Can’t be at the Land Office on transfer day? Need someone to handle a bank, a vehicle or paperwork while you’re overseas? A power of attorney lets a trusted person act for you — but in Thailand the form, witnessing and (if signed abroad) legalization all have to be right, or the office will refuse it. This plain-English guide covers general vs specific POAs, the Land Department’s Tor Dor 21, common uses, how to revoke one, and how to protect yourself from the very real risks of handing over authority. Unbiased, never paid placement.
A power of attorney lets someone act for you in Thailand. For a one-off job — like transferring a condo — use a specific POA on the right form (for property, the Land Office’s Tor Dor 21), not a broad general one. Sign it witnessed, never leave blanks, and if you sign it abroad get it notarized and legalized first. You can revoke it in writing at any time — just tell the agent and anyone relying on it.
A power of attorney (POA) — in Thai often nangsue mob amnaj — is a written document in which you (the principal or grantor) authorize another person (the attorney or agent) to act on your behalf. It’s governed mainly by the agency provisions of Thailand’s Civil and Commercial Code. Foreigners typically need one when they can’t be physically present for something that requires their signature: a condo transfer at the Land Office while they’re overseas, a bank or visa matter handled by a representative, registering a vehicle, or letting a lawyer manage a company filing. The power only extends as far as the document says — so the wording, and the type of POA you choose, matter a great deal.
Authorizes one clearly described act — transfer this named condo, register this vehicle, represent me at this office on this date. Narrow, safer, and far more readily accepted by Thai authorities. For property, it’s done on the Land Department form.
Gives your agent wide authority over many matters while you’re away or unable to act. Convenient, but it hands over a lot of control — and offices often scrutinise or refuse open-ended powers. Use sparingly, name someone you fully trust, and add limits.
Rule of thumb: grant the least authority needed for the task. A specific POA for a single transaction protects you and moves faster than a general one.
Each authority (Land Office, bank, DLT, company registrar) may insist on its own form or wording, so confirm what the receiving office accepts before you draft.
For land and condominium dealings, the Land Department has its own POA form — commonly the Tor Dor 21 (Tor.Dor.21) — used to authorize someone to transfer ownership, register a mortgage or carry out other registrations at the Land Office. It’s a specific power tied to the exact property and act described on it. The form must be completed with great care: the correct property details, the precise act authorized, your certified true copies of passport/ID, and witnesses. A golden rule: never sign a Tor Dor 21 with blank spaces — blanks can be filled in later with terms you never agreed to. Because the stakes are high, most buyers have a lawyer prepare and check it. See the condo buying process and transfer fees for how the transfer day itself works.
Whatever the purpose, a POA that holds up generally includes:
Thai POAs are typically signed in front of witnesses, and you’ll usually attach copies of your passport (photo page and visa/entry stamp) each signed by you as a “certified true copy.” Make sure the name spelling matches your passport exactly — a mismatch is a common reason a POA is rejected. If the agent is also providing ID, theirs goes in too. For property and bank matters in particular, the office may want to see the originals and may have rules about who can witness. When the document is in Thai (as Land Office forms are), have a reliable translation so you understand precisely what you’re granting before you sign.
If you’re outside Thailand when you sign — say you need to authorize a condo transfer back in Bangkok — a Thai office generally won’t accept the POA on its own. Because Thailand is not an apostille country, the document usually has to be notarized (by a notary public or, if you’re already in Thailand, a Notarial Services Attorney) and then legalized through the chain: your country’s foreign ministry, then the Royal Thai Embassy, and translation/certification as needed. Build in extra time for this. Our full walkthrough is in document legalization & notary services in Thailand.
You can generally revoke a POA at any time. Do it in writing; notify the agent clearly and in a way you can prove (a dated letter or recorded message); retrieve or destroy the original copies; and — critically — tell any third party that was relying on it (the bank, Land Office or registrar) to stop accepting it, because a counterparty acting in good faith on an un-revoked POA can complicate things. A POA also typically ends automatically on completion of the specific task, on its written expiry date, or on the death of either party. Where money or property is involved, have a lawyer handle the revocation cleanly.
A broad POA can let someone move your money or sign away your property, so the worst-case really matters. Be very wary of anyone pressing you to grant wide authority or to sign blank or open-ended forms — a legitimate transaction never needs that. When unsure, narrow the power and get independent advice. See hiring a lawyer in Thailand.
A clean, specific power of attorney keeps your deal moving when you can’t be in the room. Explore residences and the tools that help you buy and settle with confidence.
General information only — not legal, immigration or tax advice. Thailand’s Civil and Commercial Code provisions on agency, the Land Department’s power-of-attorney forms (including the Tor Dor 21), notarization and legalization requirements, witnessing and certified-copy practice, bank and government-office rules, and revocation procedures all change over time and are applied case by case by individual offices, banks, Land Offices, courts and authorities. Confirm the current, exact requirements with the office that will receive your POA and a qualified Thai lawyer before relying on anything here. BAANLYY never takes paid placement.
Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.