Yes, you can do a DNA test with a relative who lives in another country, but the right route depends on what the result is for. If you want a private answer about a family relationship, a home kit is the simpler path, provided the kit can reach your relative and the sample can come back. If the result must be accepted by an immigration office, a different process applies: it runs through an AABB-accredited laboratory and, for samples collected overseas, through a U.S. Embassy or Consulate. This guide explains both paths plainly and tells you where each one leads.
TL;DR
- A home DNA test with someone abroad is possible when the kit can be delivered to them and the sample can be returned to the lab. It gives you a personal answer, not a result for an immigration office or a court.
- Immigration cases follow a separate process. The State Department describes a U.S.-based AABB-accredited lab shipping materials to the Embassy or Consulate, which schedules the overseas collection.
- Our home kits start at $79 for paternity, $129 for maternity and $139 for sibling, grandparent and aunt/uncle tests. Lab processing takes 2 to 3 business days, and the standard order-to-results time is 7 to 10 business days.
- Before ordering for an overseas participant, confirm the delivery country with our support team, and allow extra time for shipping in both directions.
Table of Contents
- Two different goals, two different processes
- How a home kit works with a participant in another country
- Prices for the tests people ask about most
- Choosing the right test for a relative abroad
- If the result is for immigration
- Our perspective
- Ordering a kit for a family member abroad
- Practical tips to avoid unusable results
- FAQ
- Sources
Two different goals, two different processes
Most confusion about international DNA testing comes from treating all tests as the same thing. They are not. The same cheek swab can be used in two very different settings, and what separates them is paperwork and oversight, not the swab itself.
A personal (home) test. You want to know whether you are related to someone. Each participant collects their own sample, usually with a cheek swab, and mails it to the lab. Nobody verifies who actually swabbed. The result is for your own knowledge and for family decisions.
An immigration test. A government office needs proof of a relationship, usually for a visa petition. Here identity of each person, supervised collection and a documented chain of custody are required. AABB states that immigration testing requires an AABB-accredited facility and a valid chain of custody, and that the federal government recognizes AABB-accredited facilities for this purpose.
AABB also draws the line from the other side. Its 2024 technical report distinguishes legal testing from non-legal tests that lack a chain of custody, and says a laboratory cannot claim that non-legal testing meets AABB standards. We agree with that distinction, and it is the reason we are direct with you about what our kits are for.
Which one applies to you
| Your situation | Process that fits | Where to start |
|---|---|---|
| Curious about a relationship with a relative overseas | Home kit, no witness required | A home test such as the home DNA test collection |
| Settling a family question privately, such as paternity between you and a child abroad | Home kit, if both participants consent and the kit can be delivered | Our support team to confirm delivery |
| A visa or immigration petition | Immigration test through an AABB-accredited lab and an Embassy or Consulate | The AABB registry, then the lab directly |
| A court case | A test with a documented chain of custody | A lawyer and an accredited legal testing lab |
If your test is for the last two rows, a home kit from us is not the right product, and ordering one would cost you time and money without producing a result an agency will accept.
How a home kit works with a participant in another country
A home kit is built on a simple idea: every person swabs the inside of their own cheek, seals the sample and sends it back. Nothing about that requires everyone to be in the same place, which is why home testing suits families spread across countries.
The practical steps look like this:
- Choose the test. Paternity, maternity, full or half sibling, grandparent, or aunt/uncle. The test type depends on who is involved, not where they live. If you are unsure, our test finder recommends an option based on your situation.
- Confirm delivery before you pay. Ask our support team whether the kit can be delivered to the participant’s country, and how the sample will return. We do not assume every destination is possible, and neither should you.
- Place the order and share the kit. The kit includes a prepaid return shipping envelope. Where participants are in different places, plan how each person’s swabs will reach the lab, and keep each person’s sample separate and labeled.
- Each participant swabs and seals. Follow the instructions in the kit exactly: no eating, drinking or smoking for the period the instructions specify, and no touching the swab tip.
- Return the samples. The lab begins processing when it has every participant’s sample. A result cannot be produced from a partial set.
- Receive the result. Lab processing takes 2 to 3 business days. The standard time from order to results is 7 to 10 business days, and international shipping is the part most likely to stretch that range.
What the cheek swab needs to be
The collection method matters for international cases too. The State Department says the preferred specimen technique is a buccal swab, taken from the cheek or mouth cavity. This is the same method used in home kits, which is painless and does not involve blood.
Timing and shipping across borders
The lab clock only starts when all samples arrive. For an overseas participant, that means the slowest leg of the journey sets your schedule. Before you order, think through three things:
- How long a package typically takes to reach your relative’s address.
- Whether the destination country has postal restrictions on biological samples or on kits. Rules differ by country, so check with the local postal service.
- How quickly your relative can return the sealed sample.
If speed matters once all samples reach the lab, our next-day results option is available during checkout. It shortens lab turnaround only; it cannot shorten transit time.
Prices for the tests people ask about most
The price of a home test does not change because a participant lives abroad. These are the published prices for our home kits:
| Test | Price |
|---|---|
| Home Paternity Test Kit | $79 |
| Home Maternity Test Kit | $129 |
| At-Home Full Sibling DNA Test Kit | $139 |
| Home Half Sibling DNA Test Kit | $139 |
| Home Grandparent DNA Test | $139 |
| Home Aunt/Uncle DNA Test Kit | $139 |
| Home Twin Zygosity Test Kit | $119 |
Our tests compare up to 28 markers, and the result states the probability of the relationship. You can see every option on the home DNA test page. Any extra international shipping or postal cost on the receiving side is separate from the test price, so ask support what to expect for your destination before you order.
Choosing the right test for a relative abroad
People often order the wrong test because the family tree is more complicated than the product names. A few points help.
Paternity. A child and an alleged father are the core participants. Adding the mother usually strengthens the comparison, which is why trio testing exists alongside duo testing. If the child lives abroad with the mother, she can swab both herself and the child, as long as she is the legal guardian and consents.
Siblings. Full and half sibling tests estimate whether two people share one or both parents. They are most useful when no parent is available, which is common when family members have been separated by migration. Sibling results are statistical and can be less decisive than parent-child results, so read the probability carefully.
Grandparents and aunts or uncles. These tests apply when the parent cannot be tested. Including the parent, when one is available, makes the result more reliable, which is why those tests are priced differently with and without a mother in our legal-style panels.
Twins. A twin zygosity test is unusual in this context, but it fits families in which twins live apart and want to know whether they are identical.
Our kinship testing guide explains how each relationship test works, and the paternity testing guide covers the most common case in detail.
If the result is for immigration
This is where we ask you to slow down, because mistakes here can delay a case by months. The rules below come from U.S. government sources and AABB.
Use an AABB-accredited laboratory, and start with it directly
USCIS officers may accept parentage test results only from laboratories on the AABB-accredited list. The State Department adds that petitioners must contact an AABB-accredited laboratory directly to start an immigration-related case, and that no third party should be used to choose the lab or make arrangements. AABB gives the same advice: begin only with a facility on its official registry to avoid rejection of your case.
A home kit from us is not a substitute for an AABB-accredited lab result. Our guide to verifying an AABB lab shows how to check a lab’s status yourself.
How overseas collection works
The State Department describes the sequence this way: the U.S.-based laboratory ships the kit with prepaid, pre-addressed return materials to the Embassy or Consulate. The embassy contacts the applicant to schedule an appointment, and after collection returns the sample to the lab. The procedures page states that collection is done by a designated physician or medical technician, witnessed by officers, and that the applicant brings a passport, a photo and the collection-fee receipt.
When the petitioner is in the United States, their own sample must be collected at an AABB-accredited laboratory facility. It cannot be a home swab mailed in. Our articles on chain of custody for immigration DNA and overseas consulate requirements for I-130 petitions go deeper into this process.
Costs on the overseas side
The State Department’s Vietnam post states that applicants and U.S. petitioners are responsible for testing, shipping and specimen collection fees. That post lists a $70 collection fee per person paid directly to IOM at collection, in cash and U.S. dollars, and asks applicants to bring two recent photos and valid government-issued photo identification. Those figures are specific to Vietnam. Fees and requirements differ by Embassy or Consulate, so read the page for the post that will handle your relative’s appointment. Our article on who pays for immigration DNA covers the payment sequence.
Sibling results have thresholds
For sibling petitions, USCIS applies a preponderance of the evidence standard, meaning the relationship must be more likely than not. Its 2018 memorandum treats full-sibling results from 9% to below 90% as inconclusive, and half-sibling results below 90% as inconclusive. A probability that looks reasonable in a casual test may therefore not settle a petition.
DNA is often not the first step
The State Department says genetic testing generally should be used only when other evidence establishing the relationship is absent. Birth certificates, school records and photographs come first. For a broader overview, see our guide on how USCIS uses DNA for visas. About 7% of relationship testing cases AABB-accredited labs reported in 2024 were for immigration, visa, passport or citizenship purposes, so this is a specialized slice of the field.
Our perspective
We see two kinds of customers with an overseas relative: those who want an answer for themselves and those who need an answer for an agency. The first group is well served by a home kit. The second group is often not, and the costly error we most want to prevent is a family paying for a home test before learning that their case needs a supervised, accredited process.
So we ask one question first: who has to accept this result? If the answer is only you and your family, the guided test finder picks the most affordable kit that answers your question, and the kit includes a prepaid return shipping envelope. If the answer is an agency or a court, we tell you plainly that our tests are not the right fit, and we point you to the official resources that describe the correct process.
The second thing we stress is logistics. DNA analysis takes 2 to 3 business days once the samples are in the lab. Most delays happen before that, in customs, local mail and family coordination. A plan for each participant, including who swabs, when, and how the sample returns, saves more time than any expedited option.
— Dr. Todd Lewis
Ordering a kit for a family member abroad
When the goal is personal knowledge, the home DNA test collection lists each kit with its price, from $79 for a paternity test. If you are unsure which relationship test fits, the test finder walks through your situation and suggests an option. Contact our support team before ordering to confirm delivery to your participant’s country.
Practical tips to avoid unusable results
Few problems with international home tests are about the lab. Most are about handling. These habits reduce risk:
- Label every sample. Write the participant’s name and the collection date on the packaging as the instructions direct.
- Collect on a schedule. If participants swab on different days, note it. Samples should be sealed and returned promptly.
- Keep paperwork together. Consent forms and any identification the kit requests should travel with the right sample.
- Do not mix kits. Each participant should use the swabs in their own kit.
- Track the shipment. Use tracking where available so you know when the last sample arrives.
- Ask before swabbing a child. The parent or legal guardian must consent, and the child should not eat or drink just before collection.
If a sample is unusable, the lab may request a new one, which means another round of international shipping. Careful collection the first time is the best protection.
FAQ
Can you do a DNA test with someone in a different country?
Yes. For a personal test, each person swabs at home and returns the sample, so location matters only for shipping. For immigration cases, AABB notes that its accredited facilities can arrange collections nearly anywhere in the world. Confirm delivery with the lab or provider before ordering.
Will a home DNA test be accepted for immigration?
No. Immigration offices accept results from AABB-accredited laboratories with a documented chain of custody, and overseas samples are collected at an Embassy or Consulate. A home kit, including ours, is for personal knowledge only.
How long does a test with an overseas participant take?
Lab processing takes 2 to 3 business days, and our standard order-to-results time is 7 to 10 business days. When a participant is abroad, shipping in each direction adds to that, and the lab cannot start until every sample has arrived.
Which test should I choose if I cannot test the parent?
A sibling, grandparent or aunt/uncle test can establish a family link without the parent. Each is priced at $139 in our home kit line. Our test finder asks about your family situation and recommends the matching option.
Sources
- DNA (Relationship) Testing FAQs, AABB
- 2024 AABB Relationship Testing Technical Report
- DNA Relationship Testing Procedures, U.S. Department of State
- Information for Parents on U.S. Citizenship and DNA Testing, U.S. Department of State
- DNA Tests, U.S. Embassy and Consulate in Vietnam
- Genetic testing guidance, USCIS
- Policy Memorandum on DNA evidence of sibling relationships, USCIS, 2018
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