When does a Retirement Extension start if I renew 60 days before expiration?

The new 12-month extension for a Retirement Non-O visa will align with the current expiration date of your visa stamp, not from the date of application. It's important to note that many immigration offices in Thailand do not allow extension applications until 30 to 45 days prior to the current stamp expiry. In specific cases, like Chaengwattana Immigration in Bangkok, you can even apply only when 3 days or less are left on your current stamp.