Adding a Father to a Birth Certificate: DNA Test Required?
Published February 4, 2026 · Medically reviewed by the partner laboratory's medical director, AABB-accredited relationship-testing laboratory
In most states, adding a father to a birth certificate after birth requires either a signed Voluntary Acknowledgement of Paternity (VAP) from both parents or, if either parent disputes it, an AABB-accredited legal DNA paternity test. If the mother was married to another man at the birth, a court order (based on a legal DNA test) is almost always required.
Uncontested cases: VAP is enough
If both parents agree and the mother was unmarried at birth, most states accept a Voluntary Acknowledgement of Paternity (VAP) without DNA testing. File through vital records and pay a small amendment fee.
Ready to move forward? Order our $99 at-home test — AABB-accredited, results in 1–2 business days.
Contested or complex cases
If either parent disputes paternity or the mother was married to another man at birth (marital presumption), a court order based on AABB-accredited DNA testing is required. This is what our $249 Legal Paternity Test provides.
The amendment process
After paternity is legally established, submit the certified DNA report plus a birth certificate amendment application to your state's vital records office. Timelines vary from 2 weeks to 3 months.