Family Law Questions? Ask a Family Lawyer Online.
Hello and welcome! My name is ***** ***** I will try my level best to help with your situation or get you to someone who can.
If the children are under 2 year old you can file a formal paternity action in the local family court to have a judge order a DNA test for each child. If you are confirmed not to be the father, the judge would terminate any support order for any future support. As for past support, the burden would have been on you to confirm paternity before agreeing to any non-court ordered support or to request a DNA test if you were court ordered due to being in on the birth certificates.
But once they are over 2, the statute of limitations to challenge paternity would have passed (CA Civil Code 7575).
""(3) (A) The notice of motion for genetic tests under this section may be filed not later than two years from the date of the child's birth by a local child support agency, the mother, the man who signed the voluntary declaration as the child's father, or in an action to determine the existence or nonexistence of the father and child relationship pursuant to Section 7630 or in any action to establish an order for child custody, visitation, or child support based upon the voluntary declaration of paternity.""