Notary attorneys
Notarisation of **family-office structures** for HNWI / UHNWI / foreign settlors with Thai-situs assets, using
Family Office Notarization · Foundation · Holding Co · BOI IBC · PPLI · LTR Visa · Inheritance Tax · HCCH Apostille (มีผล 28 ก.พ. 2570)
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.**
**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.
Notarisation of **family-office structures** for HNWI / UHNWI / foreign settlors with Thai-situs assets, using
Provinces · 50+77
16,168+ clients · 60+ nationalities
Send the family constitution, shareholders' agreement, or foundation charter via LINE — notarial attorney + ta
Risk shields — what we will not notarise
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.
ลูกค้าจริง 60+ สัญชาติทั่วโลก ใช้บริการ Notary, แปลรับรอง, MFA และสถานทูตกับเรา
"ทีมงานช่วยจัดเตรียมหนังสือมอบอำนาจสำหรับใช้ที่ออสเตรเลียได้รวดเร็วมาก พร้อมประสานงาน NAATI ครบจบในที่เดียว"
"Very professional notary service. Document was certified, translated and ready for the UK embassy in two business days."
"ใช้บริการรับรอง Affidavit + รายชื่อผู้ถือหุ้นเพื่อจดทะเบียนสาขาที่สิงคโปร์ ทีมงานละเอียดและตอบกลับไว"
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
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.
Thai spouse
Foreign spouse
Other family matters: legitimation, custody, adoption
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. 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. 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. 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. 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)
| Criterion | Do it yourself | Our team handles it |
|---|---|---|
| Embassy appointments | You book and complete the forms yourself | We prepare the forms and pre-check documents before the appointment |
| Translation and legalisation | Risk of spellings that do not match official records | We reconcile spellings across every document before filing |
| Coordination with the registrar | You confirm conditions district by district | We confirm in advance and assemble the file to match |
| Later use abroad | Often means restarting the certification chain | The full chain is planned from the outset |
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
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.
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.
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
For HNWI / UHNWI / foreign settlors
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.
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
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.
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.

Statements on this page follow the authorities below. Confirm current requirements with the authority before filing. Last reviewed 2026-07-29.
Fees are not published online — ask our team by phone, LINE or email for a scope-based quote.