Child Support

In Wisconsin, child support is calculated using guidelines published in Chapter DWD 40 of the Wisconsin Administrative Code.
In general, the guidelines require a person paying child support to pay a percentage of his/her gross income.
- 17% for 1 child
- 25% for 2 children
- 29% for 3 children
- 31% for 4 children
- 34% for 5 or more children

Rock County Courthouse
51 South Main Street
Janesville, WI  53545

Phone:       (608) 757-5700
Fax:           (608) 757-5710

Monday - Friday Hours:
8:00 AM - 5:00 PM

Email Child Support