Voluntary Acknowledgment of Paternity: Signing, Effects, and Rescission

A voluntary acknowledgment of paternity is a signed legal document that establishes a father-child relationship when the parents are not married. Under federal law, once both parents sign and the state files it, the acknowledgment carries the same weight as a court judgment of paternity.¹ That makes it one of the most consequential documents an unmarried parent will ever sign, and the window to undo it is short.

What You Give Up By Signing

When you sign, you waive your right to request genetic testing and your right to have a court determine paternity. If there is any doubt about biological parentage, get a DNA test first. Court-admissible genetic testing typically costs $350 to $375, which is small compared to the legal consequences of signing a document you later want to undo.

Federal law requires every state to give both parents specific information before they sign: a clear explanation of the legal consequences, the alternatives (such as genetic testing or a court proceeding), and the rights and responsibilities that come with signing. If either parent is a minor, the notice must also cover any protections the state provides to minors in this situation.¹ The notice is written and oral. Read it. Ask questions before you sign, not after.

Where and How to Sign

Most parents sign at the hospital shortly before or after the child is born. Federal law requires every state to operate a hospital-based voluntary paternity program aimed at exactly this window.¹ Hospital staff walk you through the form and witness the signatures while both parents are in the same place.

If you don’t sign at the hospital, the form is available afterward through your state’s vital records agency or local health department. Both parents must sign in the presence of a witness or notary public. Notary fees for an acknowledgment range from roughly $0.50 to $15 depending on your state, though many vital records offices provide witnessing at no charge.² Check the spelling of names and every number before you sign. Errors can delay processing and cause problems later when you need the birth certificate for school enrollment, a passport, or benefits.

Once the form is filed and the state registrar verifies it, the father’s name is added to the child’s birth certificate. Without either a signed acknowledgment or a court order, the father’s name cannot be added to the birth record of an unmarried parent’s child.¹

What the Signed Document Legally Does

A filed acknowledgment is a legal finding of paternity. It is not a preliminary step. It has the same force as a court judgment that the man is the child’s legal father, and that triggers several concrete consequences:

Either parent can petition for a child support order. The obligation to support the child exists once paternity is established, whether or not a court has set a payment amount yet. Failure to pay court-ordered support can lead to wage garnishment and tax refund interception, among other enforcement measures.
The child gains the right to inherit from the father under state intestacy laws, and the father gains the right to inherit from the child.
The child becomes eligible for Social Security survivor benefits if the father dies or becomes disabled, provided the acknowledgment was signed during the father’s lifetime. The child may also qualify for veterans’ benefits, workers’ compensation death benefits, and life insurance payouts tied to the father.³
The father gains the right to receive notice of legal proceedings involving the child, including adoption petitions. Without established paternity, a father can lose parental rights without ever being notified.
Federal law requires every state to give full faith and credit to a paternity determination made in any other state. If you move, your acknowledgment travels with you.¹

What It Does Not Do

Signing does not give the father custody or visitation. The acknowledgment establishes that he is the legal father; parenting time and decision-making authority require a separate court order. Until a court rules otherwise, the mother of a child born outside of marriage is typically the sole custodial parent. A father who signs the acknowledgment but never petitions for custody or visitation may end up with the financial obligations of parenthood but none of the practical rights.

If you are a father who wants to be part of your child’s life, signing is the necessary first step, and only the first step. Follow up by filing a custody or visitation petition in family court, or work out a written parenting agreement with the other parent. An informal handshake arrangement has no legal force if the relationship breaks down later.

When the Mother Is Married to Someone Else

A voluntary acknowledgment generally cannot be used when the mother is married, because most states presume her husband is the child’s legal father. That marital presumption has to be dealt with before a biological father can establish paternity through the voluntary process. The 2017 Uniform Parentage Act, which a growing number of states have adopted, allows an acknowledgment to go forward only if the child has no presumed parent, or if a presumed parent’s paternity is being actively challenged by the acknowledgment itself. Under the Act, a presumed parent can file a denial of parentage alongside the biological father’s acknowledgment, which clears the way.

If the husband is unwilling to sign a denial, or if state law does not allow a voluntary resolution when a presumed father exists, the biological father’s only option is a court proceeding. The court can order genetic testing and, if the results confirm biological parentage, enter a judgment overriding the marital presumption. That path is slower and more expensive, but sometimes it is the only one available.

Rescinding Within 60 Days

If you change your mind after signing, you have a short window to withdraw the acknowledgment without any court involvement. Federal law sets the rescission period at 60 days from the date of signing. The window can be cut short if either parent files a legal proceeding involving the child (such as a support case) before those 60 days run out.¹ To rescind, you file a written request or a state-specific rescission form with the vital records agency that processed the original acknowledgment. No court appearance is needed, and you do not have to explain why.

Once the rescission is processed, the acknowledgment is void and the father’s name is removed from the birth certificate. If either parent later wants to establish paternity, they will need to start over through a court proceeding or a new voluntary acknowledgment.

Challenging After 60 Days

After the rescission window closes, the bar rises sharply. You can no longer simply change your mind. A court will set aside a signed acknowledgment only if you prove fraud, duress, or a material mistake of fact.¹ The burden falls entirely on the person challenging the acknowledgment, and child support obligations continue during the challenge unless a judge finds good cause to suspend them.

Most post-deadline challenges involve a man who discovers through DNA testing that he is not the biological father. Whether a DNA result alone qualifies as a material mistake of fact depends on the state. Some states require you to first prove by clear and convincing evidence that a genuine mistake occurred before the court will even order or consider genetic test results. Others allow you to present DNA evidence directly as proof of the mistake. State statutes rarely define these terms precisely, which leaves judges significant discretion.

Fraud typically means the other parent actively lied about a material fact, such as the mother knowing the man was not the biological father and concealing that information. Duress means you were pressured or threatened into signing against your will. Both are hard to prove, especially years after the fact. Legal fees for these proceedings are substantial, and outcomes are uncertain even with strong evidence. The system is built to prioritize the child’s stability once paternity has been established, so courts are reluctant to undo an acknowledgment a child has relied on for years.

Citizenship for Children Born Abroad

If a U.S. citizen father has a child born abroad to a non-citizen mother outside of marriage, the father must acknowledge paternity in writing under oath and agree to provide financial support until the child turns 18. A voluntary acknowledgment of paternity can satisfy the written acknowledgment requirement, but only if it was signed in a jurisdiction where the acknowledgment legally obligates the father to provide financial support.⁴ The application for a Consular Report of Birth Abroad must be filed before the child’s 18th birthday.⁵

If the consular officer has reason to doubt the biological relationship, DNA testing may be required regardless of the signed acknowledgment. Do not assume a domestic acknowledgment automatically resolves immigration questions. Contact the nearest U.S. embassy or consulate early to confirm what documentation they need.

1
Office of the Law Revision Counsel. 42 USC 666 – Requirement of Statutorily Prescribed Procedures to Improve Effectiveness of Child Support Enforcement
2
U.S. Government Publishing Office. Paternity Establishment – Notification of Rights and Responsibilities For Voluntary Paternity Acknowledgment
3
Social Security Administration. 20 CFR 404.355 – Meaning of Child
4
U.S. Citizenship and Immigration Services. USCIS Policy Manual Volume 12, Part H, Chapter 3 – U.S. Citizens at Birth (INA 301 and 309)
5
U.S. Department of State Foreign Affairs Manual. 7 FAM 1440 – Consular Report of Birth of a Citizen of the United States of America