Power of Attorney to Register a Spouse’s Name on a Land Title (Thai Department of Lands, T.D. 21)

หนังสือมอบอำนาจ (ท.ด. 21) is the standard power of attorney form of Thailand’s Department of Lands (กรมที่ดิน). This version has the subject “ลงชื่อคู่สมรส” — registration of a spouse’s name — printed on it. With it the landowner (principal) authorises another person (agent) to register, at the Land Office, the name of the owner’s wife or husband on the title deed of the plot “as my spouse”, and to give statements to the officer until the registration is completed.

The form records the land as shown on the title deed (โฉนด): map sheet, land number, survey page, deed number, sub-district, district and province. The spouse’s title (นาง for a wife, นาย for a husband) and name are written into the powers text. The form is filled in in Thai.

• the principal — the landowner named on the title deed (ผู้มอบอำนาจ);
• the agent — the person who goes to the Land Office (ผู้รับมอบอำนาจ);
• the principal’s wife or husband whose name is added to the title; named in the powers text;
• two witnesses who certify the principal’s signature or fingerprint.

If the agent is the spouse or represents the spouse, the note on the form requires adding consent that the agent acts both in his or her own name and on behalf of the other party.

• place and date (year in the Buddhist Era, พ.ศ.);
• land details from the โฉนด title deed;
• name, Thai ID number, age, race, nationality, parents’ names, address and phone of the principal and the agent;
• the spouse’s title (นาง/นาย) and name to be added to the title;
• signatures of the principal and two witnesses — by hand.

• the original title deed (โฉนดที่ดิน);
• copies of the principal’s ID card and house registration, signed by the principal;
• the marriage certificate (ทะเบียนสมรส) or other proof of marriage;
• the agent’s ID card or passport.

The exact list, fees and processing times are not stated on the form — check with the Land Office (สำนักงานที่ดิน) where the plot is registered. Under Thai law foreigners generally cannot own land, so whether a foreign spouse’s name can be added must be confirmed with the office in advance.

1. Open the chat on this page and describe the situation in any language: who owns the land, who will be the agent, whose name is being added.
2. Send photos of the title deed and ID cards or answer the questions — the assistant writes the data in Thai script and converts the year to พ.ศ.
3. Check the fields and download the PDF.
4. Print it, sign in front of two witnesses and hand it to the agent with the title deed and document copies.

Sample form of the Thai Department of Lands “หนังสือมอบอำนาจ — ลงชื่อคู่สมรส”: dol.go.th — power of attorney samples, file ลงชื่อคู่สมรส.pdf. Checked 2026-10-08. This is not legal advice.