Ontario’s adult and child change of name applications each include a statutory declaration that must be signed in front of a commissioner. Bring your completed application to any Canada Notary office and we’ll commission it.
Ontario’s Office of the Registrar General handles legal name changes. To apply as an adult you must be at least 16, and you (or the child whose name is changing) must have lived in Ontario for 12 months in a row.
On the adult application, Part 6, the statutory declaration, must be signed in front of a commissioner. On the child application, only the applying parent’s statutory declaration in Part 6 is commissioned. Consent and notice forms are not. A guarantor also confirms your Ontario residence, but the guarantor’s signature does not need to be commissioned.
Get the current adult (007-11155) or child (007-11156) application from Ontario. Fill it in completely before your appointment.
Get the FormsFill in every section and have your guarantor complete their statement. Leave Part 6 unsigned.
Bring the application and your ID. You sign the statutory declaration in front of our commissioner and we commission it.
Mail or deliver it with the $137 fee and supporting documents, as the application instructs.
No. The guarantor completes and signs their own section beforehand. Their signature doesn’t need to be commissioned.
Ontario’s fee is $137. A child’s application filed with a parent’s costs $22 per child. Our commissioning fee is separate.
Ontario lists processing times of up to several months. Check ontario.ca for the current timeline.
Yes, we can review it with you so it isn’t sent back for missing information.
This page is general information, not legal advice. Canada Notary is not affiliated with the Government of Canada or the Government of Ontario. Requirements change, so always use the latest version of the form from the official source and confirm with ServiceOntario. Last reviewed October 2026.
Walk in or book at any of our Ontario offices. Bring the form unsigned and your photo ID, and we’ll take care of the rest. See our fee calculator for pricing.