Step 1 | Step 2 | Step 3 | Step 4 2. Information You’ll Need to Register The first step in registering your company with the WSIB is gathering the necessary information. You should have the following information on hand when you call your local WSIB office or complete a registration form: Company Information Mailing address Phone and fax numbers Organization address Account number of any prior registered accounts with WSIB Legal name of company and trade name(s) Copy of Articles of Incorporation or business registration form Language Preference Revenue Canada Number and/or GST number Employer Health Tax number A description of your business activity and proof When you register with the WSIB, you will be asked to describe the product you produce, the goods you sell or the services you provide. Based on this information, the WSIB will determine your rate group. Businesses in a rate group share the same premium rate. Bank name and branch Address, phone & fax number of each operating location Name, Location and Phone number for Contact Person for Payroll Records [if different from work location.] Dates workers first employed The number of workers The estimated insurable earnings for the current year Annual insurable earnings are the amounts usually reported on your workers' pay or wage stubs and on T4 slips as gross earnings. These amounts include 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. The maximum amount to include for each worker is $77,600 for premiums in 2010. Name and Address of any associated employers/contractors, plus any account numbers, if possible If more than one business activity, which is the predominant payroll Do you maintain separate payroll records for each business activity? Any associated employers Name of competitors to verify accuracy of classification Website/e-mail address Owner/Executive Details Name of Directors or Owner of the Company Address of the Director/Owner Birthdate of Director/Owner Official Business Title Proof of earnings (if requesting optional insurance) Download a WSIB Registration Form. Registration hotline: 1-866-734-9742 Step 1 | Step 2 | Step 3 | Step 4