Accredited U.S. Laboratory
Testing is performed by an AABB-accredited laboratory in the United States.
Reliable DNA Testing for Paternity and Family Relationships
Accurate, Confidential DNA Testing You Can Trust
PaternityUSA provides DNA testing for paternity and family relationships using advanced Short Tandem Repeat (STR) analysis and established laboratory quality-control procedures. Every test is processed by an AABB-accredited, U.S.-based partner laboratory, with results reported for either private at-home use or legal testing performed under chain-of-custody requirements.
25+ Years of Service
For more than 25 years, we have helped families arrange paternity and relationship DNA testing nationwide.
46 Marker Testing
Higher marker testing may provide stronger statistical support in certain complex relationship cases.
Fast, Private Results
Results are delivered promptly with confidential handling of samples and secure reporting throughout the testing process.
How Does PaternityUSA DNA Testing Compare?
Relationship DNA testing can vary based on the number of markers analyzed, the participants included, and the type of relationship being evaluated. PaternityUSA offers both standard and expanded marker options, including 46-marker testing for certain complex cases such as sibling, avuncular, and grandparent DNA testing, where additional markers may improve statistical confidence.
Our 34 Marker Test
$125
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24-34
Marker Count
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FREE
mom inclusion
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High
Conclusiveness
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FREE
2-Way Shipping
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Our 46 Marker Test
$175
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46
Marker Count
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Extra Fee
for mom inclusion
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Highest
Conclusiveness
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FREE
2-Way Shipping
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Typical Competitors
Up to $299
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16-22
Marker Count
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Extra Fee
for mom inclusion
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Variable
Conclusiveness
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Variable Pricing
on 2-Way Shipping
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Paternity, Sibling, and Family DNA Testing Kits
Professional DNA Testing for Clear, Confident Answers
Each DNA test is performed by an AABB-accredited U.S. laboratory using Short Tandem Repeat (STR) analysis. Statistical likelihood ratios are calculated using validated genetic analysis software commonly used in forensic and relationship DNA testing to generate a report that supports or does not support the claimed biological relationship. In DNA testing, statistical strength can vary depending on the relationship tested, the number of markers analyzed, and whether additional family members are included.
Home Avuncular DNA Test
Our (Aunt/Uncle) Avuncular DNA Test helps determine whether a biolog…
Starting at
$125.00
Home Grandparent DNA Test
Our Grandparent DNA Test helps determine whether a biological relati…
Starting at
$125.00
Home Sibling DNA Test
Our Sibling DNA Test helps determine whether two individuals share o…
Starting at
$125.00
Legal Sibling DNA Test
The Legal Sibling DNA Test determines whether two individuals share …
Starting at
$245
Legal Paternity DNA Test
The Legal Paternity DNA Test confirms a biological father–child rela…
Starting at
$195
Home Family Reconstruction DNA Test
The Home Family Reconstruction DNA Test helps determine a biological…
Starting at
$325.00
Legal DNA Profile Test
The Legal DNA Profile Test creates a verified genetic profile for id…
Starting at
$275.00
Home DNA Profile Reporting Test
The Home DNA Profile Reporting Test provides a detailed genetic prof…
Starting at
$125
Infidelity DNA Test
The Infidelity DNA Test analyzes clothing or personal items to detec…
Starting at
$275.00
Legal Twin Zygosity DNA Test
The Legal Twin Zygosity DNA Test determines whether twins are identi…
Starting at
$275
Legal Family Reconstruction DNA Test
The Legal Family Reconstruction DNA Test helps establish a biologica…
Starting at
$395
Legal mtDNA Female Lineage DNA Test
The Legal mtDNA Female Lineage DNA Test determines whether two indiv…
Starting at
$490
Legal Y-STR Male DNA Test
The Legal Y-STR DNA Test determines whether two males share the same…
Starting at
$325
Legal Avuncular DNA Test
The Legal Avuncular DNA Test evaluates a biological relationship bet…
Starting at
$245
Legal Grandparent DNA Test
The Legal Grandparent DNA Test evaluates a biological relationship b…
Starting at
$245
Legal Maternity DNA Test
The Legal Maternity DNA Test confirms a biological mother–child rela…
Starting at
$195
Home Twin Zygosity DNA Test
The Home Twin Zygosity DNA Test determines whether twins are identic…
Starting at
$145
Home mtDNA Female Lineage Test
The Home mtDNA Female Lineage Test determines whether two or more in…
Starting at
$365
Home Y-STR Male DNA Test
The Home Y-STR DNA Test evaluates whether two or more males share th…
Starting at
$155
Home Maternity DNA Test
The Home Maternity DNA Test provides a simple and private way to con…
Starting at
$115.00
Home Paternity DNA Test
Our at-home paternity DNA test delivers clear, conclusive results b…
Starting at
$115
At-Home and Legal DNA Testing Options Nationwide
Private, Secure Testing—at Home or Through Legal C.O.C Collection
Choose the testing option that fits your needs, whether you require a discreet at-home DNA test for personal knowledge or a court-admissible legal test with professional Chain-Of-Custody collection.
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At-home DNA Testing
Discreet at-home DNA test kits are delivered directly to home or office for private, informational testing.
Shop Home DNA Test Kits
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Legal DNA Testing Centers
Legal court-admissible DNA testing with professional chain-of-custody collection at over 5,000 accredited locations nationwide.
Shop Legal DNA Test Kits
Verified Reviews from DNA Testing Clients
For over 25 years, families across the United States have trusted PaternityUSA for reliable DNA testing and knowledgeable client support, serving hundreds of thousands of clients nationwide with fast, confidential results.
“In my opinion I am very satisfied. I have an adult daughter that’s 24 years old now that I did not know I had. The results came in very quickly, took a couple of days, and I am very pleased with this product. If I need it again, this is what I’ll get. I will definitely recommend this to anybody that needs to do a DNA test.”
Private, Secure, and Confidential DNA Testing
Your Privacy is Protected at Every Step
Strict privacy controls are in place from DNA sample collection through result delivery. At PaternityUSA, your DNA and personal information are treated with strict confidentiality and are never sold, shared, or stored in external databases. We Value Your Privacy!
A Simple, Straightforward DNA Testing Process
Our DNA testing process is designed to be easy, discreet, and reliable from start to finish.
Shop DNA Test KitsOrdering & Shipping
After your order is received, we ship a sterile collection kit at no additional charge. Your kit includes the required swabs and a prepaid return mailer to send samples directly to the laboratory.
Sample Collection
At-home testing uses a painless cheek (buccal) swab collected in the privacy of your home. Legal testing samples are collected by authorized professionals following strict chain-of-custody requirements.
Testing Process
When all samples are received by the laboratory, you will be notified and testing begins. The laboratory compares the genetic profiles and issues a statistical report indicating whether the tested relationship is supported by the DNA findings.
Results Reporting
Results are delivered securely by email, with mailed hard copies available when requested. You can also reach a live case manager during business hours, and we provide updates as your case progresses.
Answers to Common DNA Testing Questions
Find clear, straightforward answers to help you choose the right DNA testing option with confidence. Educational content on this page is reviewed for consistency with accredited relationship DNA testing standards and the procedures followed by PaternityUSA's U.S. based partner laboratories.
Buying a DNA test is an important decision—one that should be based on statistically supported analysis, professional laboratory standards, and complete privacy. Relationship DNA testing often requires the comparison of many genetic markers to produce reliable statistical results, particularly in more complex cases such as sibling, grandparent, and avuncular testing where larger 24-34 or 46 marker panels may improve result confidence. Accredited U.S. laboratories provide professional DNA testing services with transparent pricing, confidential handling of all samples, and results you can trust at home or for legal matters.
The cost of a paternity DNA test typically ranges from about $100 to $300 depending on the type of test. Informational at-home tests are usually the least expensive, while legal paternity tests cost more because they require verified DNA sample collection and documented AABB identity procedures for court use.
Yes. A DNA paternity test can often determine which brother is the biological father. Because brothers share many genetic markers, laboratories may need to analyze additional STR markers to distinguish between them. Testing the child, mother, and both brothers can improve accuracy. Accredited laboratories follow standards such as AABB and CLIA to ensure reliable results.
A home paternity test works by collecting DNA samples from the alleged father and child using simple cheek swabs. The samples are sent to an accredited laboratory where genetic markers from each person are analyzed and compared. The laboratory calculates the probability of paternity and provides a report explaining whether the tested man is likely the biological father.
Participants do not need to be in the same location to complete a DNA test. Separate sample collection kits can be sent to each participant, allowing them to collect their cheek swab samples from wherever they live. Once all samples are returned to the laboratory, the DNA is analyzed together to determine the genetic relationship.
DNA testing begins with collecting a simple cheek swab. The swab gathers buccal epithelial cells from the inner cheek that contain a person’s DNA. Laboratory technicians extract the DNA and analyze specific genetic markers. The DNA profiles are then compared, and statistical calculations determine whether the expected biological relationship is supported.
Yes. When a cheek swab cannot be collected, accredited laboratories may sometimes obtain usable DNA from hair with the root attached, toothbrushes, fingernail or toenail clippings, earwax, or other personal items that contain a person’s cells. While cheek swabs are preferred, these alternative samples may still be used for relationship DNA testing.
If the alleged father is not willing or available for testing, it may still be possible to evaluate the biological relationship using other DNA testing options. Accredited laboratories can sometimes analyze DNA from close relatives—such as siblings, grandparents, or aunts and uncles—to compare shared genetic markers and determine whether the expected biological relationship is supported by the DNA results.
Relational DNA tests analyze specific genetic markers to determine whether a biological relationship—such as paternity, siblingship, aunt/uncle, or grandparentage—exists by directly comparing DNA profiles. Genealogy tests compare DNA against large reference databases to identify possible relatives or estimate ancestry. Relational tests are performed in accredited laboratories and provide statistical probabilities used to evaluate family relationships.
Yes. DNA testing kits for personal knowledge can be shipped directly to your home, allowing participants to collect cheek swab samples and return them to an accredited laboratory for analysis. For legal DNA testing, professional sample collection can be arranged at approved collection sites located throughout all 50 states.
You Can Buy Your DNA Test from PaternityUSA with Confidence
Whether you need a paternity test, sibling DNA test, grandparent DNA test, avuncular DNA test, or another relationship test, PaternityUSA offers at-home and legal testing options with accredited laboratory processing, confidential handling, and clear pricing.
