Affidavits and Statutory Declarations in Thailand for Use Abroad

An affidavit is a written statement sworn or affirmed before an authorised person as true. It is used when no official document proves the fact directly — for example different name spellings across documents, or a relationship. The person making it is responsible for its truth, and some countries prescribe their own form or who may take it.
We do not publish company service prices. Ask our team for a case-specific quotation; official fees remain those announced by the authority on the filing date.
Typical uses
Affidavits explain and connect information that official records do not cover. They do not correct official records; if a record is wrong, fix it at source.
- One and the same person
- Single or divorced status
- Relationship or cohabitation
- Lost documents
- Financial support
A word of caution
False statements carry legal penalties. We draft clearly from facts you can support and will not write anything overstated.
How we work, step by step
- Define the purpose. What must be proved, and is there a set form?
- Draft. In the language required, referring to existing documents.
- Confirm with you. Every statement must be true.
- Swear and sign. Before the authorised certifier.
- Certify further and deliver. MFA or embassy as the destination requires.
Questions we are asked most
Can it replace a birth or marriage certificate?
Generally no. It supports official records where they fall short.
Do you publish prices or guarantee the outcome?
No. We quote after looking at your documents and situation, and every decision is made by the Thai authority concerned. We will tell you plainly when we think a plan is weak.
Official sources
Reviewed 9 October 2026. These links are starting points; the receiving authority decides the current case-specific requirements.
- Lawyers Council of Thailand — notarial services attorneys
- Department of Consular Affairs, Ministry of Foreign Affairs
Other document services
Request a quotation from our documents team
We review your situation and documents first. Decisions are made by the relevant embassy, immigration office or receiving authority, not by our team.