Legal service for foreign clients
Powers of Attorney That the Land Office, Banks and Courts Actually Accept in Thailand
A mandate drafted too widely endangers the grantor; drafted too narrowly it leaves the attorney unable to act.
Quick answer
A power of attorney must state a scope that matches the task, and many authorities impose their own form — the Land Department uses a prescribed form for titled land, while banks and the company registrar use theirs. Where the grantor is overseas, signature before a Thai embassy or a certified-then-legalised route is required. We draft to the task, get the stamp duty right, and run the errand through to completion. From THB 4,500.
From THB 4,500 — From THB 4,500 to draft and certify one instrument; attending the agency on your behalf is quoted by location. · Drafted in 1–2 business days; overseas signature adds 1–3 weeks
Who this is for
- Landowners unable to attend the land office in person
- Foreigners who need a representative to act in Thailand while they are abroad
- Heirs authorising an estate administrator to act for them
- Companies letting staff file with agencies in place of a director
- Older clients planning ahead for the management of their assets
What you receive
- A mandate with explicit scope, duration, and limits
- Selection of the correct prescribed form for the receiving authority
- Stamp duty applied at the correct rate for the transaction type
- Certification of the grantor's signature and two witnesses
- Coordination with the Thai embassy where the grantor is overseas
Documents to prepare
- Identity documents of both grantor and attorney
- The title deed or right document tied to the transaction
- The latest company affidavit where the grantor is a legal entity
- House registration and marriage certificate where spousal consent is required
- A precise description of the transaction to be carried out
How it works
5-step process
- 1
Write the scope as narrowly as the task allows
Granting power to sell everything when one plot needs transferring opens a door that is hard to close.
- 2
Check whether spousal consent applies
A dealing in marital property without consent can be undone later even if the mandate itself is flawless.
- 3
Deal with stamp duty from the outset
Under-stamped documents cannot be used in evidence until the shortfall and surcharge are paid.
- 4
Put an end date in the document
An open-ended mandate survives until revoked in writing, and revocation is exactly what people forget.
- 5
Notify revocation to every body that saw it
Revocation binds third parties only once they know, so letters to the bank and the land office are essential.
FAQ
Frequently asked questions
I live abroad — how do I authorise a land sale in Thailand?
Either sign at a Thai diplomatic mission where you live, or sign before a local notary and route the paper through that state's foreign ministry and afterwards the Thai mission.
Can one instrument cover several matters?
Legally yes, but many offices retain the original, which blocks its use elsewhere, so separate instruments per task are safer.
What if the attorney exceeds the scope?
Acts beyond the grant do not bind the grantor unless later ratified, and the attorney may be liable for the resulting loss.
How many witnesses are needed?
Normally two adults with no interest in the transaction, though certain prescribed forms add further requirements.
Does the mandate survive the grantor's death?
It ends at death, and unfinished business must go through a court-appointed estate administrator instead.
Must it be written in Thai?
Filings with Thai agencies must be in Thai or accompanied by a certified translation, so we produce bilingual instruments that both sides can use.
Related services
Land & Real-Estate Lawyer — Title, Lease, Usufruct
Title due diligence, sale, lease, usufruct, superficies — and closing at Land Office.
Affidavits and Sworn Statements Before a Notarial Services Attorney
What makes a statement usable abroad is not elegant drafting but a deponent who swore it correctly in front of someone entitled to take the oath.
Inheritance, Wills & Probate Lawyer
Petition administrator, draft wills, litigate inheritance shares.
Written by: Thai Law & Accounting Services — attorneys and licensed accountants
Reviewed by: Reviewed by a Notarial Services Attorney registered with the Lawyers Council of Thailand.
Last updated: 2026-08
Information as of August 2026. Government fees and processing times change — verify with the relevant agency before acting, or let our team verify for you.