At-Home Paternity Testing in Nevada: The 285-Day Rule, Conclusive DNA Presumptions, and Filing Until Age 21

Nevada has no restrictions on at-home paternity testing. You can order a kit, collect DNA samples at home, and mail them to a lab without a doctor's order or state approval. If you need a private answer about biological paternity, the process is available to any Nevada resident.

What makes Nevada's paternity laws stand out is a combination of features that differ from neighboring states. First, Nevada uses a 285-day post-marriage presumption window — shorter than the 300 days used by Utah and many other states. Second, Nevada's DNA threshold creates a conclusive presumption of paternity at 99% probability, which is stronger than the rebuttable presumptions most states use. And third, a paternity action in Nevada can be filed until the child reaches age 21 — giving families a longer window than the age-18 cutoff in most states. Nevada's parentage laws are found in NRS Chapter 126, which is based on the original Uniform Parentage Act.

Below we cover Nevada's paternity statutes, the marital presumption, the Voluntary Acknowledgment of Paternity and its rescission timeline, who can file a paternity action, court-ordered genetic testing, and how at-home DNA testing fits into all of it.

How Nevada Law Defines Paternity

Nevada's parentage laws are codified in Nevada Revised Statutes (NRS) Chapter 126 — Parentage. This chapter is based on the Uniform Parentage Act and covers the establishment, challenge, and legal consequences of the parent-child relationship.

Marital presumption: Under NRS 126.051(1), a man is presumed to be the natural father of a child if he and the child's mother are or were married to each other and the child is born during the marriage, or within 285 days after the marriage is terminated by death, annulment, declaration of invalidity, or divorce, or after a decree of separation is entered. The 285-day window is notably shorter than the 300-day rule used by many states, including neighboring Utah.

Other presumptions: NRS 126.051 also creates a presumption of paternity if, after the child's birth, the man and mother married each other (or attempted to) and the man voluntarily asserted his paternity — either by being named on the birth certificate with his written consent, or by promising in a record to support the child as his own. A presumption also arises if the man received the child into his home and openly held the child out as his own.

Rebutting the presumption: A presumption under NRS 126.051 can be rebutted in an appropriate action only by clear and convincing evidence. If two or more presumptions conflict — for example, if both the husband and another man qualify as a presumed father — the presumption founded on the weightier considerations of policy and logic controls.

For unmarried parents with no existing presumption, the biological father has no automatic legal rights. Paternity must be established through a Voluntary Acknowledgment, a court order, or through the child support enforcement program before the father can seek custody or visitation or be ordered to pay support.

For a broader overview of all the ways paternity can be established, see our guide on how to establish paternity.

Voluntary Acknowledgment of Paternity in Nevada

The most common way for unmarried parents to establish paternity in Nevada is through the Voluntary Acknowledgment of Paternity, governed by NRS 126.053.

Nevada hospitals provide the acknowledgment form to unmarried parents at the time of birth. Both parents sign the declaration, which is developed by the State Board of Health and filed with the Bureau of Health Planning and Statistics, Office of Vital Records. Once the rescission period expires, the signed declaration has the same effect as a court judgment determining the parent-child relationship.

Key details about Nevada's Voluntary Acknowledgment of Paternity:

• Both parents must sign voluntarily. The declaration must be notarized or witnessed and filed with the Office of Vital Records.
• No court ratification required. Once the rescission period passes, the acknowledgment carries the same legal weight as a court order — no judge needs to approve it.
• It doesn't have to happen at the hospital. If parents didn't complete the acknowledgment at birth, they can execute one later and file it directly with the Office of Vital Records.
• Once effective, it establishes full legal paternity. The man is the legal father for all purposes — child support, custody, visitation, and inheritance.
• If the mother is married to someone else, extra steps apply. The husband is the presumed father under NRS 126.051. Before an unmarried biological father can file an acknowledgment, the marital presumption typically needs to be addressed — which may require the husband to sign a denial of paternity or a court proceeding to resolve conflicting presumptions.

If you're unsure whether you should sign, consider getting a private answer first. A home paternity test costs $79 and gives you results in days. Those results won't hold up in court, but they can help you make an informed decision before signing a document that becomes legally equivalent to a court order once the rescission window closes.

Rescinding or Challenging a Paternity Acknowledgment

Signing a Voluntary Acknowledgment of Paternity in Nevada is a serious legal commitment, and the window to undo it is limited.

The 60-Day Rescission Period

Under NRS 126.053, a person who signs an acknowledgment of paternity in Nevada may rescind it within 60 days after the acknowledgment is signed by both persons. During this window, the rescission voids the acknowledgment without the need for a court proceeding.

Court Challenge After 60 Days

After the 60-day rescission period expires, the only way to challenge a Voluntary Acknowledgment of Paternity in Nevada is through a court proceeding. The person challenging it must demonstrate fraud, duress, or material mistake of fact. A DNA test showing the man is not the biological father would typically qualify as a material mistake of fact, but the burden is on the challenger to prove it in court.

Once the acknowledgment takes full legal effect (after 60 days), it is treated the same as a court judgment. Overturning it requires the same level of legal effort as challenging any other court order.

If you have doubts about biological paternity, act within those first 60 days. A home paternity test gives you a private answer in under a week — well within the rescission window. Waiting beyond 60 days means you'll need a lawyer, a court proceeding, and a higher burden of proof to challenge the acknowledgment.

Nevada's Paternity Establishment Process

When paternity can't be resolved through a voluntary acknowledgment, Nevada law provides a formal court process under NRS Chapter 126.

Who can file a paternity action in Nevada (NRS 126.071):

• The child
• The child's natural mother
• A man presumed or alleged to be the father
• An interested third party
• The district attorney (upon request of any of the above parties)

A paternity action in Nevada can be filed at any time before three years after the child turns 18 — meaning the effective deadline is the child's 21st birthday. This gives Nevada families a longer window than most states, which cut off at age 18. If the action is brought before the child's birth, all proceedings are stayed until after the birth, except for service of process and depositions to preserve testimony.

Once a paternity action is filed, the court can order genetic testing, hear testimony, and issue a determination. If the court finds the man is the father, it enters an order establishing all legal rights and obligations — custody, visitation, child support, and the right to have the father's name placed on the birth certificate.

Court-Ordered Genetic Testing in Nevada

When paternity is disputed in a Nevada court proceeding, genetic testing is governed by NRS 126.121. The court has broad authority over testing, and the DNA results carry unusual legal weight in Nevada.

The process:

• The court may order testing on its own motion, and must order testing upon any party's motion. The court can require the mother, the child, the alleged father, or any other relevant person to submit to blood typing or genetic identification tests.
• Testing must be performed by qualified physicians or other qualified persons designated by the court.
• The court can also order independent testing by other experts or qualified laboratories upon reasonable request by a party.
• Unless a party files a written objection at least 30 days before the hearing, test results are admissible as evidence without foundational testimony or other proof of authenticity or accuracy.

The 99% conclusive presumption: This is where Nevada differs significantly from many states. Under NRS 126.051(1)(e), if genetic testing shows a probability of 99% or more that the man is the father, Nevada creates a conclusive presumption of paternity. This is stronger than the rebuttable presumption used by most states (including neighboring Arizona). The only exception: the presumption can be rebutted if the man establishes that he has an identical sibling who may be the father. Outside of that narrow exception, a 99%+ DNA result settles the question in Nevada.

Refusing a court-ordered test: Under NRS 126.121, if any party refuses to submit to or fails to appear for court-ordered testing, the court may presume that the result would be adverse to the interests of that party, or may enforce its order if the rights of others and the interests of justice require it. Refusing the test in Nevada doesn't make the case disappear — it typically makes the outcome worse. For more on this topic, see our article on what happens if you refuse a paternity test.

Court-ordered testing is a different process from at-home testing. For a detailed look at what to expect, see our article on court-ordered paternity tests.

Division of Welfare and Supportive Services — Child Support Enforcement

Nevada's child support enforcement program is operated by the Division of Welfare and Supportive Services (DWSS), part of the Nevada Department of Health and Human Services. This is the state's Title IV-D child support enforcement system, administered through local child support offices across the state.

The Child Support Enforcement Program can:

• Establish paternity for children born to unmarried parents
• Arrange genetic testing when paternity is in question
• File paternity actions through the district attorney's office
• Establish, modify, and enforce child support orders
• Locate noncustodial parents and their sources of income

If the alleged father refuses to acknowledge paternity, the mother — or the DWSS if the child is receiving public assistance — can initiate a paternity action. But you do not need to be on public assistance to use the Child Support Enforcement Program. Any custodial parent can apply for services through a local child support office.

In Nevada, the district attorney also plays a role. Under NRS 126.071, upon request from the mother, alleged father, child, or interested third party, the district attorney is required to take action necessary to establish parentage.

For more on how paternity connects to child support, see our article on paternity tests for child support.

At-Home vs. Legal Paternity Testing in Nevada

Nevada places no restrictions on at-home DNA testing. Unlike New York, which requires a licensed physician to order genetic tests, Nevada allows you to purchase a home test kit, collect cheek swab samples yourself, and mail them to a lab. No doctor's order, no state approval.

But there is a clear distinction between the two types of tests:

At-home paternity test: A private test you collect yourself. You swab cheeks at home, mail the samples back, and get results in a few days. The science and accuracy are identical to a legal test. However, because there is no chain of custody — no third-party verification of who provided the samples — Nevada courts will not accept home test results as evidence. Home testing is for personal knowledge only.

Legal paternity test: Follows chain of custody protocols. A trained professional collects samples at an approved facility with government-issued ID verification, photographs, and tamper-evident packaging. The results are admissible in Nevada courts for paternity actions, child support, custody, and birth certificate amendments. Given Nevada's conclusive presumption at 99%, a legal DNA test with results at that threshold effectively ends the paternity question in court — no further argument needed.

Starting with a home test is common and practical. It's faster, private, and far less expensive than legal testing. If results confirm what you expected, you go into the legal process with solid information. If they surprise you, you can change course before spending on attorneys and court filings. We cover the differences in detail in our comparison of home vs. legal paternity tests.

How At-Home DNA Testing Works

The DNA testing process works the same way regardless of where you live:

1. Order your kit. You can order a home paternity test kit from US Diagnostics Center for $79. The kit ships to your Nevada address and includes a prepaid return envelope for mailing your samples back.
2. Collect samples. The kit includes cheek swabs for the alleged father and the child. You rub the swab on the inside of each person's cheek for about 30 seconds. No blood, no needles, no pain.
3. Mail samples back. Seal the samples in the provided packaging and drop the prepaid envelope in the mail.
4. Lab analysis. Once the lab receives your samples, processing takes 2-3 business days. Our lab analyzes up to 28 genetic markers — well above the industry standard of 20 or more markers.
5. Get your results. Results are delivered securely online. You'll see either an inclusion (99.99% or greater probability of paternity) or an exclusion (0% probability). There's no ambiguity.

The mother's sample is not required but can strengthen the analysis. A mother's kit can be added during checkout if you want to include it. Express result options are also available during checkout for faster turnaround.

Ordering a Test in Nevada

US Diagnostics Center ships nationwide, and Nevada residents can order directly from our website. There are no state-level restrictions on purchasing or using an at-home DNA test kit in Nevada. Your kit arrives in discreet packaging with everything you need to collect samples and send them back.

We are BBB Accredited with an A- rating. Our lab analyzes up to 28 genetic markers for every test, giving you a high-confidence result. If you have questions about your specific situation before ordering, our team is available through our contact page.

Frequently Asked Questions

Can I use a home paternity test in a Nevada court?

No. Nevada courts require chain of custody documentation for DNA evidence to be admissible. A home test doesn't include witnessed collection, ID verification, or tamper-evident sample handling. Home test results are scientifically accurate for personal knowledge, but they won't be accepted as evidence in any Nevada legal proceeding. You would need a legal paternity test with full chain of custody for court use.

What does "conclusive presumption" mean for DNA results in Nevada?

Under NRS 126.051(1)(e), if genetic testing shows a 99% or greater probability that a man is the father, Nevada creates a conclusive presumption of paternity. Unlike a rebuttable presumption — which can be challenged with contrary evidence — a conclusive presumption effectively ends the question. The only exception is if the man can prove he has an identical twin or identical sibling who could be the father. Outside of that narrow scenario, a 99%+ DNA result is treated as definitive in Nevada courts.

Why does Nevada use 285 days instead of 300 for the post-marriage presumption?

Nevada's NRS 126.051 presumes paternity if a child is born within 285 days after a marriage ends. This is the timeframe Nevada's legislature adopted, and it's slightly shorter than the 300-day rule used by states like Utah and many others that follow the Uniform Parentage Act more closely. The 285-day figure corresponds roughly to a standard human gestation period. The practical difference is small, but it matters if a child is born in that 15-day gap — between 285 and 300 days after a marriage ends — where the presumption would apply in Utah but not in Nevada.

How long do I have to rescind a Voluntary Acknowledgment of Paternity in Nevada?

You have 60 days after the acknowledgment is signed by both parents. During that window, you can rescind it without a court proceeding. After 60 days, the acknowledgment carries the full legal weight of a court judgment. The only way to challenge it at that point is through a court proceeding where you must prove fraud, duress, or material mistake of fact. If you have doubts, act quickly.

Can I file a paternity action in Nevada after my child turns 18?

Yes. Nevada allows paternity actions to be filed until three years after the child turns 18 — meaning the effective deadline is the child's 21st birthday. This is a longer window than most states provide. If you've been considering a paternity action but thought it was too late, you may still have time under Nevada law.

What happens if I refuse a court-ordered paternity test in Nevada?

Under NRS 126.121, if you refuse to submit to or fail to appear for court-ordered genetic testing, the court may presume that the test results would have been adverse to your interests. The court can also enforce its order directly. Refusing the test does not end the case — it makes a finding of paternity more likely, not less. For more details, see our article on what happens if you refuse a paternity test.

Related Reading

• At-Home Paternity Testing in Arizona: Laws, Presumption of Paternity, and Your Options
• At-Home Paternity Testing in Colorado: Laws, the Uniform Parentage Act, and Why Biology Isn't Always the Final Word
• Home Paternity Test vs. Legal Paternity Test: What Is the Difference?
• Court-Ordered Paternity Test: Process, Cost, Timeline, and What to Expect
• How DNA Testing Works: A Complete Step-by-Step Guide

This article is part of our Paternity Testing: The Complete Guide guide.