Authentication of Documents

Authentication of Documents

9 Jul 2020

Documents Required:

1. A completed Application for Legalization form requesting authentication of your documents, or an official letter from your office.

2. Documents to be authenticated.  Please note that before you submit the documents to be authenticated by the Embassy, the documents must be:

  • Notarized by a Notary Public.
  • Notarized documents must then be authenticated by the Department of Foreign Affairs and International Trade (DFAIT).  Their contact information is as follows:

Documents Authentication Officer
Authentication & Service of Documents Section
Legal Affairs Bureau
Lester B. Pearson Tower C-7
Department of Foreign Affairs and International Trade
125 Sussex Drive
Ottawa, Ontario K1G OA2
Tel. (613) 995-0119 or 613-944-4000

  • If you reside in Quebec and would like to have your documents authenticated, follow the same procedures as above.  However, you are not required to go through DFAIT, but through Chambres des notaries du Quebec instead.  Their contact information is as follows:

1801, avenue McGill College, bureau 600
Montréal QC H3A 0A7
Tel. (514) 879-1793


  • Applying in person:
    • Open 09.15 - 11.45.00 hrs.
    • Monday - Friday (except public holidays)
  • Applying by mail :
    • Mailing address:
    • The Royal Thai Embassy
    • 180 Island Park Drive,
    • Ottawa, Ontario, K1Y 0A2
  • Authentication Fee
    • The fee is CAD 20.00 per stamp.

If application is submitted in person, visa processing fees are payable in money order only made payable to “The Royal Thai Embassy”.

If application is submitted by mail, please pay by money order only.   Personal cheques, company cheques, debit cards and credit cards are not accepted.   You must also provide the Embassy with a prepaid express post envelop for the return of your documents.

Processing Time

3 - 5 working days