Rock County, State of Wisconsin

Child Support Enforcement

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Rock County
Child Support Enforcement

Rock County Courthouse
51 South Main Street
Janesville, WI 53545

Phone: (608) 757-5700

Fax:

(608) 757-5710

or  

(608) 757-5773

 

Important Links

Wisconsin Child Support Laws & Regulations

Payment Information 
 
 

 

 

Wisconsin Child Support

In Wisconsin, child support is calculated using a set of guidelines published in the Wisconsin Administrative Code. These guidelines are now found in Chapter DWD 40. Click to view Child Support Orders and Guidelines, or go to Wisconsin Revisor of Statutes Site to view the rest of the Wisconsin Administrative Code.

In general, the guidelines require a person paying child support to pay a percentage of their gross income (income before deductions) as child support. The guidelines are:

  • 17% for 1 child 

  • 25% for 2 children

  • 29% for 3 children

  • 31% for 4 children

  • 34% for 5 or more children

DWD 40 provides formulas for calculating child support for situations where all the children live with one parent, where children spend substantial time with both parents, or where each parent has some of the children.  DWD child support calculator**

 

Payment Information

 For payment information on your child support account, you should call the Wisconsin Child Support Collection Trust at 1-800-991-5530. You should have your PIN number ready when you call.

Child support payments should be sent to:

Wisconsin Support Collection Trust Fund
PO Box 74400
Milwaukee, WI 53274-0400
 
To ensure that your payment is properly applied, you should include the appropriate payment coupon.  There is a $35 Receiving and Disbursing fee due with the first child support payment each year. This is a processing fee charged by the state.

 

 

 

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