Commissioner of Oaths


The City of Guelph’s Commissioner of Oaths can take affidavits or declarations by witnessing you swear or affirm that what is in a document is true. If your document requires the signature of a Notary Public, then you will need to contact a lawyer or a Notary.

For more information about commissioner of oath and notary public services, visit the Province of Ontario’s website.

Before you begin

The following applies to the City’s commissioner of oaths services:

  • Each person making a declaration must:
    • Be present at the commissioning appointment
    • Show current, government-issued photo identification.
  • Documents must only be signed in front of the Commissioner.


  • Up to two documents is $39.55 (the fee may increase if there are more documents)
  • Foreign pension document is $16.95

Book an appointment

Commissioner of oaths appointments are available on Thursdays and Fridays at City Hall, 1 Carden Street, Guelph.

Book an appointment

Need help?

If you have questions about commissioner of oaths services, please contact us.

519-822-1260 extension 2117
[email protected]