Family Law

Wisconsinite child support guidelines apply to the whole state, including the cities of Milwaukee, Madison, Green Bay, Kenosha, Racine and Appleton. Variations in support payments may be made by the agreement of parents or at the discretion of a judge presiding over your case.

Payment Calculators by State

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