Can you have two active Visas at the same time? I am currently in Bangkok on a 90-day non O visa effective until 29 December. I plan to secure a re-entry permit to fly to Vietnam in November and apply for a DTV Visa. If successful, can I come back to Bangkok still under the Non O Visa, leave without the re-entry permit then enter next year 2025 under the DTV visa? Reason that I need to come back is that I already paid for an Airbnb for the month of November.
TLDR : Answer Summary
You cannot hold two active visas simultaneously in Thailand. If you apply for the DTV Visa while on a Non-O Visa, the Non-O will become invalid upon approval of the DTV Visa. When you return to Thailand using a re-entry permit, you must use the visa under which you re-entered. Therefore, if your DTV application is successful, you won't be able to use your Non-O Visa again; instead, you will have to enter under the DTV Visa. If the DTV application is rejected, your re-entry permit allows you to return under your Non-O Visa.
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