If you lose your job, take a pay cut, or become unable to work, notify the court immediately — simply telling the Attorney General’s office isn’t enough. You need an actual order from a judge or child support master to change the amount, and it’s worth getting a lawyer involved if you can.
This matters because Texas courts generally can’t reduce support you already owe, even with a good explanation, if you waited to report the change. Report it right away, provide proof of the income change, and formally request a reduction.
A judge can modify your support if there’s been a substantial change in your circumstances, or if it’s been at least three years since the order was last set and your current guideline amount would differ by 20% or $100 from what you’re paying now. The court may also require you to actively seek work or enroll in a job training program.