← DNA & Paternity · DNA Relationship
Legal Test🧬 Paternity⚖️ Court-Admissible

3 Party Legal DNA Test

A court-admissible paternity test that includes the alleged father, the child and the mother for the highest possible certainty. Collected under witnessed chain-of-custody. Results usually 2–5 business days after the lab receives the samples.

$ 448.50All-in price
1Tests included

A 3-party legal paternity test adds the mother's DNA to the analysis of the alleged father and child. Including the mother lets the lab account for the genetic markers the child inherited from her, isolating the father's contribution even more precisely, which strengthens an already conclusive result. Like all our legal tests, it's collected under witnessed chain-of-custody so it can be used in court.

Included Tests

Legal Paternity DNA Analysis (Alleged Father, Child & Mother)
Compares DNA from the alleged father, the child and the mother across a wide panel of genetic markers to determine the probability of paternity with maximum certainty. Collected under documented chain-of-custody so the result is court-admissible.
Alleged fatherChildMother21+ genetic (STR) markers
incl.in panel

What This Panel Measures

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Probability of paternity. Reports the likelihood the alleged father is the biological father: typically 99.99% or higher for an inclusion, or 0% for an exclusion.
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Added certainty. Including the mother's DNA lets the lab subtract her contribution to the child's profile, isolating the father's markers with even greater precision.
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Legal admissibility. Witnessed collection and a documented chain-of-custody make the signed result acceptable to courts and government agencies.
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How it's collected. A trained professional collects a quick, painless cheek (buccal) swab from each of the three participants at the test center.

Who Should Get This Panel

  • You want the strongest possible paternity result for a court, child support or custody case
  • You're supporting an immigration petition and the mother is available to participate
  • You want to establish paternity for a birth certificate with maximum certainty
  • A court or attorney has requested a legally admissible test and all three parties can be tested
  • You want a definitive answer and the mother is willing to be included

Conditions Screened

Establishes biological paternityCourt-admissible proof of relationship

Related Symptoms

Child supportCustodyImmigrationBirth certificate

When to Get Tested

Any time you need to confirm paternity with the highest certainty and all three parties can participate. A child can be tested at any age, including newborns. If your matter is time-sensitive, schedule the witnessed collections as early as possible; each person can be collected separately if needed.

Understanding Your Results

Results post to your secure online account, usually 2–5 business days after the lab receives all samples. A probability of paternity of 99.99% or higher confirms the alleged father is the biological father; a result of 0% rules him out. Including the mother tightens the statistical strength of the result. Because the collection was witnessed under chain-of-custody, the signed report can be submitted to courts and agencies.

Frequently Asked Questions

Will these results hold up in court?
Yes. This is a legal test collected under a documented chain-of-custody: each person's identity is verified and samples are handled by neutral staff. The signed result is admissible for child support, custody, immigration and birth certificate matters.
How much more accurate is it to include the mother?
A standard father-and-child test is already conclusive (99.99%+ for an inclusion). Adding the mother's DNA removes her genetic contribution from the child's profile, which further strengthens the statistical certainty, especially useful in contested legal cases.
How does the collection work?
The father, child and mother each visit a test center, where staff verify each person's ID (a driver's license, state ID or similar) and collect a quick cheek swab from each person. It's painless, takes a few minutes, and participants can be collected separately if needed.
Is this billed to insurance?
No. You pay directly here, and nothing is billed to insurance. Your results go only to your secure account.

Pairs Well With: Same Blood Draw

Legal Paternity Test (2-Party)
The father-and-child version when the mother isn't available.
+ Add
Legal Grandparent DNA Test
Uses a grandparent's DNA when the alleged father can't be tested.
+ Add
$ 448.50
✓ The price you see is the price you pay. No draw fees. No physician fees. No surprise bills. $ 448.50 is all-in.
Comparing prices? Some self-pay labs advertise a low number, then add ~$28 in "lab & physician fees" at checkout. We don't. What you see here is the whole cost.
⚡ We send your lab order electronically to the test center in 2–3 minutes. Nothing to print, nothing to bring. Just walk in and sign in.
📍 Can you get tested nearby?

Test centers don’t accept payment. You pay securely here; the lab just does the draw.
⚡ Results 2–5 business days after the sample is received🧪 1 tests

What happens after you order?

  • 1Your lab order form & test code appear in your secure online account, with your test center’s address.
  • 2We send your lab requisition to the test center electronically.
  • 3Walk in & get tested. Tests usually take 5 minutes or less.
📞 Need support? (866) 873-0879
$ 448.50all-in · no extra fees