Being named as the father of a child you do not believe is yours can put you in a difficult situation. The financial obligations are significant, and the emotional weight is even heavier. If you are facing a false paternity claim in Illinois, you have legal options, including:
- Filing a claim in court to contest paternity
- Requesting genetic (DNA) testing to determine or challenge biological parentage
- Challenging the accuracy of a Voluntary Acknowledgment of Paternity
- Working with an experienced family law attorney who can build your defense
At Goodman Law Firm, we help clients across Cook and DuPage counties establish and defend paternity claims. With over 20 years in private practice, attorney Cameron Goodman brings the litigation experience and personal attention each case deserves, including difficult paternity-related cases.
When Do False Paternity Claims Come Up?
Paternity disputes rarely happen at convenient moments. They tend to surface during other stressful life events, including:
- Child support proceedings, where one party seeks financial support from an alleged father.
- Custody or parenting time disputes, where parentage must be settled before rights are assigned.
- After a Voluntary Acknowledgment of Paternity was signed under pressure, confusion, or false information.
- Divorce cases, when a husband questions whether he is the biological father of a child born during the marriage.
How Is Paternity Established in Illinois?
Under Illinois law, paternity (also referred to as parentage) can be established in several ways:
- Presumption of parentage, which applies when a child is born during a marriage or civil union
- A Voluntary Acknowledgment of Paternity (VAP), a legal document both parents sign to confirm fatherhood (outside of marriage or a civil union)
- A court order, often based on the results of genetic testing
- An administrative order through the Illinois Department of Healthcare and Family Services
Once paternity is established, the father gains rights to parenting time and decision-making authority. He also takes on obligations, most notably the duty to financially support the child. Because those consequences are lasting, contesting an inaccurate claim early is critical.
What Can You Do to Contest a Paternity Claim?
If you believe a paternity claim against you is false, several defenses may be available:
- Submit a petition to the court. Filing a motion in court officially starts the process of challenging the claim.Â
- Request DNA testing. Genetic testing is a reliable way to confirm or disprove biological parentage, and courts regularly use these results in deliberations.
- Challenge a signed VAP. If you signed a Voluntary Acknowledgment of Paternity based on fraud, duress, or a material mistake of fact, you may be able to rescind or challenge it. Illinois law imposes strict time limits to do so, so speed matters if this is the case.
- Meet all filing deadlines. Paternity actions are governed by statutory timeframes. Missing a deadline can cost you the right to contest the claim altogether.
- Retain experienced counsel. A knowledgeable family law attorney can evaluate your situation, explain your options in plain language, and advocate for your interests in court.
The right strategy depends on the facts of your case. What works in a divorce dispute may differ from what works in a child support proceeding.
Protect Your Rights With Goodman Law Firm
False paternity claims carry real financial, legal, and emotional consequences. Fortunately, Illinois law gives you clear paths to contest them, from DNA testing to challenging a wrongly signed acknowledgment. The key is to act quickly and with informed guidance before important deadlines pass.
You do not have to face this alone. At Goodman Law Firm, we offer straightforward guidance and a legal strategy tailored to your situation. If you are dealing with a paternity dispute in Oak Brook, Naperville, Wheaton, or Chicago, we encourage you to schedule a consultation today.


