Used to provide employers with information on how to remit child support payments and provides employees with a payment remittance form. DCS offers several free electronic payment options to meet the needs of any size employer.Fill out forms for Child Support Worksheets and Order. Washington Forms Online. The IWO is the OMBapproved form (PDF) used for income withholding in tribal, intrastate, and interstate cases as well as all child support orders. The Northwest Justice Project has a program called Washington Forms Online. It helps people fill out family law forms on a computer. Make each money order or check payable to the "District of Columbia (DC) Child Support Clearinghouse. To get the fee waived, the parent can fill out a Petition for Waiver of Fees . Contact Us ; To submit documents to your child support worker regarding child support, please upload documents to this link.