Notice: As of June 9, 2025, the Small Claims Court E-Filing Service will no longer be available. All plaintiff’s claims and other Small Claims Court documents must be submitted for online filing and/or issuance through the Small Claims Court Submissions Online portal (SCCSO) on Justice Services Online (JSO).

Company Key Guide: If this is your first time accessing your Ontario Business Registry account, a Company Key is required. Please use this guide to request a Company Key.

Effective February 1, 2025, the Ministry will be expanding the list of Service Providers. If you plan to engage the services of a Service Provider or intermediary, provide them with the Company Key. If you have not obtained the Company Key, please use this guide to request one.

For further details, please consult the Company Key notice.

Resources:
OBR and Canada Revenue Agency (CRA) System Integrations: data exchange details

Federal Business Number: To confirm or request a new Federal Business Number, contact the Canada Revenue Agency’s Business Number Enquiry Line at 1-800-959-5525. If your Federal Business Number has changed and the OBR is not up to date, contact the ServiceOntario Customer Support Centre at 1-800-361-3223.