Deavo

Maximum insurable earnings (workers’ compensation)

In Ontario, maximum insurable earnings are the yearly ceiling the WSIB sets on how much of one worker’s earnings counts toward a workers’ compensation premium. The WSIB says premiums are not paid on earnings above that annual maximum.

A buyer budgeting workers’ compensation premiums meets this ceiling when reading the seller’s payroll. The WSIB says only insurable earnings, subject to the maximum set each year, go into the premium calculation. It says the Workplace Safety and Insurance Act, 1997 limits a worker’s insurable earnings for premium calculation to an annual maximum, and that the WSIB’s annual maximum takes effect each January 1.

How the WSIB describes it

  • Excess earnings are any earnings above the annual maximum for an individual worker, and are not insurable.
  • The WSIB says it sets the annual maximum based on the average industrial wage for Ontario.
  • Once a worker’s earnings reach the maximum, the WSIB says the employer does not need to report the excess.
  • The WSIB’s policy says the Act sets a separate annual maximum average earnings for benefits, and in years where the two differ, premiums follow the maximum insurable earnings.

What to ask

Ask for payroll by worker, and look up the current year’s published amount rather than relying on an earlier year’s. See the WSIB clearance certificate and workers’ compensation assessments. This entry covers Ontario only; check the rules where you are.

Sources

This definition is checked against primary sources. Links were last confirmed on the dates shown.

  1. 01
    Workplace Safety and Insurance BoardRegulator
    Determining Insurable Earnings
    wsib.ca·Checked Oct 25, 2026
  2. 02
    Workplace Safety and Insurance BoardRegulator
    How to calculate your premium and insurable earnings
    wsib.ca·Checked Oct 25, 2026

Deavo is an advertising and listings platform, not a brokerage, law firm or valuation firm. This page is general information, not legal, tax, accounting or valuation advice, and rules differ by province. Confirm anything you rely on with a qualified professional before you act on it.

Ready to put this to use?

Browse Canadian businesses for sale, or read the answer to a related question.