Guideline model
Wisconsin uses the percentage-of-income model. The worksheet begins with gross income and then applies the state's child-count, parenting-time, and expense rules.
Wisconsin · WI
Wisconsin Child Support Guidelines & Calculator
A state-specific overview of Wisconsin child support guidelines, income model, parenting-time adjustments, and an estimate you can run with your own numbers.
Informational only—not legal advice. Laws and guidelines change. Verify the current rule with the official court resource and a licensed Wisconsin family-law attorney.
What the estimate uses
For one child, this reference model uses an effective guideline rate of about 17%; for two children, about 25%. These are planning estimates, not the official worksheet amount.
Parenting-time adjustment
A shared-parenting adjustment may apply at about 92 overnights per year for the lesser-time parent. The exact credit depends on the current worksheet and the facts of the case.
Income protection and add-on expenses
The reference model includes an estimated self-support reserve of about $1,200 per month. Childcare, medical costs, insurance, and other add-ons can change the final amount.
Why the number may differ
Wisconsin applies 17/25/29/31/34% of the obligor's gross income. Shared placement (25%+ / 92 overnights) switches to a 1.5 cross-credit offset. State tables, caps, credits, and court practices change. Use the estimate as a conversation starter and confirm the current worksheet with the Wisconsin court resource or a family-law attorney.
Estimate Wisconsin child support
Enter both incomes, the number of children, overnights, and recurring add-on expenses in the calculator. It explains each step and keeps the inputs in your browser.
Open the state-aware estimator Read the Wisconsin parenting plan requirementsWisconsin child support questions
How is child support calculated in Wisconsin?
The Wisconsin guideline uses the percentage-of-income model and starts with gross income. A final order also depends on children, parenting time, healthcare, childcare, and other case facts.
Does parenting time affect child support in Wisconsin?
The shared-time adjustment in this reference model begins at about 92 overnights, but the official worksheet controls.
Is this Wisconsin child support estimate legal advice?
No. It is an educational estimate and not a court calculation, legal opinion, or guarantee of an amount.
More Wisconsin family-law resources
Compare the rule with your written plan, schedule, and records before you file or negotiate.
- State-by-state child support estimator
Applies your state's own guideline model to your numbers.
- Parenting plan guides by state
Filing venue, required classes, and the terminology each state's courts use.
- Custody percentage calculator
Count overnights across a full cycle the way state worksheets do.
- Shared expense tracking with receipts
Split costs, attach receipts, and keep a running reimbursement balance.
- Court-ready PDF legal exports
One-click evidence packets for your attorney or a hearing — unlimited and free.