Louisiana Acknowledgment of Paternity Affidavit for a Child Born of Marriage (3-Party) (VR-B7)
Official state formParentage and paternityForm VR-B7Free downloadLast verified November 10, 2026
Names the biological father on the birth certificate when the mother was married to someone else at the birth or within 300 days before it. The mother, her husband or ex-husband and the biological father all sign. It is mailed to the Louisiana Vital Records Registry with a DNA report.
Who can use this form
- The mother, her husband or ex-husband (spouse or ex-spouse) and the biological father, when all three agree
- Each of the three signs before a notary and initials page 2.
- A DNA-based paternity test must show at least 99.9% probability that the man is the biological father.
- It may be filed until the child's 10th birthday.
- A minor under 16 may not sign. A minor aged 16 or 17 may sign only with judicial authorization.
What to send with it
- The original notarized affidavit completed by all three parties, with no alterations
- Notary-certified report confirming biological paternity at the 99.9% threshold
- All existing certified copies of the child's birth certificate, or a $15.00 search fee
- Copy of all three parties' valid photo ID
- The $27.50 amendment processing fee by check or money order (no cash)
- The case number if an amendment is already in progress
Where to send it
- Mail to
- Louisiana Vital Records Registry Attn: Amendments Department P.O. Box 60630 New Orleans, LA 70160
- State fee
- $27.50 amendment processing fee (includes one newly amended birth certificate and the state mail charge). $15.00 search fee if no birth certificate is sent. Optional $10.00 for a certified copy of the signed affidavit. Fees are non-refundable.
- Typical processing
- Not provided
- Form revision
- Rev 7/26
- Source
- Official government page