When can I withdraw my 800,000 THB down to 400,000 THB in Thailand after a visa extension?

It’s too much trouble! I just leave the 800,000 in the Bank! What happens if you have an Emergency? You should have at least 1.2 million Bhat in the Bank! Or Retire in the Philippines it’s cheaper! Less paperwork!

The rule states you can go below 800,000 but not under 400,000 3 months from DATE OF APPLICATION. I speak from first hand experience at CW. For the last few years I have withdrawn my balance to under 800,000 just after 3 months from renewing my extension and have had no issues. They have also clarified this to me numerous times after each renewal when I make sure of the date I can withdrawal. So in your case if you obtained your renewal on Feb 15, 2024 - you can withdrawal 90 days after that. Just to be safe I would make it 100 days so some time around late May you should be ok.

Calendar months , so anytime after 16th May

Remember the new income tax rules, if u draw down on the 800k you have to top it up again and this might put u in a higher tax band for that year!

Personally if I was that worried about it I would go with the longer of the two + 1 day to avoid any problems 😉

The rule is written ambiguously, BUT it's being interpreted as 3 months after your new extension takes effect (which in theory is the day your previous extension ran out)

I would say on your stamps you can draw the money down any time after May 23,

It is 3 calendar months date to date so don't mis-count thinking it's 90 days. Had a friend do that, and when he went for his next yearly extension the officer looked at the yearly transaction report and saw that he'd pulled the money out 2 days early. She told him he was technically on overstay since the day he failed to meet the requirements for his current extension