Did my retirement extension last week with minimal fuss. A couple of points which may be new/helpful to others. I may have missed this before but immigration now has a listing of extension requirements online. Retirement is #22. Since my eyes glaze over when people talk about the 800K in the bank, I go the 65K a month route.
Can't seem to copy and paste from the drop down. #3 says evidence of income of no less than 65,000 baht a month. #5 Must have annual earnings and funds deposited