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Does my partner need to extend her stay in Thailand if she enters on her English passport?

Thai Dual Citizenship Visa Extension Thai Immigration Law Non-Immigrant Visa Travel Passports

Nov 9, 2025

6 months ago

Dek ******

ORIGINAL POSTER

My partner and me are going to Thailand for 3 months and I know I need to extend for another 30 days, however my partner who is from Thailand as a dual citizenship and is travelling on her English passport the question is will she also need to extend for another 30 days also

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TLDR : Answer Summary

If your partner enters Thailand using her English passport, she is treated as a foreigner under immigration law and will need to extend her stay. However, if she enters on her Thai passport, she can apply for a longer 1-year extension instead of the standard 30-day extension. It is highly recommended that she uses her Thai passport upon entry to avoid complications.

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Robert ******

My wife and I came in and she had to use her foreign passport. She has to leave again and re-enter with her Thai passport. Not a big deal can catch a flight out and enjoy a quick trip and come back

6 months ago

Brook ********

ALWAYS enter Thailand on the Thai passport.

6 months ago

Rick *********

Also you could apply for a 90 day non immigration visa then no need to extend 👍

6 months ago

Wannikea *********

She can board the plane using whatever passport the flight was booked under, but then use Thai passport to go through immigration. She also won't need to do a TDAC entering as a Thai.

6 months ago

Brandon ************

She can travel on whatever passport she wants, but she should enter Thailand as a Thai citizen using her Thai passport.

If she enters Thailand using a foreign passport, then she is a foreigner as far as immigration law is concerned. The difference is that instead of the 30-day extension, she can apply for a 1-year Thai citizen extension.

6 months ago

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Brandon ************

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