A birth certificate is an official government record, and information about a child’s parentage can affect custody, child support, inheritance, and other legal rights. Yes, knowingly providing false information about paternity on a Pennsylvania birth certificate or related paternity acknowledgment can create legal consequences, although the exact consequences depend on who made the statement, how the information was submitted, and whether the false information was intentional.

Pennsylvania Requires a Legal Basis to List a Father
When a child is born to unmarried parents, Pennsylvania law generally provides that the father’s name may be placed on the birth record when the parents sign a voluntary acknowledgment of paternity or when a court or other authorized agency has made an adjudication of paternity.
This means a person generally should not knowingly identify a man as the biological father simply because the parties want his name listed.
Can False Information Be a Crime?
Potentially, yes. Pennsylvania’s Vital Statistics Law provides criminal penalties for a person who willfully and knowingly furnishes false information for inclusion in a certificate or record covered by the law. A violation may be prosecuted as a misdemeanor and can carry a fine of up to $1,000, imprisonment of up to six months, or both.
The requirement of knowing and willful conduct is important. A person who makes an honest mistake, misunderstands the biological relationship, or provides inaccurate information without the required criminal intent may face a different legal analysis from someone who deliberately lies.
What If a Man Signs an Acknowledgment of Paternity?
A man who knowingly signs a voluntary acknowledgment of paternity when he is not the biological father may face serious legal consequences. Pennsylvania law treats a signed acknowledgment as a legal finding of paternity, subject to specific rights to rescind or challenge it.
Under Pennsylvania law, a signatory generally may rescind an acknowledgment within the earlier of 60 days or the date of an administrative or judicial proceeding concerning the child in which the signatory is a party. After that period, a challenge generally requires clear and convincing evidence of fraud, duress, or a material mistake of fact.
Therefore, a person should not sign a paternity acknowledgment simply because another person asks them to do so.
What If the Mother Names the Wrong Father?
A mother who knowingly provides false information about the identity of the child’s father may also face legal issues. The consequences can depend on the document signed, the information provided, and whether the false statement was made under circumstances covered by Pennsylvania criminal or vital-records laws.
In addition to possible criminal consequences, deliberately identifying the wrong person as the father can create significant family-law problems. The named individual may face child-support obligations, while the biological father may be excluded from legal rights and responsibilities.
What If Someone Is Unsure About Paternity?
Uncertainty is not the same as intentionally lying. A person who genuinely does not know who the biological father is should not knowingly make a false statement. The parties may need to use the appropriate legal process to establish parentage.
Genetic testing and court proceedings may be available in appropriate circumstances. Because paternity can affect financial obligations and parental rights, obtaining legal advice before signing a formal acknowledgment can be important.
Can Paternity Be Challenged Later?
Yes, but the timing and circumstances matter. A signed acknowledgment of paternity can have significant legal effect, and a person may not be able to simply change their mind years later.
Pennsylvania law provides specific procedures for rescission and challenges based on fraud, duress, or material mistake of fact. The legal requirements can be strict, particularly after the applicable rescission period has expired.
What Are the Possible Civil Consequences?
False paternity information can lead to disputes over child support, custody, inheritance, medical history, and other legal rights. A person who was incorrectly identified as the father may seek legal relief, while a biological parent may seek to establish parentage.
In some situations, a person who intentionally caused another individual to incur financial obligations through fraudulent conduct could face additional civil claims.
The Bottom Line
Yes, knowingly lying about paternity on a Pennsylvania birth certificate or related paternity acknowledgment can be illegal and may result in criminal or civil consequences. Pennsylvania law requires a legal basis for establishing a father’s name on the birth record, and knowingly providing false information in official records can create liability.
An honest mistake or genuine uncertainty about biological paternity is different from deliberately making a false statement. Anyone who believes a birth certificate contains incorrect paternity information should seek legal advice about the appropriate process for challenging or correcting the record.
