Frequently Asked Questions
How is paternity established in Illinois?
Illinois recognizes several methods under 750 ILCS 46: Voluntary Acknowledgment of Paternity (VAP) signed at birth, genetic testing, presumption of parentage through marriage, and court adjudication. Each method has different legal implications and timeframes for challenge.
Can I challenge paternity after signing a VAP?
Very limited. The VAP can be rescinded within 60 days. After that, challenge requires proving fraud, duress, or material mistake of fact-and must occur within 2 years of the child's birth. Courts prioritize the child's established relationship over biological truth.
What rights does establishing paternity create?
Once paternity is established, the father has equal rights to seek custody and parenting time. It also creates child support obligations, inheritance rights, access to medical history, and potential liability for educational expenses under Section 513.
Written by Jonathan D. Steele
Chicago divorce attorney with cybersecurity certifications (Security+, ISC2 CC, Google Cybersecurity Professional Certificate). Illinois Super Lawyers Rising Star 2016-2025.
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