Certified translation Thai–English
Translation by translators experienced with Thai official documents, issued with a company certificate of accuracy for MFA or end-agency filing.
- Service fee
- Contact us for a quote
- Typical turnaround
- 1–3 working days
per page· Certification fees not included
What you receive
- Format-matched translation
- Certificate of translation accuracy
- PDF plus printed set
Documents to prepare
- Colour scan of every page
- Name spelling exactly as in the passport
Official source: กรมการกงสุล กระทรวงการต่างประเทศ (Consular Affairs, MFA Thailand) · Last reviewed:
MFA Consular Affairs legalisation fees are THB 200 per stamp (standard) and THB 400 per stamp (express). These are government fees, separate from our service fee.
Full service playbook — Certified Translation
Translations used by government bodies or foreign authorities must carry a Certificate of Accuracy naming the translator, dated and signed, confirming the translation is complete and faithful to the source.
Responsible authority: Certifying translator / Department of Consular Affairs, MFA Thailand where legalisation is required
Documents to prepare
- The original or a clear copy of every page, seals included
- Passport bio page to fix the Latin spelling of names
- A list of proper nouns (company, title, address) to be spelled consistently
- Any destination-mandated form or glossary
- Previously translated files so terminology stays aligned
Step-by-step process
- 1. Assess the file and confirm the language pairsame day
Count pages, check seal legibility and confirm the pair, e.g. Thai–English.
- 2. Translate with a subject-matter translator1–3 business days
Use a translator experienced in the document type — civil registry, academic, legal or medical — and keep terminology consistent.
- 3. Second-pass review against the source1 business day
A second linguist reconciles numbers, dates, proper nouns and reference numbers line by line.
- 4. Issue the Certificate of Accuracysame day
Attach the signed certificate with translator contact details in the format the destination expects.
- 5. Escalate to MFA or embassy if required3–10 business days
For overseas use, submit the translation for consular legalisation and any embassy stamp.
Practitioner tips
- Share the English spellings used in your previous documents so the whole set matches.
- Send high-resolution colour scans; unreadable seals force an 'illegible' note that some authorities reject.
- Assemble the full set before filing once; batching is faster than submitting one document at a time.
- Check the destination's freshness rule first; many accept documents issued within the last 3–6 months only.
- Confirm whether the destination wants an original or a certified copy — the two follow different routes.
Cautions
- Machine output without a certifying translator cannot be submitted for legalisation.
- If the source document is amended, the translation must be redone and re-certified in full.
- Multi-page documents must be certified on every page where the rules require it, not only page one.
- Never unstaple or re-bind a certified bundle — breaking the seal usually voids it and restarts the process.
- Do not write on, amend, or correction-fluid an official document; request a fresh copy from the issuing office instead.
DIY vs NYC handling it
| Task | Do it yourself | NYC handles it |
|---|---|---|
| Checking destination rules | You read checklists and call around yourself | We verify the current requirements and hand you one list |
| Multi-agency running | Several days off work, different queues and hours | We run the whole chain end to end for you |
| Translation and certification | You source a translator and risk rejection | Translated, double-checked and certified in one package |
| Errors and re-filing | One mistake restarts the whole chain | Pre-submission checks at every stage reduce rejections |
| Tracking | You chase the status by phone | Stage-by-stage updates on LINE with photo evidence |
Prefer not to run it yourself? NYC can handle the whole chain
Every step above can be done alone, but it means several agencies, mismatched queues, and one mistake restarting the sequence. Our attorneys and translators cover requirement checks, document re-issue, certified translation and MFA or embassy legalisation, with status updates at each stage. Send photos of your documents for a free assessment first.
What the common mistakes actually cost
Almost every failure in certified document translation happens during preparation, not at the counter, and the real cost is the TIME needed to repeat the chain. Below is what each mistake comes from, how long it typically adds, and how to avoid it.
| Mistake | Why it happens | Time cost | How to prevent it |
|---|---|---|---|
| The name in the translation does not match the passport spelling | Receiving authorities compare character by character; a single different letter reads as a different person. | Typically adds 3–10 working days, because the translation has to be redone and the whole chain repeated. | Send the passport page on day one and have the translator take the spelling from the passport, never from the Thai document. |
| Booking the wrong service channel or appointment type | Each channel has its own queue and document conditions; the wrong one means booking again. | Typically adds 2–14 working days depending on appointment availability that month. | Confirm the service type and the appointment date in advance and keep at least one spare week. |
| Running the chain in the wrong order — embassy before the consular department | Each body only certifies the signature of the body immediately before it in the chain. | Typically adds 5–12 working days and forces a re-filing from the skipped stage. | Confirm the route with the receiving authority before starting, or have us map the chain up front. |
| Removing staples or separating pages after certification | The certification is attached to the bound set; once separated the set counts as incomplete. | Typically adds 3–7 working days to re-certify the set. | Scan first, then keep the originals in a rigid envelope without detaching anything. |
| Planning without allowing for public and embassy holidays | Embassies close on both Thai and home-country holidays, so the real calendar is shorter than it looks. | Typically adds 3–9 working days around a long holiday period. | Check the holiday calendar of every body involved before fixing a travel or filing date. |
Deep timeline: what can run in parallel
The windows below are approximate and depend on each authority's queue. Stages marked as parallel can start alongside the previous stage — that is where the total calendar time is actually reduced.
- 1. Source assessment and translation formatwithin 1 working day
We count pages, check seal legibility, and confirm which translation format the destination accepts.
- 2. Translation with a second-pass review1–3 working days
A reviewer checks names, dates, figures, and terminology against the source line by line.
- 3. Name-spelling confirmation with yousame daycan run in parallel
You approve the draft spelling against your passport before the final is issued — the single biggest source of rework.
- 4. Certification and delivery1–2 working days
The certificate is attached and bound to the original or the copy, as the destination requires.
Note: all windows are general estimates, not guarantees. Actual timing depends on how complete your file is and on the queues at the authorities involved.
Compare the options before you decide
Apostille route vs embassy legalisation route
The destination country decides whether a file ends at an Apostille or still needs the embassy. Confirm the country's convention status first: the two routes use a different order and different paperwork.
| Aspect | Apostille route | Embassy legalisation route |
|---|---|---|
| When it applies | Destination is a party to the Apostille Convention | Destination does not accept an Apostille |
| Final authority | Department of Consular Affairs, Ministry of Foreign Affairs | The destination country's embassy or consulate in Thailand |
| Typical number of steps | Fewer — the chain ends at the central authority | More — central authority first, then the embassy |
| Approximate timeframe | Shorter, still subject to the authority's queue | Longer, because the embassy appointment queue is added |
| Common rejection cause | Translation does not match the original, or the copy was not issued by the authority | The embassy's own form or language requirement was not followed |
Verify the current convention status and embassy conditions before filing.
MFA-certified translation vs NAATI vs a destination-country sworn translator
"Certified translation" does not mean the same thing everywhere. The receiving body defines the accepted form, and choosing the wrong one means translating the whole set again.
| Aspect | Translation + Thai MFA certification | NAATI / foreign sworn translator |
|---|---|---|
| Who certifies | The Department of Consular Affairs certifies the translation and the translator's signature | A translator registered with the destination country's body |
| Accepted by | Thai authorities and destinations that accept Thai certification | Bodies that explicitly require a registered translator, such as Australian immigration |
| Output format | A certification stamp on the translation attached to the original | The translator's statement with their registration number or stamp |
| Can an Apostille follow? | Yes, when the destination is a convention party | Depends on that country's rules; some require no further step |
| Check before you start | Whether the destination accepts Thai consular certification | Whether the receiving body requires its own registered translator |
Where the destination requires a court-registered sworn translator, Thai certification cannot substitute for it.
Filing it yourself vs letting NYC run the chain
Every step can be done alone. This table compares the real workload of each option so the decision rests on time and rejection risk rather than marketing claims.
| Aspect | Do it yourself | NYC handles it |
|---|---|---|
| Checking destination rules | Read each authority's notice yourself and confirm by phone | Checked before you start, with the order the receiving authority accepts |
| Travel | Several agencies with queues that rarely line up in one day | Documents move by courier or online except where the law requires you in person |
| Rejection risk | One mismatch — a name spelled differently from the passport — restarts the chain | Names, dates and stamps are cross-checked before every filing |
| Status tracking | You follow up with each authority | Status updates at each stage, and we handle the fix if a file is returned |
| Advisory role | No one to compare options when your case falls outside the manual | You get advice on the options before work starts, not just execution |
Government fees and timeframes change; ask for an assessment of your own case before you start.
We work as advisers, not only as a document-running agency
Our team has worked on documents, translation and legalisation for more than 15 years, combining notarial attorneys licensed by the Lawyers Council of Thailand with translators the receiving authorities accept. Every case starts with advice on the correct route and only then moves to execution — we do not simply run whatever is handed to us.
Before we start — mapping the document route
We confirm whether your file ends at an Apostille or still needs the embassy, whether a freshly issued copy is required, and which form of translation the receiving authority accepts. This is where most time is saved, because it is where most people choose wrongly and restart.
While preparing — consistency checks
We match the spelling of your name against the passport, check the issue date against the validity window the destination applies, verify stamps and signatures, and confirm the translation matches the original line by line.
While filing — coordination with the authorities
We file in the order each authority expects, follow the queue, and report status as it moves. If an authority asks for more paperwork, you hear about it immediately, together with the options for fixing it.
After delivery — practical guidance
We explain which bodies this set can be filed with, how to store the originals, and how many certified sets to request up front if you expect to use them again, so you do not repeat the whole chain later.
Cases where advice up front changes the outcome
- Documents have a limited validity window and every item must still be valid on the day of filing.
- The applicant is upcountry or abroad, so the power of attorney and courier plan must be arranged carefully.
- The name on an older document does not match the current passport because of a name change or a different transliteration.
- A file was already returned once and the real cause has to be identified before refiling.
If you are unsure which route your case takes, send photos of the documents and name the destination country or authority. We map the sequence and the paperwork first; you then decide whether to run it yourself or hand it over.
General information for document planning only — not legal advice for an individual matter. Government fees and processing times may change; verify with the relevant authority before filing. We do not guarantee any authority's decision.
