Family Law · 2024-08-02 · 8 min read · Anthony Robles
Mistaken Paternity in Texas: How to Stop Support for a Child Who Isn't Yours
TL;DR (Quick Summary)
Texas has a specific statute for mistaken paternity: Family Code §161.005 lets a man who acknowledged or was adjudicated the father — without genetic testing, believing he was the dad — terminate the parent-child relationship after DNA proves he isn't. He must file within TWO YEARS of discovering he's not the biological father. Termination ends FUTURE support only: arrears already accrued still stand. Men who knew the truth all along, or who adopted, cannot use the statute.
How the §161.005 Process Works
- Who qualifies: a man who signed an Acknowledgment of Paternity or was adjudicated father without genetic testing, believing at the time he was the biological father because of a relationship with the mother.
- Deadline: file within 2 years of the date you learned you are not the biological father.
- Process: the court holds a preliminary hearing; if your claim is plausible, it orders genetic testing. If DNA excludes you, the court terminates the relationship.
- Effect: future child support ends on termination. Back child support already owed remains collectible.
Other Paths — and Traps to Avoid
If you signed an AOP fewer than 60 days ago, you can simply rescind it. Beyond 60 days but before four years, an AOP can be challenged for fraud, duress, or material mistake of fact. And if you're being sued for paternity now — never sign anything without demanding DNA testing first. Presumed fathers (married to the mother) face different, tighter rules, including a general 4-year window with exceptions.
These cases are urgent and deadline-driven. If you just found out, start the clock analysis today: (432) 366-6000.
Frequently Asked Questions
Does DNA proof automatically stop my child support?
No — you must file a §161.005 petition and get a court order. Until a judge terminates the relationship, the support order stands and keeps accruing.
Do I get back the support I already paid?
No. Texas does not refund past support, and arrears that accrued before termination remain owed. The statute only ends the obligation going forward.
What if I missed the 2-year deadline?
The §161.005 door likely closes, but other theories (fraud challenges to an AOP, bill of review in rare cases) may exist. Get a case-specific evaluation immediately.
Can I keep seeing the child after termination?
Termination ends legal rights and duties both ways. Some men choose not to file for exactly this reason — the statute forces a real decision about the relationship, not just the money.