Written & reviewed by Sunaree Ko, Founder · Sourced from GOV.UK
A Thai marriage certificate is one of the core relationship documents in a UK spouse / partner visa application — but because it is in Thai, UKVI will only read it through a certified English translation. This guide explains exactly what 'certified' means to UKVI, which Thai document (Kor Ror 2, 3 or 22) to use, what must be translated, and the single biggest money-saver: for a UK visa you do NOT need a consular stamp. For the full route and the rest of the evidence set, see our UK spouse visa guide. See our our UK spouse visa guide: the full evidence set
The 4 things to remember (2026)
Why UKVI requires a certified English translation
Any document that is not in English (or Welsh) must be submitted with a certified English translation. The reason is simple: the caseworker must be able to read every field on your marriage certificate independently — the names, the date and place, the registrar, the registration number — without relying on you to tell them what it says.
What happens if you skip it or get it wrong matters: a document submitted without an acceptable translation is simply disregarded — the caseworker sets it aside, usually with no warning and no request to fix it. A marriage certificate that is meant to prove your relationship then does no work at all. This is how the rule operates; it is not a comment on your case.
One rule underpins everything below: you always submit the original / source document AND the translation together — never the translation on its own.
What UKVI means by a 'certified translation' — the 4 elements
gov.uk's 'Certifying a document' guidance sets out what a certified translation must carry. The translator must confirm in writing that it is a 'true and accurate translation of the original document', and give the date of the translation, their full name, and their contact details. That is the whole standard — four elements:
| # | Element UKVI requires |
|---|---|
| 1 | A written statement that it is a 'true and accurate translation of the original document'. |
| 2 | The date of the translation. |
| 3 | The translator's full name (and signature). |
| 4 | The translator's contact details. |
Source: gov.uk 'Certifying a document' (certified-translation requirement). Last reviewed June 2026 — confirm the current wording on gov.uk.
Here is a model certification block — the artifact most pages never show. The translator (or agency) adds this to the foot of the translation:
"I confirm that this is a true and accurate translation of the original document. [Translator full name], [qualification / membership, e.g. MCIL CIOL], [date], [email / phone / address]." (+ signature)
Line by line: the first sentence is element 1; [date] is element 2; the name (with signature) is element 3; the email/phone/address is element 4. The qualification line is not required by gov.uk but is a useful quality signal.
In plain words: 'certified' here is the translator's own signed statement. It is NOT a court order, a notary's seal, or an embassy stamp. That distinction is the whole point of the next section.
Certified vs notarised vs apostille / consular legalisation — how much does UKVI need?
The hard answer first, because it saves you money and time: for a UKVI online spouse-visa application you need a certified translation only. You do NOT need notarisation, an apostille, or Thai MFA consular legalisation (รับรองกงสุล / กรมการกงสุล). gov.uk states explicitly that the translation does not need to be notarised.
Why do so many Thai agencies and consular pages push you toward รับรองกงสุล? Because legalisation IS required for some other purposes — registering a foreign marriage inside Thailand, or for certain non-UK destinations. For a UK visa it is simply wasted cost (commonly a few hundred baht plus a queue and turnaround time). Note too that Thailand is not in the Hague Apostille Convention, so there is no apostille route for Thai documents anyway.
| Step | What it is | Needed for UKVI spouse visa? |
|---|---|---|
| Certified translation (รับรองคำแปล) | The translator certifies it is accurate | Yes |
| Notarisation (โนตารี) | A lawyer / notary certifies the signature | No |
| Apostille | Cross-border authentication (Hague) | No (not available for Thai docs anyway) |
| MFA legalisation (รับรองกงสุล) | The Department of Consular Affairs stamps it | No |
The 'not notarised' point and the certified-translation standard are from gov.uk 'Certifying a document'. Consular legalisation (รับรองกงสุล) for a UK visa is generally unnecessary; it is required for other purposes. Information only. Last reviewed June 2026.
Kor Ror 2 vs Kor Ror 3 vs Kor Ror 22 — which Thai marriage document to use for the UK
Thai couples hold different documents depending on where and how they married. Knowing which is which avoids translating the wrong paper.
- Kor Ror 2 (คร.2 / ทะเบียนสมรส) — the marriage registration record held and issued by the amphoe (district office).
- Kor Ror 3 (คร.3 / ใบสำคัญการสมรส) — the marriage certificate, the formal document the couple receives. There are older and newer formats.
- Kor Ror 22 (คร.22) — family-status registration for couples married OUTSIDE Thailand (e.g. married in the UK, then registered in Thailand).
Guidance: submit the document(s) you actually hold. If you have both Kor Ror 2 and Kor Ror 3, the certificate (Kor Ror 3) is the natural primary, but translating both removes any doubt. Each one needs a certified translation if it is in Thai only.
| Document | What it is | Certified translation needed? | MFA / consular for UKVI? |
|---|---|---|---|
| Kor Ror 2 (ทะเบียนสมรส) | Marriage registration record | Yes, if in Thai | No |
| Kor Ror 3 (ใบสำคัญการสมรส) | Marriage certificate | Yes, if in Thai | No |
| Kor Ror 22 (married abroad) | Family-status registration | Yes, if in Thai | No |
| Amphoe English extract | Bilingual / English copy | See the triage below | No |
Document types per Thai civil-registration practice; the UKVI columns follow gov.uk's certified-translation rule (no consular legalisation needed for UKVI). Information only.
Not yet married? If you are travelling to marry, the fiancé(e) route uses a certificate of single status rather than a marriage certificate — and the children's documents (house registration, birth certificates) follow the family route.
Is the amphoe's English marriage certificate enough for UKVI? (the triage)
This is the question no competitor resolves clearly. Many district offices can issue an official English-language extract of the marriage record. Whether you can submit it as-is depends on what it actually is:
- If your district office issued a genuine bilingual / English-language extract of the marriage record, it may serve as the source document itself — but check it carries every field in English and an official issuing stamp. When in doubt, add a certified translation.
- If your document is Thai-only Kor Ror 2 / Kor Ror 3, you need a certified translation. Full stop.
- Do NOT treat the amphoe's Thai-language official stamp as if it were a 'certification' of an English translation — it is not. The stamp authenticates the Thai record; it says nothing about an English version.
Safe rule of thumb: a real, fully-English amphoe extract with an official stamp MAY suffice as the source document — check every field is in English first. A Thai-only document always needs a certified translation. This is general guidance, not a ruling on your specific document; verify against gov.uk's translation guidance.
The two-sided decision — 'request an official English version at the amphoe' vs 'pay for a certified translation' — is the same choice from two angles. Our companion guide walks through which Thai documents the amphoe issues in English and which you must translate.
What must be translated — the full-document rule (including stamps)
The full-document rule is strict: every field PLUS all stamps, seals, the registrar's mark, handwritten notes, and any marginal or amendment notes must be translated. A partial translation that skips the seal or an annotation can get the whole document disregarded.
A Thai marriage certificate typically contains: both parties' full names (in Thai and romanised), the date and place of marriage, the registrar or officiating authority, the registration number, the witnesses, and any amendments or annotations. The translation must reproduce all of these.
| Field on the certificate | Must appear in the translation |
|---|---|
| Both parties' full names (Thai + romanised) | Yes |
| Date & place of marriage | Yes |
| Registrar / officiating authority | Yes |
| Registration number | Yes |
| Official stamps & seals | Yes |
| Amendments / marginal notes | Yes |
Generic illustration so you can check nothing was left out. The translator must render every numbered field AND the seal text. Never submit a partial translation.
Who may translate — and who cannot
The hard 'no' up front: you cannot translate your own marriage certificate, and neither can your spouse or a family member. UKVI requires an independent professional translator so the translation is independently verifiable and free of any conflict of interest. Machine translation, including Google Translate, is not accepted.
As a quality signal, use a translator or agency registered with a recognised professional body such as the CIOL or ITI in the UK, or an equivalent qualified professional in Thailand; the certification block should carry their credentials. The rule exists for one reason — independent verifiability, not bureaucracy.
Common mistakes that get your translation silently ignored
Each of these is a real Thai-document failure mode. Treat the list as 'what the rule requires', not a verdict on your case:
- Missing the translator's contact details — the most common of the four-element misses.
- A partial translation that skips the registrar's seal or an amendment note.
- Thai name romanisation that does not match the passport (RTGS vs passport spelling) — see the next section.
- Treating the amphoe's Thai stamp as if it were the certification.
- Submitting the translation without the original Thai document.
- Paying for รับรองกงสุล thinking UKVI required it — wasted money, not a rejection, but worth avoiding.
A missing or partial translation is also a common thread in refusals where relationship evidence was set aside. If an incomplete translation contributed to a refusal, that is a matter for regulated advice — see our information page on re-preparing after a refusal.
Name transliteration consistency (Thai → English) across every document
The romanised name on your marriage-certificate translation must match your passport spelling exactly, and stay consistent across your bank statements, financial evidence and the application form. RTGS-vs-passport-vs-bank mismatches are a quiet caseworker red flag.
If your passport uses a non-standard spelling, the translator should follow the passport, with a translator's note explaining the variant. Consistency beats 'correctness' here — the goal is that a caseworker can see it is plainly the same person on every document.
Spell-check across all four: passport ↔ marriage certificate translation ↔ bank statements ↔ application form. Same spelling everywhere.
Decision flow by where you married
| Where you married | Document you hold | What to do |
|---|---|---|
| In Thailand | Kor Ror 2 / Kor Ror 3 | Certified translation → submit original + translation |
| In the UK, registered in Thailand | UK certificate (English) + Kor Ror 22 | Translate the Thai parts (Kor Ror 22); UK cert stands as-is |
| In a third country | That country's certificate | Its own certified English translation (if not in English) |
Price & turnaround (£ / ฿)
Honest ranges: a Thailand-side certified translation is typically a few hundred baht per A4 page — about ฿700–1,000 per page (roughly £15–22) at market rates; our own service is ฿500 per page. UK-side providers usually charge around £30–40 per certificate. Standard turnaround is about 1–2 working days. Remember you save the รับรองกงสุล cost (around ฿2,400 per document) because UKVI does not need it.
Get an instant estimate for your document set below — it counts pages at ฿500 per page. The figure is indicative; the checkout price applies.
Where the translated certificate fits the wider spouse-visa evidence set
Your translated marriage certificate is one relationship-evidence item among many. Alongside it sit the £29,000 financial requirement, the English-language test, the TB certificate, cohabitation evidence and the NHS health fee (IHS at £1,035 a year). It helps to see the certificate inside the full list — use the checklist builder below.
On the 2026 landscape: the income rule is £29,000 a year (the proposed rise to £38,700 is PAUSED — the MAC reported on 10 June 2025 advising against it, and £29,000 still applies). Successful applicants now receive an eVisa, not a passport vignette sticker (vignettes ended for visitor applicants from 25 Feb 2026), and fees rose on 8 April 2026. The £29,000 rule is explained in full on its own guide. gov.uk is the official source for every figure.
Want the full baht breakdown? The cost calculator adds the spouse fee, the IHS and a translation line, in pounds and indicative baht.
Presenting the original and translation at VFS
After you apply and pay online, you attend a VFS Global centre in Bangkok, Chiang Mai or Phuket to give biometrics and, where required, hand over or upload documents. Bring the original Thai certificate and its certified translation together, packaged so each pair is obvious. Our VFS guide walks through the appointment step by step.
Our certified-translation service
We provide independent professional certified translation of Kor Ror 2 / Kor Ror 3 / Kor Ror 22 to UKVI's 4-element standard: a true-and-accurate statement, the date, the translator's name and signature, and contact details. We translate the whole document including stamps and seals, match your romanisation to your passport, and package the original with the translation — with no unnecessary consular stamp. From ฿500 per page. This is document-preparation and translation support; we are not solicitors or IAA-registered advisers and we do not assess your eligibility.
Related guides
Frequently asked questions
Do I need a consular (กงสุล) stamp on my marriage certificate for a UK spouse visa?
Can I translate my own marriage certificate?
What is the difference between Kor Ror 2 and Kor Ror 3, and which do I use?
Can I use the English marriage certificate from the amphoe directly?
Does the translation need to be notarised?
What must a certified translation include to pass UKVI?
Do I submit the original Thai document too, or just the translation?
Can I use Google Translate?
Must the English name on the translation match my passport?
We married in the UK — what do we translate?
Last reviewed: June 2026. This page is general information based on public gov.uk sources, not regulated immigration advice and not an eligibility assessment. The certified-translation rule (true and accurate, date, translator's name, contact details; not notarised) is from gov.uk 'Certifying a document'; the £29,000 income figure and IHS £1,035/year are from gov.uk. For a refusal, an appeal or whether an exception applies to your case, speak to an IAA-registered adviser or a solicitor. Rules, fees and exchange rates change — always confirm the current position on gov.uk before you rely on it.