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Probate & Inheritance — Cross-Border

Hague 1973 · Hague 1985 Trusts · EU 650/2012 · UNIDROIT 1973 · STEP · US/UK/AU/SG

Probate & Inheritance services (12)

Thai Probate / Estate Administrator Petition
Civil Court / Family Court + Civil & Commercial Code §§ 1711-1733

Petition to appoint estate administrator + publication + inquiry + court order + asset re-titling.

60-180 days · 85,000-285,000 บาท
US Ancillary Probate (for US-situs assets)
State Probate Court (CA, NY, FL, TX) + Uniform Probate Code

Admit foreign will + ancillary letters + 4-mo creditor notice + distribution.

180-540 days · 385,000-985,000 บาท
European Certificate of Succession (EU Reg. 650/2012)
Notary / court in EU last-habitual-residence + Brussels IV Regulation

ECS issued in 25 EU member states + EU-wide validity + no apostille required.

90-240 days · 285,000-685,000 บาท
UK Grant of Probate / Letters of Administration
HMCTS Probate Registry + Senior Courts Act 1981 + Inheritance Tax Act 1984

PA1P/PA1A + IHT400/IHT205 + court fee + grant 8-16 weeks.

60-180 days · 185,000-485,000 บาท
Australian Probate (state Supreme Court)
Supreme Court of NSW/VIC/QLD/WA + Succession Act + Trusts Act

Notice of intention + affidavit + grant + Capital Gains Tax assessment.

90-240 days · 285,000-685,000 บาท
International Will (UNIDROIT 1973 Uniform Law)
UNIDROIT 1973 Convention + Authorised Person (notary, lawyer, consul)

International Will form + 2 witnesses + Authorised Person + valid in 16+ states.

7-21 days · 85,000-185,000 บาท
Cross-border Trust Deed (Hague Trusts Convention 1985)
Hague Trusts Convention 1985 + Singapore/Jersey/Cayman trustee + STEP

Discretionary trust + protector + STEP trustee + Thai recognition via court.

60-180 days · 485,000-1,485,000 บาท
Thai Inheritance Tax Clearance (Inheritance Tax Act 2558)
Revenue Department + Inheritance Tax Act 2015 + 5% (parent/child) / 10%

File ภ.ม.60 within 150 days + 100M THB exemption + pay within 2 years.

60-180 days · 125,000-385,000 บาท
US-UK Estate Tax Treaty Planning (1978/1980)
IRS Form 706-NA + HMRC IHT400 + 1978 US-UK Estate Tax Treaty

Treaty domicile test + dual credit + 706-NA + IHT400 + double-tax relief.

180-540 days · 585,000-1,485,000 บาท
Spousal Elective Share / Family Provision Claim
Civil Code § 1635 (TH) + Inheritance & Family Provision Act 1975 (UK) + state laws (US)

Spousal elective share 1/2 + child legitime + court adjudication + maintenance order.

120-365 days · 285,000-685,000 บาท
Digital Asset Estate (Crypto / NFT / Cloud)
RUFADAA + EU DORA + Thai SEC + ป.พ.พ.

Wallet inventory + private key escrow + exchange KYC + cold storage instructions.

30-90 days · 185,000-485,000 บาท
Guardianship & Conservatorship (incapacity)
Civil Code §§ 28-35 (TH) + Mental Capacity Act 2005 (UK) + state laws (US)

Lasting Power of Attorney + guardianship petition + conservatorship + medical certification.

60-180 days · 185,000-485,000 บาท

Service packs

Jurisdictions (12)

Every step of this service is handled by Thai attorneys holding both a practising licence and the Notarial Services Attorney certification from the Lawyers' Council of Thailand under Royal Patronage. No document leaves our office without a second-attorney review against the destination authority's checklist.

Why this matters

Our End-to-End Cross-Border Probate & Trusts desk handles one of the highest request volumes in the firm — currently spanning dozens of primary categories, each with its own evidentiary checklist, certification chain, and turnaround. Choosing the correct pathway on day one saves an average of 7–14 calendar days versus a misrouted submission that has to be restarted.

Because end-to-end cross-border probate & trusts sits at the intersection of Thai administrative law and the destination authority's evidentiary rules, the cost of a misstep is rarely the filing fee — it is the lost window. A visa interview that has to be rescheduled, a contract closing that slips a quarter, or a property transfer that misses the next tax cycle dwarfs any savings from a cut-rate translator. Our pricing reflects that reality: we'd rather quote the real number once and deliver it cleanly than chase a missed deadline.

How we deliver it

Our standard workflow has five gates: (1) source-document assessment and pathway recommendation within one business hour; (2) preparation and certified translation by registered translators; (3) notarisation by a licensed Notarial Services Attorney; (4) MFA Chaeng Watthana submission with daily tracking; (5) destination embassy or consulate endorsement, with the final dossier hand-delivered or shipped back to you under signature.

  1. Intake & free document review (≤1 business hour).
  2. Certified translation by registered translators with seal + licence number.
  3. Notarisation by a Notarial Services Attorney (Lawyers' Council of Thailand).
  4. MFA Chaeng Watthana endorsement (Department of Consular Affairs).
  5. Destination embassy / consulate finalisation + return delivery.

Document readiness before filing

End-to-End Cross-Border Probate & Trusts matters most when the filing window is narrow and the receiving authority applies its checklist strictly. Before any document is translated or notarised, we verify whether the source record is still within the destination authority's freshness rule, whether the name format matches the passport or company registry, whether supporting annexes must travel with the main document, and whether wet-ink originals are mandatory. This pre-flight stage is where most avoidable delays are prevented.

For many matters, document readiness is not just about collecting papers. It includes sequencing. Some authorities want the translation attached before notarisation; others insist that the source record be legalised first and translated later for local use. Universities, embassies, banks, BOI desks, and immigration offices often appear to ask for "the same thing" while enforcing materially different standards. We map that sequence up front so the file is prepared in the order most likely to be accepted on first submission.

Common pitfalls we prevent

The most common cause of rejection for first-time clients is using a source certificate that fails the destination authority's freshness rule (Thai household registrations older than six months, for example), translations missing the translator's licence number, or chain-of-certification steps performed in the wrong order. We screen for all three before any fees are incurred.

  • Stale source records (e.g. household registrations older than 6 months).
  • Translations missing the translator's licence number or seal.
  • Chain-of-certification steps performed out of order.
  • Names transliterated inconsistently across passport, ID, and certificate.

Transparent pricing & turnaround

All fees appear in a single transparent quote that bundles government charges, courier (EMS/Kerry), and attorney work — no hidden surcharges. Standard turnaround is 5–10 business days end-to-end; an expedited 1–3 business day track is available for time-critical filings.

Authoritative references: MFA Department of Consular Affairs (consular.mfa.go.th), Hague Conference on Private International Law (hcch.net), Lawyers' Council of Thailand (lawyerscouncil.or.th).

Quality control, evidence & accountability

Every end-to-end cross-border probate & trusts file we handle moves through a named-responsibility chain. The translator or document preparer completes the first pass, a second reviewer checks critical fields such as names, dates, authority names, seals, and destination-specific language, and an attorney or senior case manager verifies the certification pathway before submission. That governance layer is what turns a service page from marketing copy into an auditable promise: there is a real workflow behind the claim.

This is also central to E-E-A-T. Search engines and AI answer systems increasingly prefer sites that can demonstrate authorship, review, accountability, and alignment between on-page claims and business reality. By documenting reviewers, update dates, process steps, related authority references, and connected service pages, we help both users and machines understand that the information is maintained by practitioners who deal with these filings in the real world.

Frequently asked questions

How long does End-to-End Cross-Border Probate & Trusts take?

Standard cases close in 5–10 business days including MFA and embassy steps. Expedited track is 1–3 business days for an additional fee.

What documents do I need to prepare?

Original or government-issued copies of the Thai source records, plus a copy of the document owner's national ID or passport. We review your bundle for free before any work begins.

Do I have to appear in person?

In most cases, no — a signed power of attorney is sufficient. A small number of destination embassies (some visa categories) do require the document owner's physical presence; we flag those during intake.

Is the quote final?

Yes. Quotes are turn-key and include every government and courier fee. Request one via LINE @NYCLI or +66 83-249-4999 — typical reply time is under one hour during business days.

Do you serve clients outside Bangkok?

Yes. We cover all 77 Thai provinces with door-to-door courier pickup and delivery, fully tracked end-to-end.

Which destination countries are supported?

168 destinations including the 125 Hague Apostille jurisdictions and Non-Hague destinations that require in-Thailand embassy endorsement. See the Legalization hub for the full directory.

Reviewed by: Atty. Natthakarn (Notary Public licensee — Lawyers' Council of Thailand) · Last reviewed: 2026-06-15