Nevada law does not create a separate custody system for unmarried parents. NRS 125C.0015 says the parent-child relationship extends equally to every child and every parent “regardless of the marital status of the parents,” and that until a court orders otherwise, each parent has joint legal and joint physical custody. The practical difference for unmarried parents is a threshold step: the father’s legal parentage must be established — by presumption, voluntary acknowledgment, or court order — before he can enforce custody rights, and until then a statute allows courts to place primary physical custody with the mother in specific circumstances.

What does the statute actually say about unmarried mothers and fathers?

This is one of the most misquoted areas of Nevada family law, so it is worth stating precisely. Two provisions work together:

  • The default rule. Under NRS 125C.0015(2), if no court has made a custody determination, each parent — married or not — has joint legal custody and joint physical custody until a court orders otherwise. Nevada law does not say that an unmarried mother automatically has sole custody in all cases.
  • The out-of-wedlock provision. NRS 125C.003(2) says a court may award primary physical custody of a child born out of wedlock to the mother if three things are all true: (1) she has not married the father; (2) no court judgment or order establishing his paternity has been entered; and (3) the father either is not subject to any presumption of paternity under NRS 126.051, has never acknowledged paternity under NRS 126.053, or knew he was the father but abandoned the child. The same subsection lets a court award primary physical custody to the father if the mother abandoned the child and he has provided sole care and custody in her absence. “Abandoned” is defined: failing for at least six continuous months to provide substantial personal and economic support, or knowingly declining for at least six continuous months to have any meaningful relationship with the child.

Put together: the statute makes joint custody the default for every parent, but where paternity has never been established and the father has not stepped forward (or has abandoned the child), NRS 125C.003 gives courts a basis to award the mother primary physical custody. Once paternity is established, that basis disappears and the ordinary custody rules apply.

How is paternity established in Nevada?

NRS Chapter 126 (Nevada’s parentage act) provides several routes, and NRS 126.041 lists how the parent-child relationship may be established for both mothers and fathers:

  • Presumptions of paternity — NRS 126.051. A man is presumed to be the father if, among other situations: he and the mother are or were married and the child was born during the marriage or within 285 days after it ended; he and the mother cohabited for at least six months before conception and through the period of conception; or, while the child is a minor, he received the child into his home and openly held the child out as his own. A genetic test showing a 99% or greater probability of paternity creates a conclusive presumption (rebuttable only by evidence of an identical sibling). Other presumptions can be rebutted only by clear and convincing evidence.
  • Voluntary acknowledgment — NRS 126.053. Both parents can sign a State-approved declaration acknowledging paternity or parentage — commonly done at the hospital after birth. After a short window, the signed declaration has the same effect as a court judgment establishing the parent-child relationship, without any court ratification. A signer may rescind within 60 days of both signatures (or before the first court or administrative proceeding involving the child, whichever comes first). After that, the acknowledgment can be challenged only for fraud, duress, or material mistake of fact — and the challenger bears the burden of proof.
  • A court (or administrative) action — NRS 126.071. The child, the mother, a man presumed or alleged to be the father, or an interested third party may bring an action to declare that the father-child relationship exists or does not exist. On request of any of those people, the district attorney must take the action necessary to establish parentage — Nevada’s child support enforcement program handles many paternity cases this way. Under NRS 126.121, the court may order genetic testing, and must order it on a party’s motion; a party who refuses testing risks the court presuming the result would have been unfavorable. NRS 126.081 gives these actions a long runway: a paternity action is not barred until three years after the child reaches the age of majority.

What happens once parentage is established?

The unmarried-parent distinction evaporates. Custody between legal parents is decided under the same statutes that govern divorcing parents: the child’s best interest is the sole consideration under NRS 125C.0035, with the same statutory factor list, the same presumption favoring joint legal custody, the same preference for joint physical custody, and the same domestic-violence presumption. No preference may be given to a parent solely for being the mother or the father. The full framework — legal versus physical custody, joint versus primary, parenting plans and relocation — is described in how child custody works in Nevada.

One procedural note: unmarried parents get custody orders from the district court through a custody or paternity case rather than a divorce case, but the resulting orders have the same force, are modifiable on the same terms, and carry the same relocation rules.

Does child support depend on the parents having been married?

No. NRS 125B.010 states that the support chapter applies to “all parents of all children,” and NRS 125B.020 spells out the duty of parents to provide their child necessary maintenance, health care, education, and support — adding expressly that the obligation applies to children born out of wedlock. The statute also makes the father liable for the expenses of the mother’s pregnancy and confinement. Once parentage is established, support for the child of unmarried parents is calculated under the same NAC Chapter 425 guidelines used in every other case — the tiered percentages of gross income explained in how child support is calculated in Nevada — and it ends at the same statutory cutoffs described in when child support ends in Nevada.

The sequence Nevada law sets out for unmarried parents is therefore short: establish parentage (by acknowledgment, presumption, or court order), then custody and support follow the same best-interest and guideline rules that apply in a Nevada divorce.