Get the Thailand visa for UK citizens

No. United Kingdom citizens do not usually need a visa for short tourist visits to Thailand. However, they must complete the Thailand Digital Arrival Card (TDAC), a digital customs declaration required of all foreign visitors before arrival.

With iVisa, United Kingdom citizens can get their Thailand Digital Arrival Card as fast as 1 day.

United Kingdom citizens can stay in Thailand visa-free for up to 30 days, depending on entry conditions.

Yes, UK travelers may apply at a Thai Immigration Office for an extension of up to 30 days beyond the initial stay under the exemption (for example, from ~60 days to ~90). However, approval is not guaranteed and is at the discretion of immigration.

Travel under the exemption must be for tourism or short-term visits (e.g., leisure, visiting family/friends). Working, long-term study, volunteering, of doing business/employment is not permitted under this exemption.

You can be fined THB 500 per day for each day you overstayed your permitted stay. The fine is capped at THB 20,000 (typically reached when you've overstayed for 40+ days). Payment is normally made upon departure from Thailand at the airport or at an immigration office, in cash. However, additional consequences may be imposed: if you overstay by more than 90 days, the situation moves from a simple administrative fine to more serious consequences, including detention, deportation, and a ban on re-entry to Thailand.