Reviewed by Carlos Vargas, Texas Licensed Funeral Director (TFSC #119648) ·
Four Thai posts publish their areas, and only one names Texas
Thailand is unusually easy to pin down, because every post publishes its own list. The Royal Thai Embassy in Washington names the states it serves and Texas is on that list, with Tennessee, Louisiana, Florida and Puerto Rico. Then check the other three and Texas is absent from each: Los Angeles claims thirteen western states, Chicago fourteen midwestern ones including Oklahoma, and New York ten in the northeast. Four official pages, one answer.
There is also a Thai office in Houston. The Texas Secretary of State’s page for Thailand gives it as an Honorary Consul at 3 Greenway Plaza, Suite 800, Houston, Texas 77046-2401, telephone 713-335-3995, and names the Royal Thai Embassy in Washington as the embassy behind it. An honorary consulate is a useful local contact, but the civil registration work in this guide is done by the consular section at 2300 Kalorama Road, N.W., Washington, D.C. 20008, telephone (202) 640-5325.
The document Thai customs wants can only come from Washington
Start here, because everything else waits on it. The Thai Customs Department sets out what it needs before it will release a body or ashes at the Thai border, and one of the four items is the death certificate issued by the Royal Thai Embassy or Consulate in the country in which the person passed away. Not the Texas death certificate. A separate Thai one, issued in Washington.
The embassy publishes how to get it, in five steps, and none of them are quick. The Texas death certificate must first be authenticated by the Secretary of State and then by the U.S. Department of State. Only then is an online application accepted, with the deceased person’s Thai passport, national identity card or house registration, and the same for the person reporting the death. The embassy reviews the file, then schedules an in-person appointment. It asks for two USPS Priority Mail envelopes carrying 12.90 dollars of postage each, both with tracking numbers.
Then the catch that traps families. The embassy mails out two certificates, and you must sign one and post it back. Until that signed copy is returned, it states, the application is treated as incomplete. Processing after the file is complete is about 15 business days, longer at busy times. Count backwards from the funeral date and begin the authentication the week of the death.
An apostille that exists but does not work yet
This is the single most misunderstood point about Thailand right now, and the date is the whole of it. The HCCH status table, read on September 21, 2026, shows Thailand acceding to the Apostille Convention on June 30, 2026, with entry into force on February 28, 2027. Acceded is not in force. Today, in September 2026, an apostille alone is not the route, which is exactly why the embassy still asks for both the state and the federal authentication described above.
Anything written since the summer announcing that Thailand now takes apostilles is ahead of the calendar. From February 28, 2027 the position changes, and a single certificate under the Texas authentication process should replace the double chain. If you are reading this after that date, telephone the consular section and confirm what it wants before ordering anything, because an embassy page does not always change on the day a treaty does.
What happens at the Thai border
The reassuring part of this file is the arrival. The customs department lists four categories of paperwork for a body or ashes: the passport of the deceased, the air waybill, the Thai-issued death certificate discussed above, and supporting documents. It then says something families rarely expect, which is that no Import Declaration Form and no Special Declaration Form are required. Officers verify the documents, release the remains and keep a record, and the person collecting signs for them.
So the burden sits almost entirely at the Washington end. Get the Thai death certificate right and the border is administrative. Get it wrong and the shipment can arrive without the one document that releases it. Our guide to the paperwork sets out the order these certificates have to be obtained in.
Two carrier rules worth knowing before you book
Thai Airways Cargo publishes its human remains conditions and two of them shape the booking. It will not accept human remains consolidated with any other cargo, and it wants a confirmed reservation all the way through to the destination rather than a booking to the connecting point. The casket must be rigid, secured against shifting and against the escape of odors. Urns are easier: the same page allows funeral urns on any passenger or cargo aircraft where government rules have been met.
ANA Cargo’s conditions of carriage add a different warning. Human remains are accepted only under its own regulations rather than as ordinary freight, and it will decline to carry them on a charges-collect basis unless that was arranged in advance. In plain terms, settle who pays and how before the shipment moves. Dallas/Fort Worth to Suvarnabhumi will involve a connection whichever way it routes, so confirm that each carrier on the itinerary has accepted the booking.
| Step | Who does it |
|---|---|
| Authenticate the Texas death certificate | Texas Secretary of State, then the U.S. Department of State |
| Issue the Thai death certificate | Royal Thai Embassy consular section, Washington |
| Return the signed certificate | The person reporting the death |
| Accept and route the casket | The airline’s cargo department |
| Release the remains on arrival | Thai Customs Department |
Questions families ask about a return to Thailand
- Do I deal with Houston or Washington?
- Washington for the civil registration. The Houston office is an honorary consulate, and the Los Angeles, Chicago and New York consulates all publish jurisdiction lists that exclude Texas, while the Washington embassy publishes one that includes it.
- Can I use a Texas apostille?
- Not yet. Thailand acceded to the Apostille Convention on June 30, 2026 but it does not enter into force for Thailand until February 28, 2027. Until then the embassy asks for authentication by both the Secretary of State and the U.S. Department of State.
- How long does the Thai death certificate take?
- The embassy says about 15 business days once the file is complete, and longer at busy times. The file is not complete until you have returned one signed copy of the certificate it mails to you.
Sources checked and case confirmation
Sources checked September 21, 2026, on the Royal Thai Embassy, three Thai consulates-general, the Thai Customs Department, the Texas Secretary of State, the HCCH status table and two airlines. The embassy publishes no fee for the Thai death certificate beyond the postage it specifies, and that is stated rather than filled in. Confirm the documents, the current authentication route, the airline and the receiving arrangements for the individual case. Contact Vargas–London with the province in Thailand and where your relative is now, without sending medical or identity documents through the inquiry form.
