All child support forms are categorized and linked below as downloadable files. Select the category you need to see the corresponding forms.The Texas Attorney General's office provides some legal forms related to child support on their website including complaint forms and income withholding forms. Filers in Dallas County can now e-file an Uncontested Divorce Without Children and Adult Name Changes through Guide and File! I understand I must fill out and attach a Declaration in Support of Changing. Primary Custody within One Year form to this Petition. File this form when you and the other party cannot agree to a temporary arrangement for parenting, child support, or other issues before the final hearing date. This section outlines everything you need to know to get started with your child support case. Click the links below to learn more. The information you need to fill out on these forms is mostly information about you, your children, and the current living situation.