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Did you know that WSIB coverage isn’t mandatory for every business in Ontario? 

The Workplace Safety and Insurance Act (WSIA) outlines which industries need to have coverage and which industries don’t. Businesses that do need to have WSIB coverage pay premiums in exchange for workplace insurance. 

This is how a business’ premiums are calculated: 

To calculate the premium amount you report and pay to WSIB: multiply insurable earnings (total wages) by the designated rate (based on the type of business). Divide the result by 100.


The WSIB uses those premiums to pay the benefit and the administration costs of our collective liability insurance – despite being a government agency, we don’t receive any funding from taxes. 

For anyone new to the WSIB, we’ve put together some resources in this section that will help you figure out: