Do UK travellers need a visa for Thailand?

No — British citizens do not need a visa for a holiday in Thailand. Under Thailand's visa-exemption scheme, UK passport holders can enter visa-free for up to 60 days for tourism, and that stay can be extended by a further 30 days locally if you wish, giving up to 90 days in total. There's no visa to apply for and no fee.

There is, however, one new step everyone must complete: since 2025, all arrivals must fill in the Thailand Digital Arrival Card (TDAC) online before they travel. It's free and quick, but it's mandatory — so it's the one thing not to forget. Your passport also needs to be valid for at least six months with a blank page.

Below we explain the 60-day rule, the TDAC in detail, the passport requirements, health advice and a few practical points — so your arrival is smooth. Entry rules change, so always confirm the latest on the UK government's Thailand travel advice pages before you fly.

The quick answer

• No visa needed for UK tourists — visa-free for up to 60 days.
• You can extend by 30 days locally (up to 90 days total) if you want to stay longer.
• You must complete the TDAC (Thailand Digital Arrival Card) online before arrival — it's free and mandatory.
• Register the TDAC within 3 days before you travel.
• Passport must be valid for at least 6 months with at least one blank page.
• Occasionally you may be asked for proof of onward travel — keep your return ticket handy.
• No compulsory vaccinations from the UK; check health advice with a travel clinic.
• Always check the latest GOV.UK Thailand advice before travelling.

Under Thailand's visa-exemption arrangement, UK travellers arriving for tourism are granted a stay of up to 60 days — comfortably more than enough for a typical holiday. If you fall in love with the place and want longer, you can usually extend once by a further 30 days at a local immigration office within Thailand, for a small fee, taking you to a maximum of 90 days.

A few practical notes: the allowance is for tourism and short visits (not work); you'll be given your permitted stay on arrival; and while it's not always checked, border officers can ask to see onward or return travel, so have your return ticket accessible. For the vast majority of visitors on a two- or three-week trip, the 60-day exemption means there's simply nothing to arrange in advance beyond the arrival card below.

This is the one genuinely new requirement, and the thing most likely to catch people out. Since 1 May 2025, everyone entering Thailand — by air, land or sea — must complete the Thailand Digital Arrival Card (TDAC) online before arrival. It replaces the old paper arrival slip.

• It's completed on the official immigration website (tdac.immigration.go.th) and is free — beware of copycat sites that charge a fee.
• You can submit it within three days before you arrive in Thailand.
• You'll enter basic details — passport, flight, and where you're staying — and receive a confirmation to show on arrival.
• Complete one for each traveller, including children.

It only takes a few minutes, but it is mandatory, so add it to your pre-departure checklist. On a guided trip we'll remind you and can help you complete it if needed.

Passport. Your passport must be valid for at least six months beyond your arrival date and have at least one blank page. Make sure it's undamaged.

Proof of onward travel and funds. Thai immigration occasionally asks visitors to show an onward or return ticket, and in rare cases proof of funds, so keep your return flight details to hand. Arriving on an organised tour with confirmed bookings makes this a non-issue.

Extensions and overstaying. If you want to stay beyond 60 days, arrange the 30-day extension at an immigration office before your time runs out — don't overstay, as Thailand fines overstayers per day on departure.

Combining countries. If you're pairing Thailand with Vietnam, Cambodia or Laos, check each country's own entry rules, as they differ.

Vaccinations. No vaccinations are compulsory to enter Thailand from the UK, though a travel clinic may recommend some (such as hepatitis A and typhoid) depending on your plans. A yellow fever certificate is only required if you're arriving from a risk country. See your GP or travel clinic 4–6 weeks before departure — this is general guidance, not medical advice.

How our experience helps

Thailand's entry process is straightforward, and on our trips we make sure nothing is missed: we flag the TDAC arrival card in good time and can help you complete it, you'll have confirmed accommodation and itinerary to show if asked, and our local team knows the airport routine. Our travellers consistently find that entering Thailand is quick and easy — the warm welcome the country is famous for starts right at the airport.

Frequently asked questions

Do UK citizens need a visa for Thailand? No. British tourists can enter visa-free for up to 60 days, extendable by a further 30 days locally. There's nothing to apply or pay for in advance.

What is the TDAC and do I need it? Yes — the Thailand Digital Arrival Card is a mandatory online form all arrivals must complete before travelling, free of charge, within three days of arrival. It replaced the paper arrival card in 2025.

How long can I stay in Thailand without a visa? Up to 60 days on the visa exemption, with a possible 30-day extension locally, for a maximum of 90 days.

How much passport validity do I need for Thailand? At least six months beyond your arrival date, plus at least one blank page.

Do I need a return ticket to enter Thailand? It's not always checked, but immigration can ask for proof of onward travel, so carry your return or onward ticket.

Do I need any vaccinations for Thailand? None are compulsory from the UK, but a travel clinic may recommend some depending on your itinerary. Yellow fever is only required if arriving from a risk country.

Related reading

• Is Thailand safe for travellers over 60?
• The best time to visit Thailand
• How many days do you need in Thailand?