Inheritance Law Thailand: How Foreign Estates Are Distributed

Thai inheritance law operates under Book VI of the Civil and Commercial Code (Sections 1599–1649 for succession rights, Sections 1711–1733 for estate administration). The core principle that trips up foreign families: no titled asset in Thailand — bank account, condo, vehicle, company shares — can be transferred to an heir without a formal Thai court order appointing an estate administrator. This applies whether or not a valid will exists.

The Six Statutory Heir Classes

When a foreign national dies intestate (without a valid will covering Thai assets), the estate is distributed according to Section 1629's six priority classes:

Higher-priority classes exclude lower ones entirely. If the deceased has children, parents, siblings, grandparents, and aunts all surviving, only the children inherit (along with the spouse).

Surviving Spouse Rights

A legally registered surviving spouse doesn't fit into the six classes — they have a parallel entitlement. The estate splits in two stages:

First, marital property (Sin Somros — assets acquired during the marriage) is divided. The surviving spouse takes their half outright. Only the deceased's half enters the estate.

Second, the spouse shares equally with whichever heir class is present. If Class 1 heirs (children) exist, the spouse takes an equal share alongside them. If only Class 2 heirs (parents) survive, the spouse takes half and the parents split the other half.

Since January 23, 2025, Thailand fully recognizes same-sex marriage. Same-sex spouses hold identical inheritance, consular, and probate rights.

Unmarried partners have no automatic rights. Common-law partners — including long-term relationships without legal marriage registration — receive nothing under intestacy unless named in a valid will. This is one of the most common sources of family conflict after a foreign national's death in Thailand.

What Happens When There's a Will

A foreign will can be structurally valid in Thailand under Sections 39 and 40 of the Conflict of Laws Act. If the will was properly executed under the laws of the country where it was made, Thai courts generally respect its form. However:

• Physical property, registered assets, and bank accounts located in Thailand remain subject to Thai law and Thai court jurisdiction, regardless of what the will says.
• The will doesn't bypass probate. The court must still appoint an estate administrator before any institution will release assets.
• If the will conflicts with Thai mandatory succession rules (such as the surviving spouse's statutory share of marital property), the Thai provisions prevail for assets within Thailand's borders.

Having a Thai will that specifically addresses Thai-situs assets is the most reliable way to avoid intestacy complications and reduce probate timelines.

The Probate Process

Thai probate is court-supervised and mandatory. The petition goes to the Provincial Court (or Bangkok Civil Court) with jurisdiction over the deceased's last domicile or the location of their primary Thai assets.

The typical timeline for an uncontested case:

1. Petition preparation — 1 to 3 weeks (document gathering, translation, legalization)
2. Filing — 1 to 2 weeks (THB 200 court fee)
3. Public notice period — 30 to 60 days (newspaper publication to invite creditor/heir objections)
4. Court hearing — Half a day (10 to 15 minutes if uncontested)
5. Order issuance + 30-day appeal period — 2 to 6 weeks
6. Certificate of Final Judgment — Issued with the Red Garuda Emblem after the appeal window closes

Only after step 6 will banks, the Land Department, the Department of Land Transport, or corporate registries process any asset transfers.

Key Differences From Common-Law Countries

Foreign families accustomed to UK, US, or Australian probate systems often stumble on these:

• No automatic survivorship. Thai law doesn't recognize the right of survivorship on joint property or bank accounts the way common-law countries do.
• No informal distribution. Even small estates go through the court.
• Foreign probate orders carry no weight. A UK Grant of Probate or US Letters Testamentary won't be accepted by Thai institutions. You need a separate Thai proceeding.
• The 49% condo rule adds complexity for property. Foreign ownership in any single condominium project can't exceed 49% of total floor area, and inheritance transfers must comply with this quota.

For the full step-by-step process — from emergency procedures within 72 hours through probate, bank accounts, and property transfers — the Someone Died in Thailand: English Speaker's Emergency Guide covers everything with checklists and timelines.

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