Learn how to apply for child support services and find procedures for establishing parentage and custody, as well as payment and enforcement. Get the paperwork that you plan to file with the court and fill it out to the best of your ability.Complete the income withholding documents. You may file for the Property Tax Refund on paper or electronically. The due date is August 15. How to fill out this form: 1. Your report month is: 2. The Hennepin County Family Court SelfHelp Center offers help on divorce, custody, child support, and other family law cases. The IWO is the OMBapproved form (PDF) used for income withholding in tribal, intrastate, and interstate cases as well as all child support orders. Community Action Partnership of Hennepin County (CAP-HC) provides FREE basic tax return preparation for 2023 tax returns to eligible individuals and families.