[header] How to file for child support in texas [title] Contact the attorney general, if necessary. [step] In some situations, the office of the attorney general will file for child support on your behalf. Applying for public assistance to help support the children will automatically trigger the state to file for child support on your behalf, including establishing paternity if necessary. 
If you have received public assistance, then contact the office of the attorney general to start a petition for child support. [substeps] Find your local child support division office by visiting this website.