At-Home Paternity Testing in Indiana: Laws, Process, and What You Need to Know

Indiana has no restrictions on at-home paternity testing. You can order a kit online, collect DNA samples at home, and mail them to a lab without a doctor's order or any state-level permission. If you want a private answer about biological paternity, the process is available to anyone in the state.

What sets Indiana apart is its Paternity Affidavit process and the rules that kick in after you sign one. Indiana law gives parents 60 days to rescind a Paternity Affidavit — the same window most states allow. But what happens after those 60 days is where Indiana gets specific. Once the rescission period closes, the only way to challenge the affidavit is through a court action, and the person challenging it must prove fraud, duress, or material mistake of fact. Indiana courts have been clear that simply discovering you're not the biological father, on its own, may not be enough after the window closes. The state prioritizes the child's established legal relationships, which makes what you do inside those first 60 days especially important.

This guide covers Indiana's paternity laws under IC 31-14, how the Paternity Affidavit works, how to challenge or rescind one, and where at-home DNA testing fits into all of it.

How Indiana Law Defines Paternity

Indiana's paternity laws are found in Indiana Code Title 31, Article 14 (IC 31-14). This is the section of the code that covers how paternity is established, contested, and enforced in the state.

Marital presumption: If a child is born during a marriage, Indiana law presumes the husband is the biological father. This presumption also applies if the child is born within 300 days after the marriage is dissolved. The presumed father has all the legal rights and obligations of a parent from the start — custody, visitation, child support, and inheritance. Overturning the marital presumption requires a legal proceeding and typically DNA evidence.

For unmarried parents, there is no automatic presumption of paternity. The biological father must take steps to establish a legal relationship with the child. Indiana provides two main paths: signing a Paternity Affidavit or going through the court system under IC 31-14. For a general overview of all the ways paternity can be established, see our guide on how to establish paternity.

Voluntary Paternity Affidavit in Indiana

The most common way for unmarried parents to establish paternity in Indiana is through the Paternity Affidavit, governed by IC 16-37-2-2.1.

Indiana hospitals are required to provide the Paternity Affidavit form to unmarried parents at the time of birth. Both parents sign it voluntarily. The signed affidavit is filed with the Indiana State Department of Health, and the father's name is added to the birth certificate. Once filed, the affidavit creates a legal presumption of paternity that carries the force of a court order.

Key details about Indiana's Paternity Affidavit:

• Both parents must sign voluntarily. Neither parent can be coerced. Both receive notice of the legal consequences before signing.
• It doesn't have to happen at the hospital. If parents didn't complete the affidavit at birth, they can execute one later and file it with the Indiana State Department of Health.
• Once filed, it has the same legal effect as a court order. The man listed on the affidavit is the legal father for all purposes — child support, custody, visitation, inheritance.
• The father does not have to be present at the birth. The affidavit can be signed and filed after the fact.

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 putting your name on a legal document that becomes very difficult to undo.

Rescinding or Challenging a Paternity Affidavit

Signing a Paternity Affidavit in Indiana is a serious legal step. The state does provide a way to undo it, but the rules are strict and the deadlines matter more here than in many other states.

The 60-Day Rescission Period

Either parent can rescind the Paternity Affidavit within 60 days of the date it was executed. This is a federal requirement under 42 U.S.C. § 666(a)(5)(D)(ii) that applies nationwide, and Indiana follows it. During this window, you file a rescission with the Indiana State Department of Health, and the affidavit is voided. No court hearing is needed.

Court Challenge After 60 Days

Once the 60-day window closes, the only way to challenge a Paternity Affidavit in Indiana is through a court proceeding. The person challenging it must demonstrate fraud, duress, or material mistake of fact.

This is where Indiana's approach deserves attention. Indiana courts have taken a firm position on post-rescission challenges. Simply obtaining a DNA test that shows the man is not the biological father is not automatically sufficient to overturn an established affidavit after the 60-day period. The court will weigh factors beyond biology — including the length of the father-child relationship, the child's reliance on that relationship, and the child's best interests. Indiana law prioritizes stability for the child once legal paternity has been in place for a significant period.

The practical takeaway: if you have any doubts about biological paternity, the time to act is inside those first 60 days. A home paternity test can give you a private answer in less than a week. Waiting months or years makes the legal path significantly harder and more expensive.

Indiana's Paternity Establishment Process

When paternity can't be resolved through a voluntary affidavit, Indiana law provides a formal court process under IC 31-14-5.

Who can file a paternity action in Indiana:

• The child's mother
• A man claiming to be the biological father
• The child or the child's guardian or representative
• The Indiana Department of Child Services (DCS), typically in connection with a child support case
• The prosecuting attorney

Under IC 31-14-5-3, a paternity action can be filed at any time before the child reaches the age of majority, or within two years after the child reaches 18 if the child brings the action. There is no statute of limitations that prevents a mother or the state from filing during the child's minority.

Once a paternity action is filed, the court can order genetic testing, take testimony, and issue a determination. If the court finds that the man is the biological father, it will enter a paternity order. That order establishes 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 Indiana

When paternity is disputed in an Indiana court proceeding, genetic testing becomes central. Under IC 31-14-6, the court has authority to order the mother, the child, and the alleged father to submit to genetic testing.

Here's how it works:

• Any party to the paternity action can request genetic testing, and the court can order it on its own motion.
• Testing is performed by an accredited laboratory following chain of custody procedures. Samples are collected at an approved facility with ID verification, photographs, and documented handling.
• If the test results show a probability of paternity of 99% or greater, Indiana law creates a rebuttable presumption that the man is the father.
• The results go directly to the court and are admissible as evidence.

Refusing a court-ordered test: If someone refuses to submit to court-ordered genetic testing in Indiana, the court can draw an adverse inference. That means the judge can presume paternity based on the refusal. The court can also hold the person in contempt. Refusing the test doesn't make the case disappear — it typically makes the outcome worse for the person who refused.

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.

Indiana Child Support Bureau

Indiana's child support program operates under the Indiana Department of Child Services (DCS) through the Title IV-D Child Support Bureau. The IV-D program is the federally mandated child support enforcement system, and Indiana's version is administered at the county level through local prosecuting attorneys' offices.

The Child Support Bureau can:

• Establish paternity for children born to unmarried parents
• Arrange genetic testing when paternity is in question
• File paternity actions on behalf of the state
• Establish, modify, and enforce child support orders

If a custodial parent applies for child support and the father hasn't been legally established, the IV-D program will initiate the paternity process. This typically includes requesting genetic testing from the alleged father. If he doesn't cooperate, the case moves to court.

These services are available at no cost to the custodial parent in IV-D cases. For Indiana residents who can't afford a private attorney, the Title IV-D program is often the most practical path to establishing paternity and getting a support order in place. Information is available through the Indiana DCS website or your county prosecuting attorney's office.

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 Indiana

Indiana places no restrictions on at-home DNA testing. Unlike New York, which requires a licensed physician to order genetic tests, Indiana 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 — Indiana 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 Indiana courts for paternity actions, child support, custody, and birth certificate amendments.

Many people start with a home test. It's faster, more private, and costs a fraction of what legal testing runs. If the results confirm what you expected, you go into any legal process better informed. If they surprise you, you can adjust your plans before spending money 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 is the same whether you're in Indiana or anywhere else in the country:

1. Order your kit. You can order a home paternity test kit from US Diagnostics Center for $79. The kit ships to your Indiana 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 Indiana

US Diagnostics Center ships nationwide, and Indiana residents can order directly from our website. There are no state-level restrictions on purchasing or using an at-home DNA test kit in Indiana. 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 an Indiana court?

No. Indiana 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 accurate for personal knowledge, but they won't be accepted as evidence in any Indiana legal proceeding. You would need a legal paternity test with full chain of custody for court use.

How long do I have to rescind a Paternity Affidavit in Indiana?

You have 60 days from the date the affidavit was executed. During that window, you can file a rescission with the Indiana State Department of Health and the affidavit is voided — no court hearing needed. After 60 days, the only way to challenge it is through a court proceeding where you must prove fraud, duress, or material mistake of fact. Indiana courts take a strict approach after the rescission window closes, so act quickly if you have doubts.

What happens if I signed a Paternity Affidavit and later found out I'm not the biological father?

If you're still within the 60-day rescission period, file a rescission immediately. If the 60 days have passed, you'll need to file a court action challenging the affidavit. You must show fraud, duress, or material mistake of fact. Be aware that Indiana courts weigh factors beyond DNA results — including how long the father-child relationship has existed and the child's best interests. A DNA test showing non-paternity is important evidence, but it may not be enough on its own if significant time has passed.

Who can file a paternity action in Indiana?

Under IC 31-14-5, the mother, a man claiming to be the biological father, the child (through a guardian or representative), the Indiana Department of Child Services, or the prosecuting attorney can file a paternity action. The action can be filed at any time before the child reaches the age of majority.

Does Indiana's Title IV-D program provide free paternity testing?

In IV-D child support cases, yes. The Child Support Bureau, operating under the Indiana Department of Child Services, can arrange genetic testing at no cost to the custodial parent as part of establishing paternity for a child support order. Contact your county prosecuting attorney's office or the Indiana DCS to start the process.

Can someone refuse a court-ordered paternity test in Indiana?

Technically, yes, but there are consequences. Under IC 31-14-6, if someone refuses to submit to court-ordered genetic testing, the court can draw an adverse inference — meaning the judge can presume paternity based on the refusal. The court can also hold the person in contempt. Refusing a court-ordered test in Indiana almost always works against the person who refuses.

Related Reading

• Home Paternity Test vs. Legal Paternity Test: What Is the Difference?
• Court-Ordered Paternity Test: Process, Cost, Timeline, and What to Expect
• Do Hospitals Do Paternity Tests at Birth?
• How DNA Testing Works: A Complete Step-by-Step Guide
• At-Home Paternity Testing in Ohio: Laws, Process, and What You Need to Know

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