Can I extend my one-year extension of stay earlier than 30 days at the Samut Prakan Immigration office?

@Bob *********

You were “bringing in the money” sounds like you either had a marriage extension or are from a country whose embassy still provides income verification letters. Retirement extensions offer two ways to qualify, with 800k in the bank the only option for most people, especially if their embassies no longer provide letters. This is because the monthly income method requires proof you’ve transferred funds from a foreign source into a Thai bank account in your name only. In the OP’s case, he’s been here for a year already, so theoretically he can go the monthly income route if all requirements are otherwise maintained.