C3 · Thai document legalisation

Thai Document Legalisation & Apostille Status

Thailand's Apostille Convention enters into force on 28 February 2027. As of September 2026, Thailand does not issue Apostilles. We review the receiving authority's requirements and prepare translations and consular legalisation for the route currently available.

•Check the receiving authority's requirements
•Certified Thai↔EN translation
•Original document authentication
•Corporate, personal & academic documents
•MFA and embassy route where required
•Courier-ready return

Pricing: contact us for a quote · Fees: ask our team for a quoteTurnaround: assessed on your documentsLegal basis: Hague Apostille Convention 1961

Call 092-0170000 LINE @THAIL Contact@thailaw-accounting.co.th Request a quote

An apostille is a standardised certificate under the Hague Apostille Convention confirming a signature and seal on a public document. Thailand's Convention takes effect on 28 February 2027; as of September 2026, Thailand does not issue apostilles for Thai documents. Thai Law & Accounting checks the receiving authority's requirement and helps prepare translations and the current consular legalisation route. Send scans to LINE @THAIL for a scope review.

What the apostille actually certifies

An apostille verifies the authenticity of the signature, the capacity of the signatory, and the seal or stamp on the document. It does not verify the content of the document itself. That distinction matters because receiving institutions often phrase their request loosely: some ask for a 'certified copy', some for a 'legalised document', and some specifically for an apostille. Each is a different layer, and filing the wrong one is the most common reason a file has to be redone.

Once the Convention takes effect for Thailand, eligibility for an apostille will depend on the document and competent authority. For current consular legalisation, confirm whether the recipient requires an original or a fresh certified extract; an uncertified photocopy is generally insufficient. Check the issuing office and receiving authority before ordering a new copy.

Certifies signature, capacity and seal — not the content
Not issued for Thai documents as of September 2026
Convention enters into force for Thailand on 28 February 2027
Private documents must be notarised or certified upstream first

The order of operations we use

We start from the receiving institution's written requirement and work backwards. Before 28 February 2027, do not assume an Apostille can be issued for a Thai document, even if the destination is a Convention member. We confirm the available consular and embassy steps, refresh the underlying document where needed, and arrange the requested translation. We return the completed file with scans for your records.

Names are the single most frequent failure point. The spelling on the translation must match the passport exactly, including middle names and transliteration choices. Where a person has changed name, the supporting change-of-name record travels with the file.

Confirm the destination requirement in writing
Obtain a recent certified original or extract
Prepare and proofread the certified translation
File for current consular legalisation and embassy attestation if required
Return the file with scans and a record of what was issued

Frequently asked questions

Is an apostille the same as embassy legalisation?

No. An apostille is a separate Convention process. Thailand's Convention takes effect on 28 February 2027; until then, check the current consular and embassy route required by the receiving authority.

Can you apostille a document issued outside Thailand?

A foreign public document is apostilled by the competent authority of the country that issued it. We can advise on the inbound route for using such a document in Thailand.

Do I need a translation first?

Usually yes when the receiving institution does not read Thai. We prepare the certified translation and keep it in the same file so the certification covers the correct set of pages.

Do you need the original document?

The receiving and certifying authorities may require an original or a copy certified by its issuer. Send a scan so we can check the requirements before you courier the document.

How much does it cost?

It depends on the document type, page count, number of sets and the certification layers required. Send scans to LINE @THAIL for a quotation based on the actual scope.

How long does it take?

Timing depends on the issuing office queue and the destination requirement. We give an estimated window after reviewing the actual documents and update you when the status changes.

A working guide to Thai document legalisation

Thai document legalisation and Apostille status can involve different document checks depending on the receiving authority. Confirm the intended use and destination before arranging translation, a notarial signature, or consular legalization. For a review of your specific outbound Thai documents and receiving-authority requirements matter, contact us on LINE @THAIL or by email at Contact@thailaw-accounting.co.th.

Documents to discuss for outbound Thai documents and receiving-authority requirements may include original public document, certified translation, applicant passport / ID, power of attorney (if delegated), payment receipt, return-courier form; confirm the final checklist with the receiving authority. Check the current acceptance criteria with the Legalization Division, Thai MFA (Chaeng Wattana).

How the workflow runs end-to-end

First identify the issuing authority, the person signing, the destination and the receiving body's current requirements. The necessary steps may include translation, certification or consular legalization, but not every document needs every step. Confirm the sequence before sending originals.

Who this service is for

Individuals and businesses may need different supporting documents. Share the document type, destination and receiving authority so the applicable route can be checked for your matter; requirements can change without notice.

Coverage, fees, and timing

Our offices are in Bangkok (Lat Phrao 95) and Khon Kaen. For other locations we can discuss remote document intake and coordination with partners where available. Fees and timing depend on the document, destination and relevant authorities; ask for an individual quote.

Quality assurance and confidentiality

Check names, dates, document versions and the receiving authority's instructions before filing. Acceptance is decided by the receiving authority; ask the team which evidence and original documents are required in your case.

Start your Thai document legalisation and Apostille status matter today

Reach Thai Law & Accounting on LINE Official @THAIL, email Contact@thailaw-accounting.co.th, or phone 092-0170000. Please book an appointment in advance at our Bangkok office (Lat Phrao 95) or Khon Kaen head office; in every other province our team can coordinate with a local partner where available. Fees: ask our team for a quote. Timing is assessed for your documents. Confirm the required documents and any consultation terms with our team before proceeding with your outbound Thai documents and receiving-authority requirements matter.

Points to check

Before you proceed: Thai document legalisation and Apostille status

“Before proceeding with Thai document legalisation and Apostille status, check names across documents and confirm the receiving authority's requirements to avoid incomplete submissions.”

Thai Law & Accounting Services Co., Ltd.

ทีมข้อมูลบริการ

Scope to assess

Service tier	Fees
เอกสารเดี่ยว / Single doc	Ask our team for a quote
แปล + Notary / Translation + Notary	Ask our team for a quote
MFA legalization	Ask our team for a quote
Embassy chain / สถานทูต	Ask our team for a quote

Workflow

01Review documents and the receiving authority's requirements
02Assess scope, fee, and timing for the specific case
03Process the documents and coordinate any further certification
04Check completeness and deliver by the agreed method

Before submission

For Thai document legalisation and Apostille status, confirm names, document types, and the receiving authority's current requirements before starting. Timing and fees depend on each case.

Please confirm current requirements with the receiving authority

Consular legalization, Apostille and embassies

Explore the site

Go deeper on Legalization at the Department of Consular Affairs

These guides outline possible certification steps; confirm the receiving authority's current requirements before filing:

Not sure which route applies? Send us the scan — LINE @THAIL · 092-0170000 · Contact@thailaw-accounting.co.th

Documents usually required

Freshly issued original Thai civil or corporate record from the issuing office
Complete English translation of every page, with the translator's statement of accuracy
Copy of the document holder's passport or Thai national ID card
Power of attorney with ID copies of both parties if someone else files on your behalf

Common reasons a bundle is rejected

Countries outside the Apostille Convention still need a further endorsement at the destination embassy.
Translations that use an unofficial English name for a Thai agency are sent back for correction.
Spell every name exactly as it appears in the passport, across every document in the same bundle.

Prefer not to handle the chain yourself? Send the scans and we run every step for you, from translation to the final endorsement.

How the process runs — Legalization at the Department of Consular Affairs

Obtain a freshly issued original from the office that produced the record and check that every page is present.
Prepare a complete translation with the translator's statement of accuracy attached.
File for legalization at the Department of Consular Affairs, Ministry of Foreign Affairs, with the original and the translation together.
Complete the next certification layer required by the destination country — Apostille, or legalization at that country's embassy in Thailand.
Collect the finished bundle, scan a full copy for your records, then submit it in the format the receiving authority specifies.

Fees and processing times are set by each authority and vary by document and destination — confirm them with the responsible agency.

Handling it yourself vs letting iLC run it

Aspect	Doing it yourself	With iLC
Working out which steps apply	You read each authority's rules yourself, and usually learn a step was missing only after the bundle is refused.	Our advisers review the documents before work starts and sequence translation, notarisation, MFA, and embassy in one pass.
Time spent filing	Repeat trips to each office, queueing and collecting in person.	We file on your behalf; you send scans and receive the finished set by post or courier.
Risk that the translation is refused	Agency names, job titles, and the certification wording often do not match what the receiving office accepts.	We use terminology and certificate formats the receiving authority has accepted before, with two-stage proof-reading.
If the bundle is rejected	You diagnose the cause and refile yourself, losing a full cycle.	We identify the cause, correct it, and refile without you starting over, with progress reported along the way.

What clients typically use this for

Visa and residency filings
Marriage and family registration abroad
Cross-border corporate transactions

Talk to us before you commit to anything

Many clients arrive with one set of documents while the destination expects a different one. We start by asking where you are filing, for what purpose, and by when — then tell you plainly what is required, including the steps you can complete yourself at no extra cost. A team with over 15 years in cross-border documentation is available before you spend time on the wrong route.

Destination requirements explained in plain language.
A clear statement of which steps your case needs and which it does not.
Help sequencing multiple documents across multiple authorities.

Consult us at LINE @THAIL · 092-0170000 · Contact@thailaw-accounting.co.th

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