Guide to the Ontario Business Registry

On October 19th, 2021, the Government of Ontario launched the Ontario Business Registry online service to provide businesses and not-for-profit corporations a 24/7 platform to use to update their registered business information.

Keeping your business information up to date

Previously, Ontario corporations were required to keep their business information up to date by filing the mandatory Annual Information Return together with their T2 Income Tax Return to the CRA.

After October 19th, 2021, the Annual Information Return must be filed separately from the T2 in the Ontario Business Registry. K&P recommends that you file your own information return directly using the registry, due to the simplicity of the filling and convenient 24/7 access to the online registry.

Additional services available in the Ontario Business Registry

The Ontario Business Registry offers additional services beyond filing the Annual Information Return. In the registry, you may also access a wide range of government services, including:

  • Amending your business name
  • Amalgamating your corporation with another corporation
  • Dissolving your corporation
  • Searching for the publicly available information of any other registered business in the Ontario Business Registry

It is the responsibility of the corporation to keep its information on the public record and beneficial ownership information accurate and up to date.

Filing dates for the Annual Information Return

Ordinarily, your Annual Information Return is due six months after your fiscal year-end. However, depending on your corporation’s year-end and the timing of your filing, your filing deadlines will vary.

Year-end Date

Annual Information Return Due Date

Filing Location

January 1 – May 14, 2021

Required – Six months after year-end

CRA, together with your T2

May 15 – October 18, 2021

Exempt – No Annual Information Return required for 2021


October 19 2021 – Present

Required – Six months after year-end

Ontario Business Registry

Accessing your profile in the Ontario Business Registry

If your corporation was registered or incorporated before the launch of the Ontario Business Registry on October 19th 2021, then the Ontario Ministry has already created your profile in the registry and migrated any business information you previously submitted to the CRA.

To access your profile in the Ontario Business Registry, please follow these two steps:

1. Acquire a Company Key – The confidential passcode for your corporation

To acquire a Company Key, follow this link to visit Service Ontario’s business search webpage.

On this webpage, enter your business name in the search bar and select your corporation. Then, provide your corporation’s contact information in the response fields and click “Submit”.

Your Company Key will be sent to the official email address provided in your previous Annual Information Returns. If you do not have an official email address, it will be mailed to your registered or head office address.

2. Sign up and log in to One-Key – The login portal for the Ontario Business Registry

Once you have received your Company Key, follow this link to visit Service Ontario’s login portal.

On this webpage, you are required to create a One-key account. Follow the prompts to create your account, and when instructed, enter your Company Key. Upon entering your Company Key, you will have full access to your profile in the Ontario Business Registry using this same webpage.

How K&P can assist you

The requirement to file the Annual Information Return with the Government of Ontario has become more onerous for the taxpayer. This will require registering for an account with the Ontario Business Registry as well as setting up annual reminders to ensure that you continue to maintain compliance for your corporation. If you have any questions, feel free to contact us for more information.