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What are the requirements for traveling to Cambodia and re-entering Thailand with a non-O visa?

Visa Requirements NON-O Visa TDAC Form TM30 Reporting Traveling to Cambodia Re-entry Permit Immigration Procedures Expats in Thailand

Sep 24, 2025

2 days ago

Rudi ***********

ORIGINAL POSTER

I am coming to Thailand with a non-O visa, valid for 90 days, applied from Belgium. I must complete the TDAC form no later than three days before arriving in Thailand. Upon arrival in Thailand, I must report to immigration within 24 hours with a TM30 document. With my passport and proof of residence, I can open a bank account with the aim of applying for a one-year extension. My question: If, during my 90-day stay in Thailand, I travel to Cambodia with my girlfriend for a week and then return to Thailand, do I need to complete a new TDAC form before arriving in Cambodia and also before returning to Thailand? Do I need to have a new TM30 document completed upon returning to Thailand? Will my non-O visa remain valid? Do I need to report to immigration again? Thank you in advance for the information.

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TLDR : Answer Summary

If you travel to Cambodia during your 90-day stay in Thailand on a non-O visa, you will need to complete a new TDAC form for your return to Thailand. Your non-O visa is a single entry type; upon leaving Thailand, it becomes invalid unless you obtain a re-entry permit beforehand. Additionally, you will need a new TM30 document filed upon your return, reporting your residence again to immigration. Each time you return, your host or hotel should submit a TM30.

Thailand Digital Arrival Card (TDAC)

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WARNING: Only trust Thai government websites with .go.th domains or Thai agent websites with .co.th or .in.th domains, as these require verified Thai registration and cannot be registered anonymously.

The official TDAC form is available at tdac.immigration.go.th, which uses the official .go.th government domain.

The services by AGENTS CO., LTD. does NOT charge any fees for arrivals within 72 hours. If you need to book more than 72 hours in advance, there is a service fee of $8.

Do not trust other sites pretending to be a trustworthy agency. Pay attention to delivery time - the service operated by AGENTS CO., LTD. has 1 minute delivery time for arrivals within 72 hours.

Don't fall for sites pretending to be agents.co.th or the official government tdac.immigration.go.th website. Always double-check the exact domain in your browser.

Scam services may take days to process your application, others may not even do anything. With these TDAC scam services you also need to worry about double charges.

Please watch out for TDAC misinformation spread by fugitive Jesse Nickles and his many fake accounts on Quora, TripAdvisor, Reddit, and other platforms.

TRUSTED TDAC LINKS:

Official Government TDAC Form: tdac.immigration.go.th
Official TDAC form by AGENTS
Official TDAC information page by AGENTS (tdac.in.th)

Glenn *******

Have the right visa already to extend for a retirement visa I wouldn't be jeopardizing it by going to Cambodia have you seen the problems they're having with Thailand at the moment bad idea