Cross-Border Estate Planning Checklist for Expats in Thailand
Living in Thailand does not mean your estate exists only in Thailand. An expat may own a Thai condominium, maintain bank accounts offshore, hold US shares through an international platform and have pensions or property in their home country.
When several countries are connected to one estate, the outcome depends on more than where the person happens to live. Residence history, asset location, ownership, beneficiary circumstances and local succession procedures can all affect what happens after death.
Use this practical checklist to identify potential gaps before they become problems for your family.
1. List every asset and its legal owner
Create an asset register covering:
- Thai and overseas property
- Bank and investment accounts
- Company shares and business interests
- Pensions and retirement accounts
- Life assurance policies
- Vehicles and valuable personal possessions
- Digital assets and accounts
Record the legal owner, account provider, account number, country and approximate value. Do not assume that an asset’s currency or the location of the broker determines where it is legally situated. The underlying investment may be more important.
For example, stock in a company incorporated under US law may be treated as US-situated even when held through a broker outside the United States. For a deceased non-US citizen who was not US-domiciled, a US estate-tax return may be required when relevant US-situated assets and adjusted taxable gifts exceed US$60,000. The threshold is not indexed for inflation. [irs.gov],
2. Identify every country connected to the estate
Consider:
- Where you currently live
- Your citizenship and former countries of residence
- Where each asset is legally situated
- Where your beneficiaries live
- Whether an estate, beneficiary or both may be taxed
A move to Thailand does not necessarily end exposure elsewhere. From 6 April 2025, the UK applies a long-term residence test for Inheritance Tax. A person may qualify after being UK-resident for 10 of the previous 20 tax years, and exposure can continue for up to 10 tax years after leaving, depending on residence history.
3. Check each beneficiary’s position
Two beneficiaries receiving equal amounts may face different tax consequences if they live in different countries. Their residence, relationship to you and, in some jurisdictions, existing wealth or citizenship can affect the result.
Record each beneficiary’s full legal name, relationship, nationality and country of residence. Recheck these details whenever someone moves abroad, marries, divorces or dies.
4. Review ownership and beneficiary nominations
Joint ownership, lifetime gifts and beneficiary nominations are not interchangeable. Each can produce different tax, succession and administrative outcomes.
Review nominations after marriage, divorce or remarriage. Check whether pensions, life policies and selected accounts pass under your Will or directly under a nomination. A transfer mechanism that solves one issue may create another, so home-country tax and local ownership rules must be considered before making changes.
5. Make sure your Wills work together
Expats may need jurisdiction-specific Wills, but having one Will for every country is not an automatic rule. Each document must be limited carefully so that signing a new Will does not unintentionally revoke an existing one.
For Thai assets, check that your planning:
- Names a capable executor or estate administrator
- Meets Thai signing and witness requirements
- Can be supported in Thai during local proceedings
- Coordinates with Wills made in other countries
- Includes an accessible asset register
A foreign probate grant should not be assumed to transfer Thai assets automatically. Thai banks, courts and Land Offices may have their own requirements.
6. Understand the Thai inheritance-tax threshold
Thailand’s inheritance tax generally applies to covered assets received above THB100 million per recipient from one deceased person. The presentation identifies rates of 5% for ascendants and descendants and 10% for other recipients, while a surviving spouse is excluded from the Act. Covered categories include immovable property, securities, deposits or similar monies, registered vehicles and prescribed financial assets.
The statutory scope depends on the recipient and where the assets are situated, so the headline threshold should not be considered in isolation. The official English translation of Thailand’s Inheritance Tax Act is available from the
7. Prepare an emergency document file
Keep your Will, asset register, passport copy, property documents, insurance details, pension information and adviser contact details together. Tell your executor where the file is stored, but protect passwords and sensitive financial information appropriately.
Your plan should ultimately answer six questions: Which countries may tax the transfer? Where is each asset situated? Do your Thai and foreign Wills coordinate? Are nominations current? Where do your beneficiaries live? And who is authorised to act?
Turn the checklist into a workable plan
Cross-border estate planning is not simply about signing a Will. The documents must work with the ownership of your assets, relevant tax rules and the procedures institutions will follow after your death.
Business Class Asia helps internationally connected individuals coordinate Thai Wills, asset registers, beneficiary arrangements and cross-border succession planning. A structured review can identify conflicts and missing information before they leave loved ones navigating several countries at an already difficult time.
Business Class Asia provides structural planning and coordination only. This article is general educational information, not investment, legal or tax advice. Rules change, and qualified advice should be obtained in each relevant jurisdiction.