Estate Planning · United Kingdom
Wills & Inheritance Planning · United Kingdom
IHT-optimised estate planning for Thai nationals with UK domicile risk or family in England, Wales and Scotland.
AI Quick Answer · Speakable
England and Wales apply a nil-rate band of GBP 325,000 plus a residence nil-rate band of GBP 175,000, taxing the excess at 40%. Because UK domicile is 'sticky', a Thai national resident in the UK for 15 of the last 20 years becomes deemed UK domiciled and worldwide assets — including Thai property — fall inside IHT unless sheltered by an excluded property trust set up before deemed status attaches.
Quick facts
- Succession law: Wills Act 1837 (England & Wales) · Succession (Scotland) Act 1964 · Inheritance and Trustees' Powers Act 2014 modernised intestacy.
- Forced heirship: No forced heirship in England and Wales, but the Inheritance (Provision for Family and Dependants) Act 1975 lets eligible dependants apply for court-ordered reasonable provision. Scotland preserves 'legal rights' on moveable estate.
- Accepted will formats: Signed in the presence of two independent witnesses per s.9 Wills Act 1837. UK courts do not recognise holographic wills.
- Inheritance tax: IHT 40% above nil-rate band (GBP 325k) + residence nil-rate band (GBP 175k). Spouse and civil-partner transfers are exempt without limit. Non-Dom regime reformed from 2025.
- Probate timeline: 6–12 months for a simple estate; 12–24 months if contested under the 1975 Act.
- Treaty position: No UK-Thailand estate tax treaty. UK-Thailand income tax treaty dates to 1981.
- Package fee: From THB 55,000 — bundled UK companion will plus Thai will.
Key risk for Thai nationals & expats
UK domicile status controls IHT exposure worldwide. A Thai national who lived in the UK for 15 of the last 20 years is deemed UK-domiciled and Thai assets fall within IHT. Pre-2025 non-dom planning is being replaced by a residence-based regime.
Probate process in United Kingdom
Apply for a Grant of Probate (or Letters of Administration) via HMCTS. File IHT400 with HMRC. Court fee GBP 273 plus GBP 1.50 per office copy.
Recommended strategy
1) Settle an Excluded Property Trust with Thai assets before deemed-domicile status attaches. 2) Execute mirror Thai + UK wills with a non-revocation clause. 3) Place life insurance in trust so proceeds fall outside the estate.
Six-step dual-will pipeline
- 1
Global asset inventory
Catalogue every asset in United Kingdom, Thailand and any third jurisdiction. Classify by situs and beneficiary designation.
- 2
Domicile & tax-residency audit
Determine United Kingdom domicile status and residency threshold; assess IHT 40% above nil-rate band (GBP 325k) + residence nil-rate band (GBP 175k).
- 3
Draft dual will (Thai + United Kingdom)
Draft a United Kingdom will (Signed in the presence of two independent witnesses per s) alongside a Thai will with a mutual non-revocation clause covering Thai-situs assets.
- 4
Choice-of-law & forced-heirship strategy
No forced heirship in England and Wales, but the Inheritance (Provision for Family and Dependants) Act 1975 lets eligible dependants apply for court-ordered reasonable provision. Scotland preserves 'legal rights' on moveable estate. · Primary defensive move: 1) Settle an Excluded Property Trust with Thai assets before deemed-domicile status attaches.
- 5
Execute & legalise
Sign both wills before appropriate witnesses/notaries · Apostille or embassy legalisation between jurisdictions · secure originals with NYC Visa & Translation and a trusted third party.
- 6
Review every 3–5 years
Update on any material change (marriage, birth, asset sale, tax reform) and monitor legislative shifts (e.g. Swiss 2023, UK 2025).
Other jurisdictions we cover
FAQ · United Kingdom
Does United Kingdom enforce forced heirship?
No forced heirship in England and Wales, but the Inheritance (Provision for Family and Dependants) Act 1975 lets eligible dependants apply for court-ordered reasonable provision. Scotland preserves 'legal rights' on moveable estate.
Which will formats are recognised in United Kingdom?
Signed in the presence of two independent witnesses per s.9 Wills Act 1837. UK courts do not recognise holographic wills.
What does the United Kingdom probate process look like?
Apply for a Grant of Probate (or Letters of Administration) via HMCTS. File IHT400 with HMRC. Court fee GBP 273 plus GBP 1.50 per office copy.
How is inheritance tax calculated in United Kingdom?
IHT 40% above nil-rate band (GBP 325k) + residence nil-rate band (GBP 175k). Spouse and civil-partner transfers are exempt without limit. Non-Dom regime reformed from 2025.
Is there a Thailand-United Kingdom estate-tax treaty?
No UK-Thailand estate tax treaty. UK-Thailand income tax treaty dates to 1981.
How long does probate in United Kingdom take?
6–12 months for a simple estate; 12–24 months if contested under the 1975 Act.
What is the package fee starting point?
From THB 55,000 — bundled UK companion will plus Thai will.. Final quotation confirmed after asset review and dual-will scoping.
What is the top risk for a Thai national or expat?
UK domicile status controls IHT exposure worldwide. A Thai national who lived in the UK for 15 of the last 20 years is deemed UK-domiciled and Thai assets fall within IHT. Pre-2025 non-dom planning is being replaced by a residence-based regime.
What is the recommended dual-will strategy?
1) Settle an Excluded Property Trust with Thai assets before deemed-domicile status attaches. 2) Execute mirror Thai + UK wills with a non-revocation clause. 3) Place life insurance in trust so proceeds fall outside the estate.
How does the new residence-based IHT regime affect me?
From 6 April 2025 the UK replaces the deemed-domicile test with a residence-based test: after 10 years of UK tax residence, worldwide assets fall inside IHT, with a 10-year 'tail' after departure. Non-doms should review trust arrangements now.
Is my Thai LTR-holder spouse subject to UK IHT?
Only if UK-domiciled. Thai spouses who never acquire UK domicile receive unlimited spouse exemption on the first death, but the surviving Thai spouse's estate remains outside IHT for non-UK assets.
Where can I book a consultation?
Contact NYC Visa & Translation — call 083-2494999 · LINE @NYC168 · email contact@nyclegal.co.th. Discovery call is complimentary; formal opinions billed after scoping.
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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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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.