Blog Articles and Resources

Book an Initial Call

Paternity 101

• POSTED ON: July 8, 2020

Families are becoming less and less defined by tradition, which means the number of children born outside of a marriage are increasing. 

When a child is born outside of a marriage, there are different legal rights and presumptions that apply. How paternity is established is one of these differences between children born to a married couple and children born to an unmarried couple.

Paternity can be established three different ways: 

  1. Presumption of Paternity.
    Presumption of Paternity is a fancy way of saying the parties have signed a sworn affidavit that they believe the man to be the biological father of the child and the father is attesting to the same.

    This paternity affidavit can be signed at the hospital or any time before the child turns 18.

    Once this is signed, the affidavit is submitted to the state and the father’s name is reflected on the birth certificate. 
  2. Presumption of Legitimacy.
    Presumption of Legitimacy is similar to the presumption of paternity. It is a fancy way of saying that the state assumes that any child born during or immediately after a marriage is the biological child of the spouse in the marriage.

    The spouse’s name automatically goes on the birth certificate and child support may be collected if the parties are not in the same household.

    Paternity Contest.
    In 2013, South Dakota passed legislation that allowed either parent or a third party believing to be the biological father of a minor child to contest paternity. Prior to 2013, a biological parent only had 90 days from paternity establishment to contest the paternity of a minor child. After that 90 days had passed, the child was stuck with whatever biological parent was on his or her birth certificate. 
  3. Why is establishing paternity important?
    If mom is getting benefits from the Department of Social Services and has not established paternity and does not want to establish paternity for purposes of child support, the Department terminates benefits, including medical and SNAP. This often forces unmarried mothers to establish paternity.

    Further, it is necessary to establish paternity in order to receive child support. Although some arrangements are less formal, they often lead to expensive litigation if not documented properly or if the agreement does not comply with state law. At the end of the day, the state’s job is to protect the child. Therefore, they will reinforce parental obligations when possible to ensure the child is well cared for, both financially and physically.

If you have any questions about paternity or how to establish child support, call our family law team at 605-777-1772.

Be informed.

This is not what you do every day. It is what we do. Let us help provide the resources you need to make an informed decision.


Get Educated


We’re ready to start this journey with you.
Contact us to schedule a consultation.


Get in Touch - Book a Call

Our Office

5019 S. Bur Oak Place
Sioux Falls, SD 57108

 [email protected]
M–TH:  8:30 a.m. – 5:00 p.m.
F: Reserved for Family & Friends
S-S:  Reserved for Family & Friends
Privacy Policy
Attorney Advertising. This website is designed for general informational use only. The information on this site should not be construed to give specific legal advice and your use of this site does not form an attorney/client relationship. View Our Privacy Policy