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How is the 2-month seasoning period calculated for a Thai O visa extension?

Mar 17, 2025
a month ago
Eric *********
ORIGINAL POSTER
Applying for an O extension at Cheang Watthana today and was told to come back for this reason:

my visa expires on march 28. I was able to book an appointment for today, the 17th. I got my bank balance up to 800k on January 24, 2 months and a few days to season or so I thought. I did not know 2 months seasoning is calculated back from the day youโ€™re at immigration to ask for an extension, NOT 2 months back from the day your visa expires. I have to go back March 24-28.
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TLDR : Answer Summary
The user learned about the seasoning period requirements for their O visa extension application at Cheang Watthana, realizing that it is calculated from the date of application rather than the visa expiration date. They need to wait until their bank balance has been seasoned for two months prior to their application date, which necessitates returning between March 24-28.
Tod *********
my apologies for cross posting the wrong info into your thread,

Sorry about that ๐Ÿ˜• guess it was a senior moment ๐Ÿ˜ฎ
Tod *********
Totally correct, always been that way for the seasoning period using banked money method. Your funds need to be seasoned 2 months before you APPLY for your extension.

So showing up today to apply (no matter when your current stamp expires) and you would have had to have the funds banked by about Jan 16th-17th

You're earliest day would probably be the 24th (although because one of the seasoning months only has 28 days they probably would prefer you show up after March 25th)

You will need to get a new bank letter, update the bank book and get them to reprint the 3 month statement (which they can do on the spot) when you go apply
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