ข้ามไปยังเนื้อหาหลัก
Thai Notary Law logo
Thai Notary Law

Family Office Notarization · Foundation · Holding Co · BOI IBC · PPLI · LTR Visa · Inheritance Tax · HCCH Apostille (มีผล 28 ก.พ. 2570)

Family Office & Wealth Structure Notarization for Foreigners — Foundation · Holding Co · IBC · PPLI · LTR Visa (Trust Act 2550 + CCC §§ 110–136)

Notarisation of **family-office structures** for HNWI / UHNWI / foreign settlors with Thai-situs assets, using only the vehicles that Thai law actually recognises: **Thai foundations (มูลนิธิ)** (CCC §§ 110–136), **Thai holding companies + family constitution**, **private REIT / infrastructure-trust feeders** (Trust Act 2550), **PPLI insurance wrappers** (OIC Notification 8/2562), **BOI International Business Centre**, **LTR Visa (Wealthy Global Citizen)**, **concurrent wills**, **pre/postnuptials**, **successor-trustee POAs**, and a **notarised family charter**. Notarial attorneys + tax counsel + BOI specialist + OIC liaison + estate planner + AMLA/CRS compliance officer, with **MFA Apostille (HCCH, entering into force on 28 February 2027)** returned in 5–10 business days. **Fixed-fee, no % AUM, no contingency.**

Notarial Services Attorney
ขึ้นทะเบียนกับสภาทนายความในพระบรมราชูปถัมภ์
16,168+
ลูกค้าที่ไว้ใจ
6
ทนาย Notary
4
สาขาทั่วประเทศ
50+77
เขต กทม. / จังหวัด
60+
สัญชาติลูกค้า
≤ 3 นาที
ตอบ LINE

**Why a Thai family office must stack vehicles.** Because Thailand has no general trust law, the only way to replicate what a trust does in common-law jurisdictions is to combine a foundation, a holding company, PPLI, a BOI IBC, a Trust Act 2550 feeder, and an insurance wrapper. The core documents — the foundation charter, the shareholders' agreement, and the family constitution — must be notarised and apostilled for cross-border recognition. Capgemini's 2024 wealth report estimates ~3,400 UHNW households (NAV > USD 30M) currently resident in Thailand.

**Thai foundation (มูลนิธิ) — CCC §§ 110–136.** A separate legal person, registered with the Department of Provincial Administration, must have a public-benefit purpose (no pure family trust), minimum endowment THB 500,000 (typically THB 5–50M), a board of at least three, and annual filings with the Revenue Department. If recognised as a public charitable organisation under Revenue Code § 47(7)(ข) the foundation is CIT-exempt and donors get a deduction. A sham foundation is dissolved and directors face criminal liability.

**Thai holding company + family constitution.** Most SFOs sit inside a Thai limited company; foreign settlors hold through a BOI-promoted entity or a treaty-based vehicle (US citizens may hold 100% under the US-Thai Treaty of Amity 1968). The family constitution sets governance, succession, investment mandate, and dispute resolution — it is **not** a standalone Thai legal document, but notarising it gives it evidentiary weight and feeds binding force through the shareholders' agreement (CCC § 1129).

**BOI International Business Centre (IBC) — Announcement S.1/2561.** A Thai entity providing management, treasury, or tech support to a group with at least one offshore subsidiary. Benefits include CIT at 8 / 5 / 3% (tied to local spending), 0% WHT on dividends out, a flat 15% PIT for foreign experts, intra-group USD lending, and the ability to consolidate treasury, IP, and investment management in one vehicle. Service revenue from inside Thailand must stay below 50%.

**PPLI (private placement life insurance) — OIC Notification 8/2562.** A life-insurance policy whose premium funds a dedicated investment account (equity / bond / hedge / PE) for the insured. Only OIC-licensed insurers with PPLI approval (Allianz Ayudhya, AIA Thailand, FWD, Muang Thai Life) can issue it. Investment growth is tax-deferred inside the policy; **death benefits are exempt from inheritance tax** under § 14; switching the underlying fund is not a taxable event. Minimum premium ~THB 25M — built for UHNW.

**LTR Visa (Wealthy Global Citizen) — Royal Decree B.E. 2565.** A 10-year visa for foreigners with NAV > USD 1M, annual income > USD 80K, and Thai investment > USD 500K (bond / property / BOI entity). The key benefit is **exemption from Thai PIT on foreign-source income**, plus a multiple-entry visa, an embedded work permit, and annual (not 90-day) reporting. Pensioner / Work-From-Thailand Professional / High-Skilled Professional variants run in parallel. LTR + IBC + foundation is the best-in-class stack.

**Cross-border will, pre / postnuptial, and successor-trustee POA** wrap the stack for succession: a concurrent will for Thai-situs and foreign-situs assets (see N14), a prenuptial or postnuptial separating sin suan tua from sin somros (see L27), and a springing POA + successor-trustee charter for incapacity. Every piece must be notarised and apostilled for cross-border enforcement.

Notary attorneys

Notarisation of **family-office structures** for HNWI / UHNWI / foreign settlors with Thai-situs assets, using

6Notary attorneys

Provinces

Provinces · 50+77

77Provinces

Clients served

16,168+ clients · 60+ nationalities

16,168+Clients served

Turnaround

Send the family constitution, shareholders' agreement, or foundation charter via LINE — notarial attorney + ta

≤24hTurnaround

What you need to know

Family-office stack components we notarise

  • 🏛️ Thai foundation charter (CCC §§ 110–136)
  • 📜 Foundation board resolution and annual report
  • 🏢 Thai holding company — articles and shareholders' agreement
  • 👨‍👩‍👧 Family constitution / family charter
  • 🌍 BOI International Business Centre application and licence
  • 💎 LTR Visa application — Wealthy Global Citizen / Pensioner / WFTP / HSP
  • 🛡️ PPLI insurance wrapper (OIC Notification 8/2562)
  • 📈 Investment mandate / IPS
  • 🔄 Trust Act 2550 feeder (REIT / infrastructure trust — see N15)
  • 📑 Concurrent will (Thai-situs + foreign-situs — see N14)
  • 💍 Prenuptial / postnuptial (see L27)
  • 🛂 Successor-trustee power of attorney
  • 🔑 Springing POA for incapacity
  • 🤝 Foundation donor agreement
  • 📊 UBO declaration, CRS self-certification, FATCA W-8 / W-9
  • 🏦 Custodian bank-account opening resolution
  • 🌐 Apostille / embassy-legalisation chain
  • 📋 Annual compliance calendar (DPA + Revenue + OIC + BOI + AMLO)

Thai foundation compliance checklist

  • ✅ Public-benefit purpose (no pure family trust)
  • ✅ Initial endowment ≥ THB 500,000 (typical THB 5–50M)
  • ✅ Board of at least three (manager + two directors)
  • ✅ Registered with the Department of Provincial Administration
  • ✅ Annual filings to DPA and Revenue Department
  • ✅ Apply for public-charitable-organisation status under § 47(7)(ข)
  • ✅ Donor deduction (individuals 10% / corporates 2%)
  • ✅ CIT exemption (if public charitable)
  • ✅ Asset lock-up — funds cannot revert to the settlor
  • ❌ No sham foundation — dissolution plus criminal liability

BOI International Business Centre — benefits

  • ✅ CIT at 8 / 5 / 3% based on local spending
  • ✅ 0% WHT on dividends out
  • ✅ 15% flat PIT for foreign experts
  • ✅ Treasury centre — intra-group USD lending
  • ✅ IP holding and royalty routing
  • ✅ R&D / tech-support function
  • ⚠️ Service income from Thailand ≤ 50%
  • ⚠️ Minimum local spending THB 60M / year
  • ⚠️ Substance required (BEPS Action 5)

LTR Visa Wealthy Global Citizen — eligibility

  • 💰 NAV > USD 1,000,000
  • 💵 Annual income > USD 80,000 (≥ 2 years)
  • 🏠 Thai investment > USD 500,000 (bond / property / BOI entity)
  • 🛂 10-year multiple-entry visa
  • 📉 Foreign-source income exempt from Thai PIT
  • 👔 Embedded digital work permit
  • 📅 Annual (not 90-day) reporting
  • 👨‍👩‍👧 Dependent visas for spouse and children under 20

PPLI compliance checklist

  • ✅ Insurer holds OIC licence + PPLI approval (Notification 8/2562)
  • ✅ Premium ≥ THB 25M (single or annual)
  • ✅ Investor direction — equity / bond / hedge / PE
  • ✅ Dedicated account segregated from the general account
  • ✅ Tax-deferred growth inside the policy
  • ✅ Death benefit exempt from inheritance tax (§ 14)
  • ⚠️ Surrender — PIT at marginal rate
  • ⚠️ CRS / FATCA reportable if cross-border insurer
  • ❌ No unlicensed insurer — re-characterised as an investment contract (Securities Act breach)

Inheritance Tax (Act B.E. 2558) — family-office planning

  • 📊 Threshold THB 100M per heir per lifetime
  • 📉 Rate 5% (direct descendants / parents) or 10% (other heirs)
  • ✅ Spouse 100% exempt
  • ✅ Public charitable foundation 100% exempt
  • ✅ PPLI death benefit exempt (§ 14)
  • ✅ Pre-mortem gifts ≥ 5 years before death reduce the tax base
  • ⚠️ Thai-situs assets — taxable for every heir worldwide
  • ⚠️ Foreign-situs assets — taxable only for Thai-resident heirs

Cross-border compliance chain

  • 1️⃣ Foreign settlor signs the family charter and foundation charter
  • 2️⃣ Home-country apostille (HCCH (in force for Thailand 28 February 2027))
  • 3️⃣ Direct Thai recognition (MFA — no embassy step)
  • 4️⃣ Certified translation by a sworn translator
  • 5️⃣ Double-notary in Thailand
  • 6️⃣ Register the foundation, holding company, and BOI IBC
  • 7️⃣ FATCA W-8BEN / W-9 + CRS self-certification
  • 8️⃣ AMLO CDD + UBO disclosure
  • 9️⃣ Annual compliance calendar set up

Risk shields — what we will not notarise

  • ❌ Sham foundations (tax-avoidance shell / pure family trust)
  • ❌ Nominee shareholding to bypass Land Code § 86 or FBA
  • ❌ Claims that a Cook Islands / Nevis APT has effect in Thailand
  • ❌ PPLI through an insurer without OIC licence
  • ❌ Backdated family constitution / SHA (Penal Code §§ 137 + 264)
  • ❌ IBC without genuine substance (BEPS Action 5)
  • ❌ LTR Visa used to hide beneficial ownership and dodge CRS
  • ❌ Family charters that override compulsory-share rules (CCC § 1610)
  • ❌ % AUM or contingency fees on family assets (Ethics § 11)

Risk shields — what we will not notarise

Frequently asked questions

Why can't you set up a real trust in Thailand?

Because Thai law does not recognise general trusts — the common-law trust has no foothold in the Civil and Commercial Code. The only statutory trust is the Trust Act B.E. 2550, limited to capital-market transactions (REIT / infra trust / ESOP / securitisation — see N15). A Thai family office therefore stacks a foundation + holding company + PPLI + IBC + LTR Visa + will + prenup to replicate trust functionality.

Can a Thai foundation exist purely for family legacy?

No. CCC § 110 requires a public-benefit purpose (education, religion, science, culture, charity). A foundation established for pure family trust purposes is a sham, is dissolved by the registrar, and exposes directors to criminal liability. The standard pattern is to use the foundation as a 10–20% philanthropic sleeve and place the balance in a holding company, PPLI, and the LTR stack.

BOI IBC vs ordinary holding company — which to use?

Choose **IBC** when you have group companies in at least one foreign country, a real treasury / IP / tech-support function, spending in Thailand of at least THB 60M / year, and need the 15% flat PIT for foreign experts. Choose a **plain holding company** when there is no group, you only need a single SPV over domestic assets, and cost matters. Most UHNW families end up stacking IBC + foundation + several sub-holdings.

Does the LTR Visa still exempt foreign-source income in 2026?

Yes — under Royal Decree LTR B.E. 2565 and EEC Office Notification 2/2565. Note that the Revenue Department's 2024 amendment of Orders Por. 161/162 made foreign-source income brought into Thailand taxable in the year of remittance (no longer only the year earned) — but **LTR holders are carved out** of that rule. Foreign-source income remitted by an LTR holder remains untaxed, which is currently the most powerful tax benefit available to UHNW residents in Asia.

Can PPLI really be used in Thailand?

Yes — via OIC-licensed insurers with PPLI approval under Notification 8/2562 (Allianz Ayudhya, AIA Thailand, FWD, Muang Thai Life). Benefits: investment growth inside the policy is tax-deferred; the death benefit is inheritance-tax exempt under § 14; switching the underlying fund is not a taxable event. Minimum premium ~THB 25M. Most efficient when paired with the holding company and the foundation.

How much of a Thai holding company can a foreign settlor own?

Normally up to 49% (Foreign Business Act § 8; Land Code § 86 where land is held). Exceptions: US citizens / US entities can hold 100% under the Treaty of Amity 1968; BOI-promoted entities can be 100%; ROH / IBC service companies can be 100%; carve-outs apply under JEPA / RCEP for certain sectors. Nominee shareholding to dodge the 49% cap is criminal and triggers forfeiture of possession.

Is a family constitution enforceable in Thai courts?

Not directly — a family constitution is soft law / a charter. Binding force flows through the shareholders' agreement (CCC § 1129 — enforceable in civil court), foundation bylaws (enforceable through the registrar), and the will + prenup (enforceable in probate court). Notarising the family constitution gives it evidentiary weight and cross-border recognition.

How do CRS and FATCA affect a Thai family office?

Thailand joined the CRS MCAA in 2566 and signed the FATCA IGA in 2559. Thai financial institutions (banks, insurers, securities firms, asset managers) must report account holders and UBOs who are foreign tax residents. A passive NFE foundation or holding company must disclose controlling persons. PPLI is reportable cash-value insurance. A well-built structure relies on substance and transparency — concealment is criminal tax evasion in both jurisdictions.

How does Thai inheritance tax hit a family office?

Threshold THB 100M per heir per lifetime (Inheritance Tax Act B.E. 2558). Rate is 5% for direct descendants / parents and 10% for other heirs. Spouse: 100% exempt. Public charitable foundation: 100% exempt. PPLI death benefit: exempt under § 14. Pre-mortem gifts made at least five years before death reduce the tax base. Standard moves: donate into the foundation, channel investment through PPLI, carve out the spouse via prenup, gift early to descendants.

How does a successor-trustee POA work in Thailand?

Thailand has no successor-trustee concept of its own (no trust). Practitioners use a **springing POA** under CCC §§ 797–844 that triggers on settlor incapacity (medical certificate + court order) and grants the successor power over the holding company, the foundation board, and PPLI surrender rights. The POA must be notarised and registered for real-estate transactions, and apostilled for cross-border use.

What does family-office notarisation cost?

Fixed fees: foundation charter + registration quote on request (phone / LINE / email); holding-company articles + SHA quoted on request; family-constitution notarisation quoted on request; BOI IBC application bundle quoted on request; LTR Visa application bundle quoted on request per applicant; PPLI documentation review quoted on request; concurrent will (TH + foreign) quoted on request; prenup / postnup quoted on request; successor-trustee POA quoted on request; MFA apostille quoted on request. **No % AUM, no contingency.**

How is confidentiality and PDPA compliance handled?

Attorney-client privilege under Lawyers' Ethics § 12; PDPA §§ 24 + 26 for beneficiary / family-member data; the family charter separates a public section from a confidential schedule; the UBO registry is shared only with AMLO and the relevant regulator (not public); cloud storage is ISO 27001 with AES-256; Lloyd's PI cover at THB 100M per occurrence; 10-year document retention under AMLO / Revenue / OIC rules.

แหล่งอ้างอิง / Authority References

16,168+ clients served

ลูกค้าจริง 60+ สัญชาติทั่วโลก ใช้บริการ Notary, แปลรับรอง, MFA และสถานทูตกับเรา

Verified clients
  • "ทีมงานช่วยจัดเตรียมหนังสือมอบอำนาจสำหรับใช้ที่ออสเตรเลียได้รวดเร็วมาก พร้อมประสานงาน NAATI ครบจบในที่เดียว"

    K. PimPOA → NAATI · 2025
  • "Very professional notary service. Document was certified, translated and ready for the UK embassy in two business days."

    Daniel R. (UK)Affidavit → UK Embassy
  • "ใช้บริการรับรอง Affidavit + รายชื่อผู้ถือหุ้นเพื่อจดทะเบียนสาขาที่สิงคโปร์ ทีมงานละเอียดและตอบกลับไว"

    บริษัทคู่ค้าCorporate Pack · 2025

Free consult: Family Office & Wealth Structure Notarization (Foundation · Holding Co · IBC · PPLI · LTR Visa)

Send the family constitution, shareholders' agreement, or foundation charter via LINE — notarial attorney + tax counsel + BOI specialist + OIC liaison reply within 2 h, MFA Apostille (HCCH (in force for Thailand 28 February 2027)) included

Playbook: marriage, divorce and family documents across borders

Short answer: A Thai–foreign marriage registration requires an affirmation of freedom to marry from the foreign partner's embassy, translated into Thai and legalised before filing at the district office. Divorce, legitimation and custody papers usually need further certification to be accepted abroad.

Documents to prepare

Thai spouse

  • Original ID card and house registration
  • Name-change records, if any
  • Divorce certificate or death certificate of a former spouse, if previously married

Foreign spouse

  • Affirmation of freedom to marry from your embassy or home authority
  • Original passport with a copy of the data page
  • Legalised Thai translation of the affirmation
  • Divorce or death records of a former spouse with translation, if applicable

Other family matters: legitimation, custody, adoption

  • Child's birth certificate and house registration
  • Court order or agreement on parental authority, if any
  • Parental consent signed before an authorised certifying officer

Process steps

  1. 1. Confirm the requirements of the registrar and destination

    Establish which form of affirmation the foreign partner needs and which translation layers the district office requires.

    Same day

  2. 2. Obtain the embassy affirmation

    The foreign partner applies at their embassy or consulate in Thailand under its own booking and form requirements.

    1–10 working days (estimate, varies by mission)

  3. 3. Translate and legalise

    Translate the affirmation into Thai with passport-matching spelling, then file for legalisation at the Department of Consular Affairs.

    1–3 working days (estimate)

  4. 4. Register at the district office

    Both partners attend with witnesses as required by the registrar and receive the marriage certificate the same day when the file is complete.

    1 working day

  5. 5. Legalise the marriage record for overseas use

    Request the English extract, translate and legalise it, then file at the destination embassy as the receiver requires.

    3–10 working days (estimate)

What to watch out for

  • Most affirmations have a short validity; a delayed file usually means starting again.
  • A single character difference between the translation and the passport can stop registration.
  • Some foreign divorce records must be certified in the issuing country before use in Thailand.
  • Failing to update civil status records after registration can affect later visa filings and entitlements.
  • Custody arrangements carry significant legal effect; take advice before signing any consent document.

Handling it yourself versus letting our team coordinate

CriterionDo it yourselfOur team handles it
Embassy appointmentsYou book and complete the forms yourselfWe prepare the forms and pre-check documents before the appointment
Translation and legalisationRisk of spellings that do not match official recordsWe reconcile spellings across every document before filing
Coordination with the registrarYou confirm conditions district by districtWe confirm in advance and assemble the file to match
Later use abroadOften means restarting the certification chainThe full chain is planned from the outset

We advise, not just execute

  • Assess your family document position and flag risks before work starts
  • Advise whether to register in Thailand or abroad first, based on your relocation plan
  • Reconcile names and dates across every document
  • Continue support when the marriage record is later used for a spouse visa

If you would rather not spend an important family milestone queuing at agencies, our advisory team can run everything from the affirmation to documents ready for overseas use. Initial consultation is available by phone, LINE or email.

All durations are working-day estimates excluding agency queues, and are not a guarantee of any authority's decision.

Sources: กรมการปกครอง — งานทะเบียนครอบครัวและทะเบียนราษฎร · กองสัญชาติและนิติกรณ์ กรมการกงสุล กระทรวงการต่างประเทศ · Last reviewed: 2026-08-10

Document and legalization advisers with 15+ years of practice

We advise throughout the matter, not just process paperwork

Before we start, we read your actual documents and confirm the legalization route matches what the receiving authority asks for. During the work we report progress, and after delivery we still answer questions about how to submit the file.

Before we start — document risk review

  • Check that names, dates and document numbers match across every page
  • Confirm whether the receiving body needs originals, certified copies or digital files
  • Tell you early if a document must be reissued or re-extracted first

While the matter runs — filing and status updates

  • Report which step is in progress with working-day estimates
  • Respond immediately when an authority requests extra documents
  • Confirm official fees before each filing step

After delivery — support until the file is usable

  • Explain how to submit the file to the destination authority or embassy
  • Keep a copy on record so extra sets can be issued later
  • Answer follow-up questions when the destination asks for supporting papers

We prepare documents to the requirements of the receiving authority. Any approval decision remains at that authority's discretion.

Send your documents on LINE for a preliminary review, a recommended legalization route and a written quote.

Marriage, divorce, and cross-border family documents in Thailand

Practical guidance before you start

  • Foreign nationals usually need an affidavit or certificate of no impediment from their embassy first, then translation and consular legalization before the district registrar will accept it.
  • Book the district (amphoe/khet) registrar in advance and ask that office for its actual checklist — local practice details vary.
  • Keep name spellings identical across the passport, every translation, and every civil-registry document in the set.
  • If previously married, bring proof the marriage ended — divorce certificate or death certificate — translated and certified as required.
  • If the Thai marriage certificate will be used abroad, plan the certified extract, translation, and legalization in one run.
  • Discuss matrimonial property or a prenuptial agreement with a lawyer before the registration date; some entries can only be recorded on that day.

Common reasons documents get rejected

  • Translating before the embassy stamp is applied, so the translation misses the stamp and has to be redone.
  • Inconsistent name spellings across translations, which the registrar will refuse.
  • Turning up without the witnesses the office requires, or with witnesses lacking original ID.
  • Assuming a Thai marriage certificate is automatically recognised abroad — many countries require a separate registration.
  • Letting the status certificate expire in the queue; several issuers cap validity in months.
  • Divorcing abroad without giving it effect under Thai law, leaving civil-registry records inconsistent.

Have these ready

  1. Original passports for both parties; Thai ID and house registration for the Thai party
  2. Embassy affidavit of marital status with translation and legalization
  3. Evidence that any previous marriage ended, with translation
  4. Witnesses with original ID as the registrar requires

Details that vary — verify every time

Affidavit formats and wording differ by embassy, and many require a prior appointment.
How to verify: Check your own embassy's page and secure the appointment before fixing a registration date.
Validity of the status certificate is set both by the issuer and by the receiving registrar.
How to verify: Ask both in writing before starting translation and legalization.

General guidance, not a case-specific determination. Requirements change with agency notices — confirm with the receiving authority before you act.

Sources: กรมการปกครอง กระทรวงมหาดไทย (สำนักทะเบียน อำเภอ/เขต) · กองสัญชาติและนิติกรณ์ กรมการกงสุล กระทรวงการต่างประเทศ · สภาทนายความในพระบรมราชูปถัมภ์ · Last reviewed: 2026-08-04

Related

Related family-office & private-wealth notary services

For HNWI / UHNWI / foreign settlors

Why marriage and family filings get rejected — and how to fix it

Short answer: District offices refuse affirmations of freedom to marry that have not been translated and certified by MFA, bundles with inconsistent name spellings, and files missing proof that a prior marriage ended. Complete the chain before attending the district office.

District office refused the embassy affirmation

Underlying cause
Not translated into Thai and certified by MFA
Prevent before filing
Plan embassy → translation → MFA → district office
How to fix a rejection
Translate, certify, then re-attend
Estimated time cost
Adds roughly 2–5 working days (estimate)

Passport and translation spellings differ

Underlying cause
Phonetic transliteration
Prevent before filing
Use passport spelling throughout the bundle
How to fix a rejection
Correct and re-certify the translation
Estimated time cost
Adds roughly 1–3 working days (estimate)

No proof that a previous marriage ended

Underlying cause
Divorce certificate, judgment or death certificate missing
Prevent before filing
Collect dissolution evidence before attending
How to fix a rejection
Obtain, translate and certify the missing record
Estimated time cost
Adds roughly 5–15 working days (estimate)

Registration could not proceed on the day

Underlying cause
Too few witnesses or no interpreter for the foreign spouse
Prevent before filing
Confirm witness and interpreter requirements in advance
How to fix a rejection
Rebook with witnesses and interpreter present
Estimated time cost
Adds roughly 1–7 working days (estimate)

We check the affirmation, translation, certification, appointment and interpreter so registration completes in a single visit — ask our advisers to plan the date with you.

Durations are working-day estimates excluding agency queues, and are not a guarantee of any authority's decision.

Sources: กรมการปกครอง (Department of Provincial Administration) · กองสัญชาติและนิติกรณ์ กรมการกงสุล กระทรวงการต่างประเทศ · Last reviewed: 2026-08-10

Service steps at a glance and the documents you need first

A Thai–foreign marriage registration requires an affirmation of freedom to marry from the foreign partner's embassy, translated into Thai and legalised before filing at the district office. Divorce, legitimation and custody papers usually need further certification to be accepted abroad.

How the work runs

  1. Confirm the requirements of the registrar and destination — Same day
  2. Obtain the embassy affirmation — 1–10 working days (estimate, varies by mission)
  3. Translate and legalise — 1–3 working days (estimate)
  4. Register at the district office — 1 working day
  5. Legalise the marriage record for overseas use — 3–10 working days (estimate)

Documents to prepare first

  • Original ID card and house registration
  • Name-change records, if any
  • Divorce certificate or death certificate of a former spouse, if previously married
  • Affirmation of freedom to marry from your embassy or home authority
  • Original passport with a copy of the data page
  • Legalised Thai translation of the affirmation

If you would rather not spend an important family milestone queuing at agencies, our advisory team can run everything from the affirmation to documents ready for overseas use. Initial consultation is available by phone, LINE or email.

Durations are working-day estimates excluding agency queues and are not a guarantee of any decision.

A legal translator's desk with source document, translation, dictionary and certification stamp
Translations filed with authorities must carry the translator's certificate of accuracy alongside the source text.

Official sources & further reading

Statements on this page follow the authorities below. Confirm current requirements with the authority before filing. Last reviewed 2026-07-29.

Related questions

When was this page last reviewed?
Each page shows its last-reviewed date in the sources section. Authority requirements change, so confirm current conditions with the receiving authority before proceeding.
What is the fastest way to reach you?
Call or message on LINE during business hours for an initial route check, and send legible photos of the documents by email or LINE so the scope can be assessed accurately.
Where do I start if I am unsure which certification I need?
Start with three questions: which authority will receive the document, in which country, and by what date. Those answers determine the authentication route, the translation language and the full sequence.
Why are fees not published on the site?
Scope varies widely with document count, language and the consular steps involved, so we quote against the actual work and confirm details by phone, LINE or email before starting.

Related services

Fees are not published online — ask our team by phone, LINE or email for a scope-based quote.