How long is the letter from Bank stating the retirement funds are in your account good for

I have used one up to a week old. Don't forget to update the account at the same time, so that it shows the same balance as in the account letter.

Depends on the officer who you see.Can vary,best to do it the day before and update your pass book at the same time.

I just finished my marriage extension a couple of days ago. Every year, it seemed they found something, some other hoop for me to jump through. One of them was the age of the letter. I have gradually eliminated every possible hoop. I keep a three ring binder with extra pictures and copies of anything they could conceivably ask for. One of the things I now do is i go to the bank and get the letter first thing in the morning before appearing at immigration for the extension. I just make that a habit. It been a few years now since they have found a new hoop.

Years ago I was told by my immigration officer that the bank letter was valid only for 3 days - including the current day and the day it was issued. No exceptions. I have had no problems since.

I went in May (to Pattaya) with UK Embassy letter + bank letter from same day. I was attended to by the Belgian (Robert). He binned the bank letter as not needed. He told me Embassy letter would suffice. I wasted 100 baht & 50 kms round trip to bank.

My bank give me the letter free . . .

I have used one up to a week old. Don't forget to update the account at the same time, so that it shows the same balance as in the account letter.

And make a transaction (eg. deposit 100 Baht), so the last transaction date is the same as on the letter.