Free · Wisconsin · Current law
Based on Wisconsin's official Percentage of Income (Varying) formula. Enter both parents' incomes and get an estimate in under a minute.
Before taxes — wages, self-employment, bonuses
A best estimate is fine for now
Taxes, mandatory retirement, union dues…
Work or school related
Estimated monthly support
The other parent pays you, the parent with primary timesharing.
Estimate only — based on a simplified reading of Wisconsin child support guidelines. Official calculator → A judge can deviate. Not legal advice.
Get a plain-English copy of this estimate, the numbers used, and a short checklist for what to review before relying on it.
Wisconsin primarily uses a Percentage of Income model, with the 'Shared Income calculation' being the main method for shared placement cases (at least 25% or 92 days of placement). For shared placement, both parents' gross incomes are considered, and each parent is ordered to provide basic support costs proportional to their care time. Variable costs are also assigned proportionally. For sole custody, child support is calculated as a percentage of the paying parent's gross income, which varies based on the number of children. Special guidelines exist for serial family cases, split placement, high-income payers, and low-income payers.
A substantial change in either parent's income — voluntary or involuntary — can trigger a modification.
Changes in childcare costs or the children's health insurance premiums directly adjust the support amount.
If the custody schedule changes significantly, support can be recalculated under Wisconsin guidelines.
Medical conditions, disabilities, or educational needs can justify a departure from the guideline amount.
Common questions
In Wisconsin, there is a mandatory 120-day waiting period after filing before a divorce can be finalized. Typically, most divorces take between 6 months to one year to finalize, and longer if issues are highly contested.
While you can represent yourself (pro se), it is highly recommended to consult with an attorney to ensure all issues are addressed appropriately and to avoid potential mistakes that can be costly to fix later. A new law allows no-court divorce with attorney representation or a lawyer-mediator.
Yes, Wisconsin is a no-fault divorce state. This means that neither spouse needs to prove the other is at fault for the marriage’s breakdown; only an irretrievable breakdown of the marriage needs to be established. Wis. Stat. § 767.315.
Wisconsin is a community property state, meaning marital property and assets are generally presumed to be divided 50/50. However, a judge can alter this distribution based on various factors, such as the length of the marriage, contributions of each party, and earning capacity. Separate property (gifts or inheritances) is generally not subject to division. Wis. Stat. § 767.61.
Yes, in Wisconsin, a party is not allowed to remarry within six months of getting a divorce. Any marriage within six months will be void.
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