Hiya
I am in Thailand - I have a UK passport and entered on the 30-day, no visa needed entry.
I have heard that it’s possible to stay slightly longer (max 30 extra days) via a specific process - anyone know how to do this?
Many thanks
TLDR : Answer Summary
To extend your stay in Thailand for an additional 30 days beyond the initial 30-day entry without a visa, you can go to your nearest immigration office. The extension will cost 1900 baht. It's advisable to check the location of your nearest immigration office since there are over 80 in Thailand.