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Legal Name Change in Thailand
Amphur name change + full downstream update: passport, Immigration, work permit, bank, DLT.
Quick Answer
Foreigners with residence documentation may change their registered name at any Amphur under the Person Name Act B.E. 2505. We handle Amphur filing plus the downstream chain: passport, visa stamp, work permit, bank, DLT. From THB 4,500.
Grounds & scenarios
- ✓ Adopt spouse's family name (post-marriage)
- ✓ Revert to maiden name (post-divorce)
- ✓ Hyphenated surname
- ✓ Personal / religious / gender-affirming change
- ✓ Correction of transliteration error
- ✓ Change of given name (once/lifetime)
- ✓ Adoption of Thai family name (naturalized)
- ✓ Child surname update after legitimation
- ✓ Passport & Immigration re-endorsement
- ✓ Work Permit + BOI re-issuance
FAQ
- Can foreigners change their Thai-registered name?
- Yes. Foreigners holding a Certificate of Residence, Yellow Book (Tor.Ror.13), work permit, or PR can change registered given / family name at any Amphur office under the Person Name Act B.E. 2505 (as amended).
- What about post-marriage / post-divorce name change?
- Amphur can register: (a) adopting spouse's family name after marriage, (b) reverting after divorce, (c) hyphenated surname. Foreign spouses need MFA-legalized + translated marriage/divorce certificate from home country.
- Do I need to update visa, work permit, and passport?
- Yes — after Amphur name-change: update passport at home embassy, then Immigration (visa stamp), then Department of Employment (work permit), then bank/DLT/DBD. We handle the full downstream update chain.
- Cost?
- Amphur name change only: THB 4,500. Full chain (Amphur + embassy passport + Immigration + WP + bank + DLT): THB 18,500. Post-marriage / post-divorce combo: THB 8,500.
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Official sources
The information on this page follows the official sources below. Always check the latest version before you file.
- กรมการกงสุล — บริการรับรองเอกสาร (นิติกรณ์)— กระทรวงการต่างประเทศ
- สำนักงานตรวจคนเข้าเมือง — วีซ่า รายงานตัว 90 วัน TM.30— Immigration Bureau
- กรมการปกครอง — ทะเบียนราษฎร ทะเบียนครอบครัว— Department of Provincial Administration
- สภาทนายความในพระบรมราชูปถัมภ์ — ทนายความผู้ทำคำรับรองลายมือชื่อและเอกสาร— Lawyers Council of Thailand
- สำนักงานคณะกรรมการกฤษฎีกา — ฐานข้อมูลกฎหมายไทย— Office of the Council of State
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Thai name change law and the records it touches
Changes of forename and surname in Thailand are governed by the Name of Person Act B.E. 2505 and administered by district offices. The mechanics are straightforward: an application, an approval, and a certificate — ช.3 for a forename change and ช.5 for a surname change. What is not straightforward is the downstream reconciliation, because a Thai identity is recorded across the national ID card, the house registration, the passport, bank accounts, land titles, professional licences and, for anyone with an overseas life, foreign visas and academic records.
The rule we apply is that the name change is finished when the last record matches, not when the certificate is issued. A client who changes a surname and leaves a land title in the previous name will meet the problem years later at the moment of sale, when the Land Department requires evidence linking the two names — evidence that is far harder to assemble after time has passed.
Marriage, divorce and surname choice
- Thai law permits spouses to use the other's surname, to retain their own, or in defined circumstances to combine, and the choice is recorded at registration.
- After divorce, a spouse who took the other's surname may revert; the reversion is a registration act with its own certificate.
- A foreign spouse's surname is transliterated into Thai script for Thai records, and the transliteration chosen at the first record governs every later one — inconsistent transliteration is a recurring source of mismatch.
- Children's surnames follow separate rules connected to legitimation and parental power under the CCC, not automatically the parents' choice at marriage.
- Any surname change interacts with the passport renewal cycle, so sequencing the district office and the passport office saves a duplicated trip.
Making the change readable abroad
| Foreign record | What it needs | Why the certificate alone fails |
|---|---|---|
| Foreign visa or residence permit | Certified translation of ช.3/ช.5 plus MFA and embassy legalisation | Immigration authorities require an authenticated link between the two names |
| Overseas university record | Translation plus institutional letter | Registrars match on the name at enrolment, not the current name |
| Foreign bank account | Legalised translation and often a notarised identity affidavit | AML rules require documented continuity of identity |
| Foreign marriage or birth registry | Legalised translation filed with the registry | Registries do not accept a Thai-language certificate directly |
| Professional licence abroad | Translation plus the issuing body's own change form | The body needs both the legal evidence and its own record update |
The order we work in
- Map every record first: ID card, house registration, passport, bank, land, licences, foreign visas and academic records listed before the application is filed.
- File at the district office: Application with supporting identity documents; approval and issuance of ช.3 or ช.5.
- Update the ID card and house registration: These are the primary Thai identity records and every other Thai institution verifies against them.
- Renew the passport: The new passport carries the new name; the old passport becomes the evidential link for foreign records.
- Certified translation and legalisation: Translation of the certificates, MFA certification, and embassy legalisation where the destination requires it. Until 28 February 2027 the consular chain applies rather than an apostille.
- Sweep the remaining records: Land titles, company registrations, professional licences and foreign institutions, working from the map made at step one.
Common mistakes and how we avoid them
More questions we are asked
- How long does the district office step take?
- The district office step is usually short. The downstream reconciliation of Thai and foreign records is what determines the overall timeline.
- Can a foreigner change their name in Thailand?
- Thai name registration applies to Thai civil records. A foreigner changes their legal name under their own national law, and we handle the recognition of that change in Thai records.
- Does a name change affect my visa?
- It does not cancel permission to stay, but Immigration records and the passport must be reconciled, so notify at the next reporting or extension step with the certificates in hand.
- Will a name change erase a criminal record check history?
- No. Police clearance checks are based on identity, not the current name, and prior names are part of the record.
Frequently asked questions
- How does a foreigner register a marriage in Thailand?
- The foreign partner first obtains an affidavit of freedom to marry from their embassy in Thailand, has it translated into Thai and legalized by the Department of Consular Affairs, and then both parties register the marriage at any district office (amphoe) with passports and two witnesses. Since the Marriage Equality Act took effect on 23 January 2025, same-sex couples register on exactly the same basis.
- Do we need an interpreter at the district office?
- Yes in practice — most district offices require that a foreign party who does not read Thai be assisted by an interpreter, and many request that the interpreter present identification and sign the register. Some offices also expect a prenuptial agreement, if any, to be presented before registration, because a prenuptial agreement in Thailand is only valid when registered together with the marriage.
- Is a Thai marriage recognized in my home country?
- A marriage registered at a Thai district office is generally valid worldwide, but recognition procedures differ: many countries want the Thai marriage certificate and the Kor Ror 2 extract translated, legalized by the MFA and certified by their embassy before it is entered in their civil register. Some countries additionally require registration with their consulate within a set period.
- How is a prenuptial agreement made enforceable in Thailand?
- Under the Civil and Commercial Code a prenuptial agreement must be in writing, signed by both spouses and two witnesses, and registered with the marriage at the district office on the day of registration — an agreement signed afterwards is void as to property arrangements. It also cannot contradict public order or the rules on parental duties, so the drafting must be Thailand-specific rather than a translated foreign template.