Know Before You Go to Thailand

For British-citizen passport holders, FCDO’s current advice says visa-exempt tourism entry changed to up to 30 days from 15 September 2026. It also distinguishes tourism from business travel. That is a passport-specific example, not a universal permission for every traveller. Use the Thai embassy or official e-Visa eligibility route for your own circumstances.

The visa’s validity for entry and the permission to remain after arrival are different dates. Plan the trip against the permission granted, including the time needed for any eligible extension. Do not rely on an agent’s promise of admission or on repeated tourist entries for a different purpose.

For British visitors, the published passport rule is at least six months remaining after arrival and at least one blank page. Other travellers should verify their own document requirements with the relevant Thai authority and airline.

Use the Immigration Bureau’s official TDAC website and instructions. Submit within the three-day period before arrival specified by the system, using the passport and journey you will actually use. Prepare your arrival details, first accommodation address and an email address you can access.

Review the information before submitting, save the confirmation offline and follow the official update or new-submission instructions if details change. The arrival card is not a visa and does not replace the documents or immigration decision for your entry route. Use the official domain rather than an unsolicited payment or document-upload link.

Ask a travel-health professional about your itinerary, existing conditions and any vaccinations or prevention you may need. Check that insurance fits the duration, activities and places you intend to visit, including medical assistance or evacuation where relevant.

Bring medicines in identifiable packaging with the prescription or clinician’s letter needed for your trip. Controlled medicines may require additional checks or permission; use the pharmacy guide and official Thai FDA tools before travelling. Do not assume that a medicine legal at home can be carried into Thailand on the same basis.

Leave room for queues, traffic, weather and tiredness rather than booking a tight connection immediately after an international arrival. Keep essential medicines, valuables and the documents needed for arrival in your hand luggage.

At the accommodation, check contact details, room access and the route out of the building. Save the local medical emergency number, 1669. Check the next journey while you have a stable connection and enough time to change the plan. A short first-day programme is often easier to recover from than a missed non-refundable activity.

This is an arrival-preparation guide. For festival dates or the best season for a particular region, use dedicated destination and event guidance rather than treating one arrival checklist as a weather forecast.