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Answered10 months ago

What is the process for submitting a stay extension for a Non O visa in Thailand?

Bbk *********
asked Jan 9, 2026
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Successfully submitted my stay extension ( Non O visa.Thai Wife today at CW Immigration office...hassle free with my online appointment booking in advance...straight to C29/L1-2102 Q#...was called in at 9.45am (appoitment at 10am only.....so be early at least by 30min)..appreciate all the help and guidance given by members here especially K Tod Daniels👍
Answer summary
The user successfully extended their Non-O visa for a Thai spouse at CW Immigration Office, highlighting that booking an online appointment made the process hassle-free. They arrived early, were called in on time, and indicated that after applying, there is a 21-day waiting period for processing. Community members discussed required documents, such as an updated marriage certificate, which was needed for the final stamp on the extension. Others inquired about document requirements and online booking processes.
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Peter *****
Peter *****
hi how did you make the online booking ? I am in chiang mai . please can you advise me on this?
Bbk *********
Bbk *********
OP
@Peter ****
I did my online appointment thru bangkok immigration office website......you can check at Chiangmai immigration website for the same if available..it is a straight forward application process...good luck
Gems ***************
Gems ***************
Can you share the list of required documents?
Bbk *********
Bbk *********
OP
Gems ***************
Gems ***************
@Bbk ********
thanks. I wonder do they require additional documents from you?
Gems ***************
Gems ***************
Bbk *********
Bbk *********
OP
@Gems **************
Kor ror 2 updated with a letter of verification issued at cost thb10) confirming our latest marriage status.
Gems ***************
Gems ***************
@Bbk ********
I see. Thanks! What are the required updates?
Bbk *********
Bbk *********
OP
@Gems **************
at CW immigration office ..they asked for the updated marriage cert which we had to do at the nearby district office 5km away for thb10 (eventhough our orriginal marriage cert was registered at Ban Rak)...BTW we were only required to submit this doc when we come to collect my passport abt 30min later
Bbk *********
Bbk *********
OP
@Gems **************
Hi..sharing the guide from Tod Daniels that i used for my ext application...."This is a general list, it is NOT office specific and you would be well served to slog on out to C/W before you're going to apply and get the hand out from Section L-1 out there.

That way you know exactly what they're wanting
Ant ***********
Ant ***********
“ under consideration “

✔️👍
Tod *********
Tod *********
@Colin ********
&
@Ant **********
they do realize that's the 21 day under consideration stamp and that they show back up Jan 30th like the stamp says to get the year extension inked in (y)

Thanx for pointing it out though 🙂
Bbk *********
Bbk *********
OP
Bbk *********
Bbk *********
OP
@Tod ********
...yes ... I will get the 1 year extension stamped on Jan 30th and also buy the multiple entry pass
Colin *********
Colin *********
@Ant **********
hopefully
@Bbk ********
realises that and doesn't think that it is the actual stamping in of the Extension.
Bbk *********
Bbk *********
OP
@Colin ********
...yes I am aware of it. Thanks

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