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What are the steps and requirements for applying for a 90-Day Non-O Visa and extending it to 12 months in Thailand?

Feb 8, 2026
3 months ago
Eric ********
ORIGINAL POSTER
Soon I will be applying for the 90-Day Visa from the US, then when in Thailand extending the Visa to 12 months. Is there a website that shows definitively the steps to do so. and what documentation is required by the immigration department in Thailand?
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TLDR : Answer Summary
The user is seeking detailed steps and documentation requirements for applying for a 90-Day Non-O Visa from the US and subsequently extending it to a 12-month stay in Thailand. The community suggests checking the Bangkok Immigration website for official information and gathering local requirements at the immigration office in Thailand due to variations across offices. Credible comments discuss the necessity for a bank deposit of 800,000 THB for the visa extension, the importance of maintaining the appropriate financial evidence, and clarifications on visa types. Community input emphasizes the need for personal visits to immigration offices for the most accurate and region-specific information regarding documentation and procedures.
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Russell ********
Areas get a local list before you apply, there may be some subtle differences
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Tod *********
this is the bangkok Immigration website and the tab for retirement extension.

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GO to your immigration office once you're here and get their hand out listing the requirements because there are over 80 offices in the country and some require different things.

This is a general list of what's required, but it is not office specific (which is why I said go to the immigration office that serves the area where you will live)
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Tod *********
@Eric *******
the year OA visa is a totally different type than the 90 day O

With the OA you can show proof of funds in your country to get the visa issued and then when you get here you're stamped in for a YEAR

With the O visa you can also show proof of funds in your country to get the visa issued BUT once you're here you only get stamped in for 90 days and there is NO WAY to show proof of funds other than by banking 800K in a thai bank account in your name only
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Eric ********
ORIGINAL POSTER
@Tod ********
I understand how it works, finally! Thank you
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Eric ********
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Jack ********
@Eric *******
when you apply for the non OA using the evisa website you can show the equivalent of ฿800K in a US bank account
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Eric ********
ORIGINAL POSTER
@Tod ********
looking through the requirements you sent me I see Proof of Funds Method C, combination method. It's not clear to me what they are saying there. Can you shed some light on that? Is that method still applicable or would that be up to the immigration office in my particular area to offer that option?
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Tod *********
@Eric *******
You have ONE choice if you come in on a 90 day Non-O visa and that's to open a thai bank account in your name only transfer in 800K baht and then after 2 months you can apply for the year extension at the immigration office

There is no monthly income method for the first year (as you come from a country whose embassy here no longer issues the income affidavit notary letter) AND

There is no "combination method" for the first year

You come in on a 90 day Non-O you bank the money for the first year extension
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Eric ********
ORIGINAL POSTER
@Tod ********
clear as mud now. Thank you so much
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Tod *********
@Eric *******
try not to get ahead of yourself. Just know, IF you show up with a 90 day Non-O visa you're going to bank the 800K to get a year extension.
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Colin *********
@Eric *******
If you want to go to the monthly income method for your second Extension of Stay, try to organise the 65k+ THB transfers into your Thai Bank Account in the early part of each month, but definitely not in the last few days of each month. I've seen a couple of posts recently where people, I think have been having the money arrive, say, on the 30th or 31st and find that maybe the transfer has arrived early in the next month. That's meant that a month has seen no deposit and another two deposits, which, of course doesn't meet the requirement of $65k+ baht deposits every month. Immigration won't, or most likely won't accept that & you'll have to start the Visa process from scratch again.
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Eric ********
ORIGINAL POSTER
@Colin ********
If you have to restart the Visa process, it can be done inside Thailand? Hope so, since I would already be living there
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Eric ********
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Stuart ***********
You would definitely need to talk to your immigration office about the combination method. I think very few will allow this, so if you don't want to deposit 800k, your best option is probably using a non-OA visa, but you will then need mandatory insurance from a selected few companies and police clearance.

If you use the non-O route, you would need 800k for the first extension, but if you deposit 65k each month for the full 12 months of the extension, at the second extension you can use the monthly sum as your financial evidence and withdraw the 800k.
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Eric ********
ORIGINAL POSTER
@Stuart **********
after the extension I could withdraw the entire 800k? Don't need to leave any in the Thai bank account?
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Graham ******
@Eric *******
no, the 12 month extension is issued under the conditions that you maintain the 800k for 3 months then never fall below 400k for the rest of the year
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Eric ********
ORIGINAL POSTER
@Graham *****
I see that now. Thank you
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Stuart ***********
I forgot to mention, you can use the 65k as soon as it arrives for monthly living expenses and it must show as an international transfer of funds.
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Tod *********
@Stuart **********
the thing is they can't use monthly income method for the first year extension on a new Non-O 90 day visa because you need 12 months of incoming transfers of the minimum amount before you can use monthly income by transfer method
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Stuart ***********
Yes i know Tod. I said 'if you use the Non-O route, you would need 800k for the first extension, but if you deposit 65k each month for the full 12 months of the extension, at the second extension you can use the monthly sum as financial evidence..'
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Stuart ***********
Yes I said that in my first reply Tod.
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Stuart ***********
Yes, that's what I did. You must ensure that at least 65k is paid in every single month. Then there's no requirement to keep 800k in a Thai bank for the non-O after the first year extension. Again, when you are in Thailand, double check with your immigration, but I use Hua Hin and they accept this method.
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Eric ********
ORIGINAL POSTER
@Stuart **********
Great information. Thank you so much!
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Stuart ***********
You are welcome. For the non-OA you can use your USA bank statements to prove you have access to the necessary funds. The logic is that you are buying insurance, so you don't need money inside Thailand. I understand from previous posts that in the past people used to arrive in Thailand with no insurance and little money, then get injured or unwell and rely on Thailand to pay for the medical bills. So these are the ways that Thailand mitigates against that happening.
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Stuart ***********
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Jack ********
@Eric *******
you can’t use this method for the first yearly extension. You need the 800K in the bank.
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Eric ********
ORIGINAL POSTER
@Jack *******
so, as an American there is no getting around the 800k deposit with either the non-o or the non OA. Is that correct?
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Eric ********
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Eric ********
ORIGINAL POSTER
@Tod ********
very helpful advice. Thanks so much Tod
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Tod *********
best of luck with it (y)
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Tod *********
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