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Father and child completing a paternity DNA test from different states using at home DNA test kits

How to Do a Paternity Test When the Father and Child Live in Different States

You don't need to be in the same room - or even the same state - to do a paternity test. A multiple-location DNA test kit ships separate kits to each participant, so the father and child can collect their samples independently from wherever they are and return them directly to the lab. This post covers how the process works, what to expect at each step, and when interstate testing makes sense.

Key Takeaways

  • A multiple-location paternity test ships two separate kits to two different addresses with a single order. Each participant collects their sample at home and mails it back to the lab independently.
  • The test is just as accurate as a standard single-location kit. Both use the same lab analysis, the same 24 genetic markers, and the same AABB-accredited, CAP-certified lab.
  • No appointment or clinic visit is required for at-home peace-of-mind testing. Each person swabs their cheek at home and returns the kit by prepaid FedEx.
  • Results are ready 1-3 business days after the lab receives both samples. The lab holds the first sample until the second arrives, then processes them together.
  • This option works for more than just paternity. Multiple-location kits are available for sibling, grandparent, aunt/uncle, and maternity testing as well.

 

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When Do You Need a Multiple-Location Kit?

The standard at-home DNA test kit ships one kit to one address. Both participants collect their samples together (or at least in the same household) and return everything in one package.

That works when everyone lives under the same roof or in the same city. It doesn't work when they don't.

A multiple-location kit solves the logistics for situations like:

  • A father in one state and a child in another (shared custody, separated parents, long-distance families)
  • A father overseas and a child in the U.S., or vice versa
  • A grandparent in one city testing against a grandchild in another
  • Siblings in different states who want to confirm whether they share one or both biological parents
  • Any relationship test where the participants can't physically be in the same place to collect samples at the same time

 

The test doesn't require coordination beyond making sure both people actually complete their kit and mail it back. There's no appointment to schedule, no clinic to visit, and no need for both kits to arrive at the lab on the same day.

How a Multiple-Location Paternity Test Works

The process is straightforward. Here's what happens from order to results:

Step 1: Place a single order. You provide two shipping addresses - one for each participant. We ship a complete DNA collection kit to each address.

Step 2: Each person collects their sample at home. Both kits include cheek swabs with clear instructions. The collection takes about 30 seconds per person. It's painless and safe for adults, children, and infants.

Step 3: Each person mails their kit back to the lab. Each kit includes a prepaid FedEx return envelope. The two participants don't need to coordinate timing - each person simply sends their kit when they're ready.

Step 4: The lab processes both samples together. Once both kits arrive, the lab runs the analysis. If one sample arrives before the other, it's securely stored until the second arrives.

Step 5: Results are delivered by email. Typically within 1-3 business days after the lab receives both samples. Your dedicated DNA Specialist contacts you directly - no portals, no barcode registration, no automated systems.

One thing to note: the overall timeline depends on how quickly both participants complete and return their kits. The lab processing time is the same as any other at-home test. The variable is return shipping from two locations instead of one.

What's Included in Each Kit

Each participant receives a complete, independent collection kit. Nothing needs to be shared or transferred between the two locations.

Each kit contains:

  • FDA-approved cheek swabs
  • Step-by-step collection instructions
  • Sample envelopes for secure transport
  • A prepaid FedEx return envelope
  • A Result Notification Form (must be completed and included with the sample)

 

Both kits are shipped in plain, unbranded packaging. Nothing on the outside indicates DNA testing.

Is a Multiple-Location Test as Accurate as a Standard Test?

Yes. The distance between participants has zero effect on accuracy. Both kits go to the same AABB-accredited, CAP-certified lab. Both samples are analyzed using 24 genetic markers (above the industry standard of 16). Every sample is tested twice as part of our dual-testing protocol.

A positive result (inclusion) shows a probability of paternity of 99.999% or greater. A negative result (exclusion) is 100% conclusive. These numbers are identical to what you'd get from a single-location kit.

Peace of Mind vs. Legal Testing Across State Lines

At-home multiple-location kits are for personal knowledge only. The results are scientifically accurate but not admissible in court, because there's no chain of custody documenting who provided each sample.

If you need court-admissible results - for custody, child support, inheritance, or immigration - the requirements are different. Legal DNA testing requires:

  • Government-issued photo ID from all participants
  • A neutral third-party witness at each collection site
  • Documented chain of custody from sample collection through lab analysis
  • Sealed, tracked sample handling at every step

 

Legal testing across state lines is possible, but it requires coordinating witnessed collections at approved facilities in each participant's location. Contact us to discuss logistics if you need legal results - we can help arrange collection appointments in both locations.

Beyond Paternity: Other Relationship Tests That Work Across Distances

The multiple-location option isn't limited to paternity testing. Any relationship DNA test can be done with participants in different locations:

  • Sibling DNA test - Confirm whether two people share one or both biological parents when they live in different states
  • Grandparent DNA test - Test a grandparent against a grandchild when they're in different cities, commonly used when the alleged father is unavailable
  • Aunt/uncle (avuncular) DNA test - Confirm biological aunt or uncle relationships across distances
  • Maternity DNA test - Verify a biological mother-child connection when the mother and child are in different locations

 

The process is identical for all relationship types: one order, two kits, two addresses, same lab analysis.

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Frequently Asked Questions

Can both kits be shipped to the same address?

Yes. Some families order the multiple-location kit because they want each participant to have their own complete kit, even if they're in the same household. But the primary use case is shipping to two different addresses.

What if one person takes longer to return their kit?

The lab holds the first sample securely until the second arrives. There's no deadline or expiration window you need to worry about, but faster returns mean faster results.

Do the two participants need to collect their samples on the same day?

No. Each person collects their sample whenever it's convenient and mails it back on their own schedule.

Can I use a discreet sample instead of a cheek swab?

Yes. If a cheek swab isn't available for one of the participants, adiscreet DNA sample such as a toothbrush, hair with the root, or nail clippings can be used instead. Contact us before ordering to confirm the best sample option for your situation.

Does the mother need to provide a sample?

No. A standard paternity test compares the child's DNA directly to the alleged father's DNA. The mother's participation is not required. Including the mother's sample is optional and can strengthen the statistical analysis, but it's not necessary for accurate results.

Does this work internationally, or only within the U.S.?

We can ship kits to most international destinations. If one participant is outside the U.S., contact us before ordering so we can confirm shipping logistics and any customs considerations.

Ready to Get Started?

If the father and child are in different locations and you need answers, our team can help you choose the right kit and walk you through the process.

Phone: 402-800-7161 Email: sales@myforeverdna.com

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