In this guide
  1. Apostille vs. Embassy legalisation for Thailand
  2. Thailand's Hague status & what it means
  3. The Brighton → Thailand route step by step
  4. Cost & timing for this route
  5. Destination-specific requirements

Apostille vs. Embassy legalisation for Thailand

Until 28 February 2027, an apostille from the United Kingdom to Thailand will not be accepted by Thai authorities. You must go through consular legalisation instead. This means a separate visit to the Thai embassy in London to have an official sign and seal your paper after it gets the apostille stamp. The situation will change significantly for those planning to use British documents in Thailand next year. Getting the right stamp now means following a two-part process that adds extra steps beyond what the apostille alone provides.

Thailand's Hague status & what it means

Thailand signed the Hague Apostille Convention with an effective date of 28 February 2027, which means that until then, Thai authorities require full consular legalisation of foreign documents. Up to that date, an apostille alone does not meet Thailand's current standards. The current stance creates a specific challenge for British nationals dealing with Thai immigration or property transactions. The embassy in London provides a complete legalisation service that validates both the document's origin and the apostille itself through their own verification. This temporary gap between current practice and the upcoming convention rules affects the cost, timing and approach for anyone submitting papers to Thailand.

The Brighton → Thailand route step by step

Start by contacting Brighton & Hove Register Office at Bartholomew Square to order a fresh certified copy of any civil record like a birth or marriage certificate. This meets the requirement for many official uses while letting you keep the original certificate safe. The Legalisation Office, which is the UK's authority for apostilles, handles these requests by post with an official fee. Since an apostille for Thailand is not yet valid, you would then send these legalised papers to the Royal Thai Embassy in London for the final consular stamp. This last step provides the confirmation Thai officials currently need to accept the document.

Cost & timing for this route

The total cost depends on whether you choose standard or express processing at each stage through the consular legalisation route. Standard processing takes several weeks to account for postal transit and handling time within both UK and Thai systems. The UK government charges a set fee for the apostille service, which is standard across England. The Thai embassy sets its own consular fees for legalising documents once they have been through the UK system. Combine the apostille cost with the consular fee to get an accurate figure for verification of documents before February 28, 2027.

Destination-specific requirements

What you need for an apostille for Thailand includes careful consideration of the document's purpose and the relevant Thai authority's specific stipulations. After February 2027, a single apostille will be sufficient for use throughout Thailand without further certification, as long as your document comes from a UK authority like Brighton's register office. Some Thai offices might request a translation of the apostilled document into Thai, although this is less common now than in previous years. The translation often needs to be completed separately, typically by a translator approved or recognised within Thailand. Always check with the Thai entity receiving your papers to ensure they will accept your document once you have it.