You’ll need the following information to register your business with us:
Company information
- legal name of company and trade name(s)
- Canada Revenue Agency (CRA) business number
- mailing, email and website addresses
- phone number
- account number of any prior registered accounts with the WSIB
- name, location and phone number for a contact person who deals with payroll records (if different from your primary location)
- bank name
- description of your business activity (i.e. what is the nature of your business)
- a description of any additional business activities, if you have more than one
- payroll Information for any other business activities you maintain
- names of any associated businesses, plus their WSIB account numbers, if possible
Owner/executive details
- names, addresses, birthdates and official titles of directors or owners of the company (and proof of earnings if you'll be requesting optional insurance)
Information about your employees
- date the first employee was hired
- number of employees
Payroll information
You'll need to estimate your payroll information, which is the insurable earnings you'll pay your employees for the current year. This information is reported on your employees' pay stubs or T4 slips. Please report the following items from the T4: gross earnings, deductions for income tax, CPP and employment insurance. Insurable earnings can also include earnings not reported on a T4 such as room and board, bonuses and commissions.
If you own or operate a business in construction and need details about estimating your insurable earnings, read about expanded compulsory coverage in the construction industry.
Insurable earnings are subject to a maximum amount for each employee. See this year's annual maximum.
Who you're responsible for insuring
You're responsible for insuring the following individuals:
- anyone you employ in your business under a contract of service, including family members
- full-time, part-time, seasonal or temporary employees, domestic employees, students, apprentices, learners and training participants
- yourself – if you're an independent operator, sole proprietor, partner or executive officer in the construction industry
- please see information about expanded compulsory coverage in the construction industry for exceptions
You can find more information on independent operators for details and exceptions on who must be insured.