Notary Public Certification: documents, steps and pitfalls
Notarial work in Thailand is performed by a Notarial Services Attorney registered with the Lawyers Council of Thailand — not a US-style notary. Each receiving authority defines the wording it will accept.
อ่านภาษาไทย: คู่มือรับรองเอกสารโดยโนตารี พับลิค
Documents to prepare
- Original passport or Thai ID card of every signatory
- The unsigned original document to be notarised
- Any certificate wording prescribed by the receiving party
- Company affidavit and seal when signing for a legal entity
- Power of attorney if the signatory cannot attend in person
- Written instruction from the receiving party on the required certification type
Step-by-step process
- 1
Confirm with the receiving party which notarial certificate is required (true copy, signature, or affidavit)
- 2
Send a scan for pre-check so names, spelling and dates match the passport exactly
- 3
Book an appointment to sign in the presence of the notarial attorney
- 4
Sign in person and present original identification
- 5
Receive the document with the certificate, seal and register entry number
- 6
If it will be used abroad, continue to MFA legalisation and embassy attestation as required
Cautions and common mistakes
- Signing before the appointment — the document must then be reprinted
- Even a one-letter mismatch with the passport spelling
- Presenting a copy where the receiving party requires the original
- Assuming Thai notarisation equals an apostille — they are separate steps
- Not allowing time for the follow-on MFA or embassy steps
Compare: do it yourself vs let us handle it
Consult before you start — advisers, not just processors
We do not simply process paperwork — we advise throughout the case. With more than 15 years of experience we review your documents before anything is filed, flag where rejection risk sits, and sequence the full chain end to end. If you would rather not run the process yourself, send the documents for a no-obligation review first.
Talk to our team