Name-change records, certified translation and same-person evidence
When the name on your birth certificate, house registration, passport and diplomas do not match, receiving authorities usually reject the whole bundle. The fix is to gather the official name-change certificates, translate them under one certification, and add a same-person affidavit. A full set normally takes three to seven working days before any legalisation.
Who this is for: Visa applicants, spouses after marriage or divorce, students, professionals seeking registration, and Thai nationals abroad.
Key facts
| Core records | Name-change certificates (Chor 3 / Chor 5), marriage or divorce certificate, house registration |
|---|---|
| Standard turnaround | 3–7 working days for translation and the affidavit |
| Outcome | A bundle that traces the name from birth to the present |
| Add-ons | Consular Affairs and destination embassy legalisation |
Documents to prepare
- Given-name change certificate (Chor 3) and/or surname change certificate (Chor 5)
- Marriage or divorce certificate where the surname changed
- Birth certificate and current house registration
- Current and previous passports
- Documents still bearing the former name, such as diplomas or a driving licence
- The destination's stated requirements on name evidence
How the work actually runs
- 1. Map the name history
Set out when each change occurred, which certificate proves it, and which documents still carry the old name.
Handled by: Adviser · Time: Same day
- 2. Fill the gaps
Request fresh certified extracts from the district office where originals are lost or illegible.
Handled by: Client and filing team · Time: 1–5 working days
- 3. Certified translation of the set
Every document is translated using one English spelling standard taken from the current passport.
Handled by: Certified translation team · Time: 2–4 working days
- 4. Same-person affidavit
Drafted to reference each document in order and notarised by an attorney.
Handled by: Legal team and attorney · Time: 1–2 working days
- 5. Legalisation
File with Consular Affairs and the destination embassy as required.
Handled by: Filing team · Time: 2–5 working days per authority
- 6. Deliver with an index
The bundle ships with a contents page so the reviewing officer can follow the sequence immediately.
Handled by: Operations team · Time: 1–3 working days
Why cases get rejected
- Different English spellings across documents in the same bundle
- No original or certified extract of the name-change certificate
- Claiming a post-marriage surname change without attaching the marriage certificate
- Filing only current documents without showing the full name history
- Reusing older translations that predate a re-issued passport spelling
Compare your options
| Option | Use when | Time | Note |
|---|---|---|---|
| Translate the name-change certificate only | The destination asks for a single proof | 2–3 working days | Suitable where the name changed once |
| Full set plus same-person affidavit | Multiple changes or conflicting documents | 3–7 working days | Lowest rejection risk |
| Full set plus consular and embassy legalisation | Filing with a foreign authority | 7–15 working days | Timing depends on each embassy's queue |
Frequently asked questions
Why is a same-person affidavit needed?
A foreign officer cannot know that differently spelled documents belong to one person. A notarised affidavit links the bundle together.
How do post-marriage surname changes work?
The marriage certificate is the primary evidence; attach a current house registration if the civil registry was updated.
Should diplomas be reissued in the new name?
Institutions rarely amend historical records, so the accepted approach is to attach the name-change evidence and affidavit.
Which English spelling governs?
The current passport. Every translation in the set is aligned to it.
Can this be done from abroad?
Yes, by power of attorney in Thailand or through the Thai embassy where you reside.
What if the certificate is lost?
Request a certified extract from the issuing district office; we can coordinate and file on your behalf.
How long overall?
3–7 working days with complete documents, or roughly two to three weeks if extracts and overseas legalisation are needed.
Can you run the whole thing?
Yes, from mapping the name history to extracts, translation, affidavit and legalisation.
Name mismatches are one of the most frequent rejection causes we have seen over 15 years. Our advisers map the name history first, then decide whether the fix is an official record or an affidavit, so the bundle passes on the first submission.
Send your documents on LINE for a reviewRather not handle the paperwork? Our advisory team, 15+ years in the field, runs the whole chain for you.
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Official sources
Talk to our advisory team before you start
Our team has over 15 years of experience in translation, certification, and filings with Thai and overseas authorities. We advise on choosing the correct certification route, sequencing your documents, and repairing files that were previously refused.
- A case review before work begins, so you only prepare the documents that are genuinely required
- The correct order of steps from day one, reducing the risk of a refusal and a restart
- A plain explanation of the destination authority's stated requirements as published at the time of advice
- If you would rather not handle it yourself, we run the full process end to end and return the finished file
Final acceptance rests with the receiving authority. Our guidance follows the latest verifiable published practice.