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Wisconsin Child Support Calculator

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To use the child support calculator, select or enter the appropriate information next to each statement.

When you have completed the form, click on the calculate button to get an estimate of the amount of child support that the non-custodial parent will have to pay to the custodial parent in Wisconsin.

Disclaimer: Please remember that these calculators are for informational and educational purposes only. The amount of child support a court will order for any particular case may be different from the amount estimated by the calculator.

For the most part, these calculators assume that all of the children at issue will primarily live with one parent. They are not intended to estimate child support for joint physical custody or split custody arrangements.

These calculators do not take into account any possible adjustments for children who are not subject to the custody order, but who are living with one of the parents. Finally, these calculators may be based on older or outdated state guidelines or calculations and may not take into consideration state or federal tax implications on income.

These and many other factors can affect a child support order entered by a court.

Modifying Child Support in Wisconsin

The Wisconsin Department of Children and Families Child Support Program can assist families with many issues related to child support, including modifying child support orders. Wisconsin’s Child Support Program can review cases to determine if the amount of monthly child support should increase or decrease and, if so, by how much.

There are three main criteria the Child Support Program uses to determine if a change in child support is warranted:

  • The current child support order does not conform to Wisconsin’s child support guidelines
  • The current child support order does not include medical support
  • The current child support order would be changed by at least 15% or at least $50 a month (whichever is greater)

If the Child Support Program determines that a child support modification is warranted, they may draft a new child support order and ask both parents to sign it. It is important to be aware that the Child Support Program must submit any proposed changes in child support to the court for approval—even if both parents sign the new proposed agreement. If a parent does not agree to a modification, Child Support Services may seek the court’s assistance in changing the child support order. Ultimately, it is the court’s decision whether or not to modify a child support order.

You can apply for services in Madison, Milwaukee, Kenosha, La Crosse, Eau Claire and elsewhere throughout the state from Wisconsin’s Child Support Program at Fees may apply.

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