WSIB for Ontario employers, explained
Most Ontario employers must register with the WSIB for workplace-injury coverage and report payroll to calculate premiums.
The Workplace Safety and Insurance Board (WSIB) provides workplace-injury coverage in Ontario. Most employers are required to register, report their payroll, and pay premiums based on their industry classification.
What you have to do
Register when you take on workers, report insurable earnings on schedule, and keep payroll records that support your premium filings. Some businesses also need clearance certificates to work with other contractors.
Why clean records matter
WSIB premium reconciliations and clearance requests are painless when payroll is accurate all year, and painful when it isn't. Current books mean your reporting lines up the first time.
This is general information, not tax advice for your situation. Book a call and a Canadian accountant will give you the answer for your business.
Common questions
Does every Ontario business need WSIB coverage?
Most employers with workers do, though there are exceptions by industry and structure. Confirm your obligation for your situation.
What is a clearance certificate?
It's WSIB confirmation that a business's premiums are up to date, often required before one contractor pays another. Clean records make it routine.