When a child turns 18, many parents assume child support obligations end automatically. In Texas, that’s often true, but unpaid child support—also known as arrears—does not disappear once your child reaches adulthood. The state has strong laws in place to ensure parents fulfill their financial responsibilities, even after a child is legally an adult.
Unpaid child support doesn’t expire
State law makes it clear that unpaid child support remains enforceable until it’s paid in full. The obligation to pay past-due support doesn’t vanish when a child turns 18 or graduates from high school. The state can continue to collect these payments through various enforcement actions. This includes wage garnishment, tax refund interception, and liens on property or bank accounts.
Enforcement tools after the child becomes an adult
The Texas Attorney General’s Child Support Division has several tools to collect overdue payments. Even after a child is no longer a minor, the state can suspend the non-paying parent’s driver’s license, professional license, or even hunting and fishing licenses. Courts may also hold the parent in contempt, which can result in fines or jail time. These measures ensure that child support arrears are taken seriously.
Payment plans and negotiation options
Parents who owe back child support can often work out a payment plan with the Attorney General’s office. While interest continues to accrue on unpaid amounts, making consistent payments shows good faith and can prevent harsh penalties. It’s better to take action early rather than ignore the debt, as unpaid support can remain collectible for years.
Long-term impact of unpaid support
Ignoring unpaid child support can damage credit, lead to ongoing wage garnishment, and create long-term financial stress. Texas law allows enforcement for up to ten years after the child turns 18 or the court issues the final support order, whichever is later. Addressing the issue promptly can help you avoid further legal and financial trouble.

