Certified Translation Thai-English: Embassy Acceptance & Pricing
What makes a Thai-English translation 'certified' for visas, courts, and embassies. Pricing, turnaround, and how to verify the translator is recognized.

A certified translation is a Thai-English (or other-language) translation that is signed, stamped, and verifiable by a recognized translator. Embassies, courts, the Ministry of Foreign Affairs, and Thai government offices all require this level of certification for foreign-language documents.
When is certification required?
- Visa applications (spouse, work, study, retirement)
- Marriage and divorce registration at Amphoe
- Court submissions and notarized affidavits
- Driver's license conversion and immigration
- Company registration with DBD
ILC's translator credentials
Our translators include MoJ sworn translators, NAATI-credentialed translators for Australia, and embassy-recognized translators for German, French, Japanese, Chinese, and 35+ other languages. See all languages we cover.
End-to-end workflow
Translation → certification → notarization → MFA → embassy legalization. ILC handles every step under one roof.
Frequently asked questions
What counts as a certified translation?
Translation by a qualified translator who signs and stamps a certification statement, often notarized. Embassies and government offices require this for foreign-language documents.
Is NAATI accepted in Thailand?
NAATI certification is required by Australia. ILC has NAATI-credentialed translators for Australian visa, citizenship, and study documents.
How much does certification cost?
From THB 500 per page plus notarization (THB 800). Volume and language pair affect the final quote.
Go deeper on Legalization at the Department of Consular Affairs
Our advisory team has run these certification chains for 15+ years. Two references we keep updated for clients:
- Step-by-step playbook: documents, order of certification, rejection risks
- Route comparison: which certification path your receiving authority accepts
Not sure which route applies? Send us the scan — LINE @NAATI · 080-5578887 · ilc@thainotary.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.
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 @NAATI · 080-5578887 · ilc@thainotary.co.th
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