MFA-ready translations
Formatted and certified to the Legalisation Division's current criteria.
Agency-accepted certification
Certified translation for Thai government agencies
A translation is only as good as the counter that accepts it. We prepare each file to the standard of the specific agency that will receive it, which is why our documents are not sent back.
Format decides acceptance
Thailand has no single sworn-translator register, so 'certified' means whatever the receiving agency says it means. The Ministry of Foreign Affairs, immigration, the district office and the courts each apply their own conventions for declaration wording, name transliteration and date conversion. We ask which counter the document is going to before a single word is translated, and build the certification around that answer.
What we prepare
Immigration bundles
Translations matched to passport spelling for visa and extension files.
District office documents
Marriage, birth, death and name-change records in Thai civil-registration form.
Court and legal filings
Contracts, judgments, affidavits and evidence with the declaration courts expect.
Corporate and DBD filings
Company affidavits, articles, resolutions and financial statements.
Academic and professional
Transcripts, degrees and licences for universities and professional councils.
How a certified translation runs
1. Destination check
We confirm which agency receives the document — that decides the format.
2. Source review
Pages, stamps and name spellings verified before translation begins.
3. Translation
Prepared by a translator experienced with that agency's conventions.
4. Certification
Signed and stamped declaration attached in the accepted wording.
5. Legalisation
MFA and embassy legalisation arranged where the use requires it.
6. Delivery
Hard copies couriered or collected, with scans sent the same day.
Playbook: certified translation that the receiving agency accepts first time
Thailand has no single national register of sworn translators, so “certified” means whatever the receiving body accepts. The Department of Consular Affairs, the Immigration Bureau, district offices, the courts and embassies each apply their own certification wording, name transliteration and Buddhist-era date conversion. Naming the destination before work starts is what determines the format of the whole file.
Documents to prepare
| Document | Issued by | Preparation note |
|---|---|---|
| Full-colour scan of every page, including reverse sides and seals | The document holder | At least 300 dpi, nothing cropped; the official seal and signature must be legible. |
| Passport page or Thai ID card of the document holder | Department of Consular Affairs / Department of Provincial Administration | Used to lock name spelling consistently across the whole bundle. |
| Name of the receiving agency and the purpose of filing | The document holder | For example the MFA, Immigration, a district office, a court, the DBD, an embassy or a university. |
| Earlier translations or bundles already filedif applicable | The document holder | So spellings and terminology match the file the agency already holds. |
| Name-change record, or marriage/divorce certificateif applicable | District office | Required when the name on the original differs from the current passport. |
| Power of attorneyif applicable | The document holder | Needed when we lodge legalisation at the MFA or an embassy on your behalf. |
Step-by-step process
- 1
Name the destination before a single word is translatedyou prepare
Tell us which counter receives the file: certification wording, layout and the need for onward legalisation all differ by agency.
- 2
Source review and name-consistency checkwe handle
We verify page count, seal legibility and passport spelling, and flag problems before work begins.
- 3
Translate to the receiving agency's conventionswe handle
Every element is rendered including seals and endorsements, Buddhist-era dates converted, and civil-registration terminology matched to the agency's usual form.
- 4
Two-stage proofing, then certificationwe handle
A second reviewer compares line by line with the source before the signed and stamped translator's declaration is attached.
- 5
Legalisation where the destination requires itwe handle
Outbound files usually pass the MFA, then the destination embassy. We run the sequence in order and report progress.
- 6
Deliver, and retain the file for reprintswe handle
Same-day scans plus couriered hard copies, with the file kept so reprints or a second agency version are quick.
Pitfalls — why files get rejected
Reusing one translation across different agencies
A translation accepted by immigration can be refused by the MFA purely on declaration wording. Confirm the format the destination accepts first.
Re-transliterating the name instead of copying the passport
A one-letter difference from the passport reads as a different person at the counter, and is the single most common cause of rejection.
Wrong Buddhist-era to Gregorian conversion
A one-year error on a birth or registration date breaks the match with the official record and forces the whole bundle to be redone.
Skipping the MFA step
Most outbound files must clear the MFA before the embassy; going straight to the embassy usually bounces.
Sending an incomplete scan
A reverse side carrying a seal or endorsement is part of the document; omitting it makes the translation incomplete.
Match the certification type to the destination
| Option | Best for | Authority | Caveat |
|---|---|---|---|
| Agency certified translation (COA) | Thai agencies, immigration, district offices, and files heading on to legalisation | The translation provider certifying accuracy | The receiving body decides what it accepts; confirm before ordering. |
| NAATI certified translation | Australian and New Zealand authorities | A NAATI-certified practitioner with a practitioner number | Thai agencies generally do not require this format. |
| Court-oriented certified translation | Litigation, evidence and filings before Thai courts | A translator declaring in the form the court expects | The declaration differs from ordinary agency work; tell us the case and court in advance. |
| Embassy-listed sworn translator | European embassies that publish their own translator list | A translator recognised by the destination embassy | Some embassies accept only their own list; this must be checked first. |
If you do it yourself
- You call the receiving counter yourself to learn which certification format it accepts — answers often differ between counters.
- You check every name spelling, date and document number yourself.
- You queue at the MFA and the embassy yourself, in the right order.
- If the bundle bounces you restart the whole cycle and lose the time again.
If we handle it end to end
- We confirm the certification format with the destination before translating.
- Two-stage proofing and one locked spelling across the entire bundle.
- We run the legalisation chain end to end and report progress.
- We keep the file so reprints or a second agency version are quick.
We advise, not just process paperwork
- With more than 15 years on Thai official documents and legalisation, we work from what each counter actually accepts, not only from the published guidance.
- We advise on the full sequence before taking the job; if a translation is not needed yet, we say so.
- Where several agencies are involved we plan one bundle that carries through, avoiding duplicate translations.
NOTARY & APOSTILLE TRANSLATION INTERPRETERS (NAATI) CO., LTD. — a team with more than 15 years of work in translation, document certification and filings with Thai authorities. We advise before any file is opened, and we never guarantee an authority's decision.
Frequently asked questions
What makes a translation 'certified' in Thailand?
A certified translation carries a signed statement from the translator or agency confirming the translation is complete and accurate, with the translator's name, credentials and contact details, usually stamped and attached to a copy of the source document. Thailand has no single national sworn-translator register, so the receiving agency's own acceptance rules decide what counts.
Why do different agencies reject different translations?
Because each agency sets its own standard. The Ministry of Foreign Affairs checks the translation against its legalisation criteria, immigration cares about name consistency with the passport, the district office follows Thai civil-registration conventions, and the courts require a different declaration again. A translation that satisfies one can be refused by another purely on format.
Which agencies do you prepare translations for?
The Ministry of Foreign Affairs Legalisation Division, Immigration Bureau, district and amphoe offices, the Department of Business Development, the Ministry of Justice, Thai courts, embassies and consulates in Bangkok, universities and professional councils.
Does the translation need legalisation as well?
For most official uses, yes. The usual chain is certified translation, then MFA legalisation, then embassy legalisation where the destination country requires it. Skipping the middle step is the most common reason a bundle is bounced at the counter.
How are names and dates handled?
Personal names must match the passport spelling exactly, not a phonetic re-transliteration, and Thai Buddhist-era dates must be converted correctly to the Gregorian calendar. Those two details cause more rejections than any question of translation quality.
Can you translate a document that is already in English?
For Thai agencies, an English source normally still needs a certified Thai translation. For outbound use, a Thai document needs a certified translation into the destination language, and some embassies accept only their own approved translator list — we check that before starting.
How fast can it be done?
Standard civil documents are typically ready within one to two business days, with same-day handling available for urgent counter deadlines. Legalisation adds its own government processing time on top, and express legalisation is available for genuinely urgent cases.
What do you need from me to start?
A clear scan of every page including any stamps and reverse sides, the passport page showing the exact name spelling, and — most importantly — the name of the agency or country that will receive the document. That last detail determines the certification format.
Official sources
Related services
One team handles the full chain — translation, notarisation, MFA legalisation and embassy attestation — so your document is accepted the first time.
Certification & legalisation
Translation
Personal records & immigration
Not sure which route your document needs?
Send a photo or scan and our staff will confirm the exact steps, supporting documents and realistic turnaround under the receiving authority's current rules.
Send the document and the destination
Share a scan of every page and tell us which agency, embassy or country will receive it. We confirm the certification format, the legalisation steps required, and how quickly it can be ready.