Can I switch from the THB 800K modality to the THB 65K modality for my retirement extension in Thailand?

@Max *******

I guess the question you need to ask your local immigration office is whether they will allow you as a Dutch citizen to use the monthly income method

@Max *******

there's not a single immigration office in Thailand that will accept any income letter from anywhere. The ONLY thing they will accept is a certification of income from an embassy, or proof of funds deposited from abroad for 12 months.

@Max *******

you use whichever location the TM30 is showing where you are currently. If you move to Samui then a new TM30 is filed within 24 hours, and the immigration office closest to that is the one you use. You could normally change over to the other means of meeting the financial requirement, but you used an agent as a loanshark to cover the money requirement, and this is where the problem lies. You won't be able to show immigration your bank book proving the balance never dropped below bt400,000 for the whole year. Even though you are changing over, you must still show you met the requirements for the lump sum option, meaning you've got to show with your bank book, and letters from your bank, that for three months after you got your stamp the bt800,000 was in your account, then that the balance never dropped below bt400,000 for the rest of the year. Your bank won't be able to do that because you used an agent loanshark, and they don't give those things out.

@Max *******

an agent's only goal is to make a profit. They don't care if they give you good advice.

Most offices will allow you to switch from 800,000 to the 65,000 per month, but every office also has their own rules so the only people who could answer that for sure would be Samui immigration.

You just have to be very careful because you need to meet all the rules from the previous 1 year extension while also meeting the rules for next year.

So if they allow you to switch you would need to show that your bank account had 800,000 when you applied for your previous 1 year extension and that you kept the 800,000 in the bank for 3 months after your extension and then never let it drop below 400,000 the rest of the year. They will ask you for the full 12 months of bank statements to confirm this.

You'll also need to show proof that you transferred in 65,000 baht every single month from overseas for the 12 months before you apply for your next extension, which is what you'll need to show to prove you qualify. So you'll be meeting 2 different requirements at the same time to switch.