Here's what to expect when you request for a modification of your child support order. Click here to learn the steps in the modification journey.Step 1: Fill out your court forms. Fill out the following starting forms: ○ Petition to Modify the Parent-Child Relationship. You're always welcome to change the way you make your child support payments, but the court-ordered amount can change only through a court order. Request to change a court order for child custody, visitation, and support. All child support forms are categorized and linked below as downloadable files. Select the category you need to see the corresponding forms. Explore comprehensive child support modification forms and procedures for navigating child support changes and custody modifications effectively. In Texas, it is not possible to modify back child support.