At-Home Paternity Testing in South Carolina: How the State's DNA Threshold Changes the Game

South Carolina 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 needing a doctor's order or any kind of state approval. If you want a private answer about biological paternity, the process is available to any South Carolina resident.

But South Carolina's paternity laws have a feature that makes DNA evidence unusually powerful in this state. Under § 63-17-40, if genetic testing shows a 95% or greater probability of paternity, the court treats that result as a conclusive presumption — not just a rebuttable one. In most states, DNA evidence creates a rebuttable presumption, meaning the other side can still try to argue against it. In South Carolina, once you hit that 95% threshold, paternity is conclusively presumed. The 95% bar is also lower than many states, which require 99% or higher. The practical effect: DNA evidence carries more legal weight in South Carolina than in most of the country.

Here's how South Carolina handles paternity, the voluntary acknowledgment process, court-ordered testing, and where at-home testing fits in.

How South Carolina Law Defines Paternity

South Carolina's paternity laws are found in South Carolina Code Title 63, Chapter 17 (§§ 63-17-10 through 63-17-100), which covers paternity and child support. These statutes create the framework for how the state determines legal fatherhood.

Marital presumption: If a child is born during a marriage, South Carolina law presumes the husband is the father. This is a common law presumption that the state has followed for generations. The husband's name goes on the birth certificate automatically, and he has full legal rights and responsibilities from birth. The presumption can be rebutted, but it requires a legal proceeding — and often genetic evidence — to do so.

Unmarried parents: When the parents are not married, there is no automatic presumption of paternity in South Carolina. The biological father must take steps to establish a legal relationship with the child. South Carolina provides two main paths: a Voluntary Acknowledgment of Paternity or a court order through a paternity action. Unlike Georgia and Tennessee, South Carolina does not require a separate legitimation process. Once paternity is established — whether by acknowledgment or court order — the father has standing to pursue custody and visitation rights.

Voluntary Acknowledgment of Paternity in South Carolina

For unmarried parents who agree on who the father is, South Carolina offers a Voluntary Acknowledgment of Paternity. This is the state's version of the federal voluntary paternity acknowledgment process.

South Carolina hospitals are required to provide the acknowledgment form to unmarried parents at the time of birth. Both the mother and the father sign the form voluntarily. Once signed and filed with the South Carolina Department of Health and Environmental Control (DHEC), Office of Vital Records, the father's name is added to the birth certificate. The acknowledgment has the same legal force as a court order establishing paternity.

Important details about the Voluntary Acknowledgment in South Carolina:

• Both parents must sign voluntarily. Neither parent can be pressured or coerced into signing. Both receive written and oral notice of the legal consequences before they sign.
• The form doesn't have to be signed at the hospital. If parents didn't complete the acknowledgment at birth, they can sign one later and file it with DHEC's Office of Vital Records.
• Once filed, it has the force of a court judgment. The father listed on the acknowledgment is the legal father for all purposes — child support, custody, visitation, inheritance.

For more on what happens at the hospital when a child is born, see our article on whether hospitals do paternity tests at birth.

Rescinding or Challenging a Paternity Acknowledgment

Signing a Voluntary Acknowledgment of Paternity is a serious legal step. South Carolina provides a window to undo it, but the rules are strict.

The 60-Day Rescission Period

Either parent can rescind (cancel) the acknowledgment within 60 days of signing it. No court hearing is required. You file a rescission with DHEC's Office of Vital Records, and the acknowledgment is voided. This 60-day window is a federal requirement under the Personal Responsibility and Work Opportunity Reconciliation Act, and South Carolina follows it.

Court Challenge After 60 Days

Once the 60-day window closes, the only way to challenge a Voluntary Acknowledgment is through the courts. The person challenging it must demonstrate fraud, duress, or material mistake of fact. "I changed my mind" or "I'm not sure anymore" won't meet the standard. You would need to present evidence — typically DNA test results — showing that the signed acknowledgment was based on incorrect information.

South Carolina courts will also weigh the child's best interests and the stability of the existing father-child relationship when deciding whether to allow a late challenge. The longer you wait, the harder it becomes to overturn an established legal paternity determination.

This is one reason some people choose to take a home paternity test before signing any legal documents. For $79, you can get a private answer about biological paternity before committing to a legal acknowledgment that becomes very difficult to undo.

South Carolina's Paternity Establishment Process

When parents cannot agree on paternity, or when paternity needs to be established for legal purposes, South Carolina allows a paternity action to be filed in family court under Title 63, Chapter 17.

Who can file a paternity action in South Carolina:

• The child's mother
• A man alleging to be the biological father
• The child, through a guardian or next friend
• The South Carolina Department of Social Services (DSS)
• A solicitor (the state's term for a prosecutor in certain civil matters)

The process begins with one party filing a complaint in family court. The court then schedules hearings, and either party — or the court itself — can request genetic testing. If testing shows a 95% or greater probability of paternity, the court will conclusively presume paternity under § 63-17-40. That's a lower bar than many states require, and it means DNA evidence is particularly decisive in South Carolina.

Once paternity is established by court order, it creates rights and obligations for both parents — including child support, custody, and visitation. The order carries the same weight as any other court judgment.

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

Court-Ordered Genetic Testing in South Carolina

When paternity is disputed, South Carolina courts can order genetic testing. Under § 63-17-50, a court can require the mother, the child, and the alleged father to submit to DNA testing as part of a paternity proceeding.

The critical detail in South Carolina is what happens with the results:

• Results showing 95% or greater probability of paternity create a conclusive presumption of paternity. This is not rebuttable — the court treats it as established fact. Most states set the threshold at 99% and make it rebuttable. South Carolina's lower threshold and conclusive standard mean that DNA evidence is about as close to a final answer as the law gets.
• The court selects the testing facility. All testing must follow proper chain of custody procedures: a trained collector handles sample collection, verifies each participant's identity with government-issued photo ID, and seals samples in tamper-evident packaging.
• Refusal has consequences. If a party refuses to submit to court-ordered genetic testing, the court can draw an adverse inference — meaning it may presume paternity based on the refusal. South Carolina courts take compliance with these orders seriously.

Court-ordered testing is separate from at-home testing. The chain of custody requirements make court-ordered results admissible as evidence. At-home test results, while scientifically identical in the lab, are not admissible because there's no documented chain of custody.

For a full breakdown of how court-ordered testing works, see our article on court-ordered paternity tests: process, cost, timeline, and what to expect.

South Carolina Department of Social Services — Child Support Services

The South Carolina Department of Social Services (DSS) operates the state's Child Support Services Division, which handles a significant share of paternity cases — especially those connected to child support enforcement.

South Carolina's child support program operates at the county level. Each county DSS office handles day-to-day case management, including paternity establishment. The state division provides oversight, policy, and statewide systems.

The Child Support Services Division 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 and enforce child support orders once paternity is confirmed

If a custodial parent applies for child support through DSS and the father hasn't been legally established, the Child Support Services Division will initiate the paternity process. This can include requesting DNA testing from the alleged father. If he refuses to cooperate, the division can take the case to court.

These services are provided at no cost to the custodial parent. For families who can't afford a private attorney, the county DSS office is usually the easiest way to establish paternity and get a support order in place. More information is available through the South Carolina DSS website.

For more on how paternity and child support connect, see our article on paternity tests for child support.

At-Home vs. Legal Paternity Testing in South Carolina

South Carolina does not restrict at-home DNA testing. Unlike New York, which requires a licensed physician to order genetic tests, South Carolina allows residents to purchase and use home test kits without any special permissions. No doctor's order, no state approval.

The one critical limitation:

At-home paternity test results are not admissible in South Carolina courts.

Home test results are considered "peace of mind" testing. They give you an accurate answer about biological paternity — the lab science is exactly the same — but because there's no chain of custody documentation, a South Carolina court won't accept them as evidence. No witnessed collection, no ID verification, no tamper-evident seals means no admissibility.

If you need results for a legal matter in South Carolina — child support, custody, contesting an acknowledgment, or adding a name to a birth certificate — you'll need a legal paternity test with full chain of custody. That means professional sample collection at an approved facility with ID verification and witnessed handling.

Many people in South Carolina start with a home test first. It costs a fraction of what legal testing runs, results come back quickly, and it helps you understand where things stand before spending money on attorneys and court proceedings. Given that DNA results carry conclusive weight in South Carolina courts at the 95% threshold, knowing what the science will show before you enter the legal arena is especially valuable. We cover this in more detail in our comparison of home vs. legal paternity testing.

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 South Carolina 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 South Carolina

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

No. South Carolina 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 South Carolina legal proceeding. You would need a legal paternity test with full chain of custody for court use.

What does "conclusive presumption" mean in South Carolina paternity cases?

Under § 63-17-40, if DNA testing shows a 95% or greater probability of paternity, South Carolina courts conclusively presume paternity. Unlike a "rebuttable presumption" — which allows the other side to argue against it — a conclusive presumption is treated as established fact. Once the DNA results cross that 95% threshold, the question of biological paternity is settled. This makes DNA evidence unusually powerful in South Carolina compared to states that use a rebuttable standard or a higher threshold.

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

You have 60 days from the date of signing to rescind the acknowledgment without going to court. After 60 days, the only way to challenge it is by filing a court action and proving fraud, duress, or material mistake of fact. South Carolina courts will also consider the child's best interests — the longer you wait, the harder it becomes to overturn the acknowledgment.

Does South Carolina DSS provide free paternity testing?

The South Carolina Department of Social Services, Child Support Services Division, can arrange genetic testing as part of a child support case at no cost to the custodial parent. If you apply for child support through DSS and the father hasn't been legally established, the division can initiate paternity proceedings, arrange DNA testing, and pursue a support order on your behalf.

Why is South Carolina's 95% threshold significant?

Many states require 99% probability or higher before DNA evidence creates a legal presumption of paternity, and even then, the presumption is typically rebuttable. South Carolina sets the bar at 95% and makes the presumption conclusive — meaning it can't be argued against once established. Modern DNA tests routinely produce results well above 99.99% for true biological fathers, so the threshold is easily met. But the conclusive (rather than rebuttable) nature of the presumption is what makes South Carolina's standard uniquely decisive.

What happens if someone refuses a court-ordered paternity test in South Carolina?

Refusing a court-ordered DNA test in South Carolina can result in an adverse inference — meaning the judge can presume paternity based on the refusal. Courts take compliance seriously, and refusal typically works against the person who refuses. For more on this, see our article on what happens if you refuse a paternity test.

Related Reading

• Home Paternity Test vs. Legal Paternity Test: What Is the Difference?
• Court-Ordered Paternity Test: Process, Cost, Timeline, and What to Expect
• At-Home Paternity Testing in North Carolina: Laws, Process, and Your Options
• At-Home Paternity Testing in Georgia
• How DNA Testing Works: A Complete Step-by-Step Guide

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