Deoxyribonucleic Acid (DNA) testing is considered the most accurate method available today for determining biological relationships. Choosing the right DNA test for your situation is essential. Below, we explain which DNA tests are best based on your unique circumstances.
What DNA Test Is the Best?
The best DNA test depends on the type of relationship being determined and how you plan to use the result. Below, we break down the common relationship DNA tests and their typical use cases.
Best DNA Testing Options by Situation
Paternity Testing
A paternity test determines the biological relationship between an alleged father and child. There are two options available, depending on how you plan to use the results.
Non-Legal Paternity Test (At-Home Kit):
- Peace of mind test, used for informational purposes only.
- Commonly chosen by adoptees, stepchildren exploring biological connections, or mothers seeking private confirmation.
- Kits are shipped to your home and include a consent form, DNA collection supplies, and a prepaid FedEx return envelope.
- Price: Starts at $199.99
Learn more about non-legal Home paternity testing here
Legal Paternity Test:
- Provides proof of biological relationship for legal purposes such as:
- Birth certificate name changes
- Social Security benefits
- Immigration visa applications
- Estate cases
- Child support and custody matters
- Performed by an AABB-accredited laboratory, ensuring results are accepted by courts and government agencies nationwide.
- Price: Starts at $350.00
Learn more about Legal Paternity Testing here. Call 888-204-0583 to get started.
DNA Sibling Test
Sibling tests are commonly used in the following circumstances:
- To determine paternity when the alleged father is unavailable for direct testing
- Adding a deceased father’s name to a child’s birth certificate
- Acquiring Social Security benefits when a father is deceased
- Adoption cases
This test is an alternative to direct parent-child testing and can be used for both legal and non-legal purposes. However, it does not provide the same level of accuracy as a paternity test.
Prices start at $299.99 for non-legal and $499.99 for legal testing.
Learn more about Sibling DNA Testing here. Call 888-204-0583 to get started.
DNA Grandparent Test
DNA grandparentage tests are commonly used in the following circumstances:
- To determine paternity when the alleged father is unavailable for direct testing
- Adding a deceased father’s name to a child’s birth certificate
- Acquiring Social Security benefits when a father is deceased
- Adoption cases
- Estate cases
- Immigration visa evidence submission
This test is an alternative to direct parent-child testing and can be used for both legal and non-legal purposes. Accuracy is lower than a direct paternity test.
Prices start at $299.99 for non-legal and $499.99 for legal testing.
Learn more about Grandparent DNA Testing here. Call 888-204-0583 to get started.
Maternity Test
A maternity test determines the biological relationship between a mother and child. Common reasons for testing include:
- Confirming biological relationship after IVF
- Immigration visa evidence submission
- Adoption cases
- Estate cases
This test can also be performed for both legal and non-legal purposes.
Prices start at $199.99 for non-legal and $350.00 for legal testing.
Learn more about Maternity Testing here. Call 888-204-0583 to get started.
What Is the Best Ancestry DNA Test?
Finding the best direct-to-consumer ancestry test depends on your goals. Currently, IDTO DNA does not offer ancestry testing services. Below are ancestry testing services organized by use case:
AncestryDNA: Best for Family History and Genealogy
- Large database of 60 billion historical records
- Family tree builder and DNA communities
- Price: Starting at $39.00 (sale pricing)
23andMe: The Health and Ancestry Hybrid
- Ancestry-only kit: $99.00
- Provides ancestry percentages, 80+ reports, and 4,000+ regions
- Health + ancestry package: $499.00 (first year) — includes disease risk insights, health reports, and additional premium features
MyHeritage: Best for International Ancestry
- Focus on European and Middle Eastern ancestry
- Includes 2,114 regional breakdowns, DNA matches, and family tree tools
- Access to 35.9 billion historical records
FamilyTreeDNA: Best for Deep Lineage and Surname Studies
- Autosomal DNA matches within 5 generations
- Y-DNA haplogroup analysis (for males)
- Ancient population connections
- Price: Starting at $39.00; paternal and maternal lineage options available
Ancestry Testing Comparison Chart
| Service | Best For | Starting Price | Key Features |
|---|---|---|---|
| AncestryDNA | Family history & genealogy | $39.00 | 60B records, family tree builder |
| 23andMe | Health + ancestry combo | $99 ancestry / $499 health | 80+ reports, health insights |
| MyHeritage | European/Middle Eastern focus | $33.00 | 2,114 regions, historical records |
| FamilyTreeDNA | Deep lineage & surname studies | $39.00 | Y-DNA analysis, ancient connections |
Please note prices of these ancestry tests are subject to change.
Which DNA test is most accurate?
The accuracy of a DNA test to determine a biological relationship is dependent upon on the following factors.
- DNA sample collection method and storage
- Samples should be analyzed and tested by an AABB accredited lab. Accredited labs are recognized by state and government agencies.
- DNA samples should be tested on minimum of 18 genetic markers and higher.
