Business activity change

My business has a website

You can complete the business activity change request form if your business has a website and you think you’re being classified improperly, your business activity has changed, or you’d like to add or remove a classification to your account.

Business activity change request

My business doesn’t have a website

If you don't have a website, please email your request for a reclassification to employeraccounts@wsib.on.ca, along with the following:

account number in the subject line
a detailed description of your business activity
the date you began performing the business activity
three to five invoices supporting your business activity
contracts
promotional materials and/or purchase orders

We understand that not all materials may be available, please provide as much information as possible to confirm your business activity.

If you’re requesting to add a new classification to your account, you’ll also need to confirm that your business activities are separate and distinct from each other and are not performed as part of the same contract.

If you have multiple business activities and want to remove one, you can email us to advise which business activity you would like removed from the account and the date you ceased performing it.

Ancillary business activity

We won’t separately classify a business’ operations that are considered ancillary (i.e., incidental to the employers business activity). More information and examples can be found in our Classification Structure policy under the ancillary operations section.

Business activity change request form

indicates required field

Account number

Legal name/trade name

Requester name

Requester position

Authorization

I am authorized to make requests for this account.

If you are not currently authorized to make requests for this account, you can complete the authorization for access to business account information form.

Phone number

Email address

Website

Date the business began performing the business activity

I am looking to:

Estimated insurable earnings for new business activity

If you’re adding an additional NAICS code to your account, are you able to segregate** the insurable earnings?

Yes

^** The proper segregation of earnings must be based on the direct labour time spent on each business activity and must be verifiable through earnings records.

for employees who work in one business activity, all earnings are assigned to the NAICS code for that business activity
for employees who divide their time among two or more business activities, you must use your segregated records to assign the earnings to the appropriate NAICS codes according to the direct labour time spent in each NAICS code

Please provide a detailed description of your business activity and any additional information that can help us confirm your business activity (for example, links to social media, etc.).

Next steps

Once we receive and review the information, we’ll send you a decision letter by mail letting you know if any changes have been made and any rate impacts based on the changes on your account.