Paternity is not just a line on a birth certificate. It triggers legal parenthood under Chapter 160 of the Texas Family Code, which means rights, obligations, and deadlines attach the moment it is established.
Get it right and a father gains standing to seek custody and visitation while a child secures support and benefits. Get it wrong, miss a deadline, or sign the wrong form, and those rights can become harder or impossible to correct later.
What Paternity Involves in Texas
Paternity is the legal establishment of a parent-child relationship between a father and a child. Under the Texas Uniform Parentage Act, set out in Chapter 160 of the Texas Family Code, paternity can be established in three primary ways: presumed paternity through marriage, voluntary acknowledgment of paternity, or court adjudication. [1]
Once paternity is legally established, the father becomes a legal parent with enforceable rights and duties. Those include the right to seek conservatorship and possession, the right to participate in medical and educational decisions, and the obligation to pay child support. Without legal paternity, an unmarried father has no automatic parental rights in Texas, regardless of whether he is named on the birth certificate or actively involved in the child’s life.
Most paternity cases fall into one of three situations:
- Unmarried parents who agree on who the father is and need to make the relationship legal
- Cases where paternity is disputed and genetic testing is needed to answer the question
- Cases where a presumed or acknowledged father wants to challenge paternity within the deadlines Texas law allows
Our firm handles all three paths, from quiet AOP matters to fully contested suits.
How Texas Courts Determine Paternity
Texas courts apply specific legal rules to decide who is the legal father. Knowing which rule applies to your situation is the first step in any paternity case.
Factors courts consider:
- Presumed father status. A man is the presumed father if he was married to the mother when the child was born, or if the child was born within 300 days after the marriage ended by death, annulment, or divorce. [2]
- Voluntary Acknowledgment of Paternity. If both parents sign a valid Acknowledgment of Paternity (AOP) form, the signor becomes the legal father without a court order. [3]
- Genetic testing results. Courts rely on scientifically reliable DNA testing. A man is rebuttably identified as the father when a test shows at least a 99% probability of paternity and a combined paternity index of at least 100 to 1. [4]
- Who can file. Mothers, alleged fathers, children through a legal representative, and the Office of the Attorney General all have standing to file a paternity suit in Texas.
- Best interest of the child. Once paternity is established, related questions about conservatorship, possession, and support are decided under the best-interest standard.
Each fact pattern changes which path is available and what deadlines apply. That is why paternity cases are rarely as simple as “just take a DNA test.”
Types of Paternity Cases in Texas
Most paternity matters fall into one of two pathways: establishing paternity or challenging it.
Establishing Paternity
This is the most common paternity matter. It applies when a father needs legal recognition as a parent, a mother needs legal clarity and support, or the state is pursuing paternity to collect child support. Paths include signing a voluntary Acknowledgment of Paternity, obtaining a court order after genetic testing, or an action initiated by the Office of the Attorney General.
Challenging Paternity
This applies when a man has been named or presumed the father but believes he is not, or when someone wants to rebut a presumption or rescind an AOP. Texas law imposes strict deadlines on these challenges, and missing them can permanently lock in legal fatherhood.
How Long Paternity Cases Take in Texas
Most paternity cases in Texas take several months to resolve. The exact timeline depends on whether paternity is contested, whether genetic testing is ordered, and the court’s docket in your county.
- Uncontested AOP. Paternity can be established the same day the form is signed and filed with the Texas Vital Statistics Unit.
- Agreed court order. Often resolved in a few weeks to a few months, depending on the court’s calendar.
- Contested paternity suit. Typically four to twelve months, driven by genetic testing, discovery, and court availability.
- Rescission of an AOP. Must be filed within 60 days of the effective date or the date of the first court hearing related to the child, whichever comes first. [5]
- Challenge to presumed paternity. Generally must be filed within four years of the child’s birth, with narrow exceptions. [6]
Deadlines in paternity cases are not flexible. A missed window can foreclose rights that cannot be restored.
Your Rights in a Texas Paternity Case
Legal paternity unlocks a defined set of rights and responsibilities under Texas law. Knowing what you are entitled to is half the fight.
- Right to seek conservatorship and possession. Once paternity is established, a father has legal standing to seek orders for custody and visitation.
- Right to access records. Legal parents have defined rights to a child’s medical, dental, psychological, and educational records.
- Right to request genetic testing. A party to a paternity suit can ask the court to order genetic testing when paternity is disputed.[7]
- Right to notice and a hearing. Parties must be properly served and given the chance to appear before a paternity order is entered.
- Right to rescind an AOP. Within 60 days of signing, either parent can rescind an AOP by filing with the Vital Statistics Unit. After that, the AOP can only be challenged on narrow legal grounds such as fraud, duress, or material mistake of fact.
- Child’s right to support. A child is entitled to financial support from both legal parents. Texas courts can order retroactive child support back to an earlier point, applying guideline factors.
Common Mistakes in Texas Paternity Cases
Most paternity mistakes come from acting without understanding the long-term consequences. A handful recur often enough to name.
Signing an AOP under pressure or without certainty
Once the 60-day rescission window closes, an AOP has the legal force of a court order. Challenging it later requires proving fraud, duress, or material mistake of fact within specific time limits. If you are not certain, do not sign.
Assuming a name on the birth certificate equals legal paternity
Being listed on a Texas birth certificate is not the same as being the legal father unless paternity was established by marriage, AOP, or court order. Custody and visitation rights flow from legal paternity, not the birth certificate alone.
Waiting too long to challenge a presumption
A presumed father who waits more than four years after the child’s birth to challenge paternity is usually barred from doing so, with limited exceptions for nonaccess and fraud.
Treating the AG’s child support suit as a custody plan
When the Office of the Attorney General establishes paternity to pursue child support, the resulting order often does not include a detailed possession schedule. Fathers who want meaningful visitation need to raise it in the paternity suit or file a separate custody action.
Skipping legal counsel because “we agree”
Agreement today does not prevent disputes later. A paternity order without a clear conservatorship and possession framework can lead to years of modification and enforcement filings.
How Scott M. Brown & Associates Handles Paternity Cases in Southeast Texas
Paternity is not a form. It is the legal foundation for every parental right that follows, from custody and visitation to child support and inheritance. We handle paternity as the strategic matter it actually is.
Three of our attorneys are Board Certified in Family Law by the Texas Board of Legal Specialization, a credential held by less than one percent of Texas attorneys. Board certification is not decorative. It reflects deep familiarity with Chapter 160 of the Texas Family Code, the Office of the Attorney General’s paternity procedures, and how local judges across Brazoria, Galveston, Harris, and Fort Bend Counties decide contested paternity and related custody matters.
When you work with our team, you get:
- A clear read on which paternity pathway applies to your situation and what deadlines are running
- Representation in AOP matters, genetic testing disputes, and full paternity adjudications
- Integrated strategy that pairs paternity with conservatorship, possession, and support orders in a single plan
- Experienced courtroom advocacy when the other side will not agree, backed by a published record of results
Our offices in Angleton, Pearland, League City, and Sugar Land give us consistent standing in the courts where your case will be decided, from the Brazoria County District Courts to the Fort Bend County Justice Center. We know the judges. We know the practices.
We prepare every case as if it will be tried, which often produces stronger settlements and cleaner final orders.
Frequently Asked Questions About Paternity in Texas
Do I need a lawyer to establish paternity in Texas?
Not always. If both parents agree and sign a valid Acknowledgment of Paternity, paternity is established without a court order. But if custody, visitation, or child support are in dispute, or if genetic testing is needed, a board-certified Texas paternity attorney makes a measurable difference in the final order.
How much does a paternity test cost in Texas?
Court-ordered genetic tests are typically paid by one or both parties and can be reallocated as part of the final order. The Office of the Attorney General provides free genetic testing in many cases it opens. Private lab fees vary and are separate from court costs.
Can a father be forced to pay child support without a DNA test?
If a man signs an AOP or is legally presumed to be the father and does not timely challenge that status, yes. Child support can be ordered based on presumed or acknowledged paternity even without a genetic test.
What if the mother will not allow a paternity test?
You can file a paternity suit and ask the court to order genetic testing. Texas courts routinely order testing when paternity is in genuine dispute, and refusal to comply with a testing order can carry legal consequences.
Can paternity be established after the child turns 18?
In some circumstances, yes. Texas allows paternity suits to be filed at any time against an alleged father who is not a presumed father. Deadlines for retroactive support and inheritance claims are governed by separate rules and should be reviewed carefully.
What is the Office of the Attorney General's role in paternity?
The Attorney General’s Child Support Division can file paternity suits to establish legal fatherhood and secure child support orders, typically without charging the custodial parent for legal services. The AG represents the state’s interest in child support, not either parent.
Can I get retroactive child support once paternity is established?
Texas courts can order retroactive child support back to an earlier point in time, applying the same guideline factors used for current support.[8] In most cases, retroactive support is limited to the four years before the suit was filed, with exceptions when the father actively concealed his whereabouts or knowingly avoided establishing paternity.
Does paternity automatically give me custody or visitation?
No. Establishing paternity gives you standing to seek conservatorship and possession, but those rights must be specifically ordered by the court. Whenever possible, address custody and visitation in the same suit as paternity, or see our child custody page for the next step.
Related Family Law Topics
Divorce. Paternity can become an issue inside a divorce when a child is born during the marriage but the husband is not the biological father. Divorce in Texas
Grandparents’ Rights. A paternal grandparent’s standing to seek access often depends on whether legal paternity has been established. Grandparents’ rights in Texas
Sources
[1] Texas Family Code Chapter 160 (Uniform Parentage Act) | https://statutes.capitol.texas.gov/Docs/FA/htm/FA.160.htm
[2] Tex. Fam. Code § 160.204 (Presumption of Paternity) | https://statutes.capitol.texas.gov/Docs/FA/htm/FA.160.htm#160.204
[3] Tex. Fam. Code § 160.305 (Effect of Acknowledgment) | https://statutes.capitol.texas.gov/Docs/FA/htm/FA.160.htm#160.305
[4] Tex. Fam. Code § 160.505 (Presumption of Paternity from Genetic Testing) | https://statutes.capitol.texas.gov/Docs/FA/htm/FA.160.htm#160.505
[5] Tex. Fam. Code § 160.307 (Procedures for Rescission) | https://statutes.capitol.texas.gov/Docs/FA/htm/FA.160.htm#160.307
[6] Tex. Fam. Code § 160.607 (Limitation: Child Having Presumed Father) | https://statutes.capitol.texas.gov/Docs/FA/htm/FA.160.htm#160.607
[7] Tex. Fam. Code § 160.502 (Order for Genetic Testing) | https://statutes.capitol.texas.gov/Docs/FA/htm/FA.160.htm#160.502
[8] Tex. Fam. Code § 154.009 (Retroactive Child Support) | https://statutes.capitol.texas.gov/Docs/FA/htm/FA.154.htm#154.009
