Notice Period in Ontario: ESA Minimums and Common-Law Reasonable Notice

If your employment in Ontario is ending, or you are trying to work out what your employer owes you, the notice period is where it starts. Ontario has two separate notice systems that can apply when an employer terminates an employee without cause: the statutory minimum notice set by the Employment Standards Act, 2000 (ESA), and common-law reasonable notice, which the courts calculate and which is often far higher. The one that applies to you depends on your employment contract.

This article explains what a notice period is in Ontario, the ESA statutory minimum notice, how common-law reasonable notice is calculated and how long it typically runs, when a contract can limit your notice, the difference between working notice and pay in lieu, and whether you have to give notice when you resign.

What is a notice period?

A notice period is the advance warning an employer must give before ending employment without cause, or the pay it must provide instead. The employer can give working notice, where you keep working and being paid through the period, or pay in lieu of notice, where employment ends immediately and you are paid for the period instead. In Ontario, the length of that period is set by one of two frameworks: the ESA statutory minimum, or common-law reasonable notice where no valid contract limits it.

Statutory notice period in Ontario (ESA)

The ESA sets the minimum notice of termination, or pay in lieu, for most employees dismissed without cause. These minimums cannot be contracted below, and they must be provided regardless of what a contract says.

Two points matter here. First, benefits must continue throughout the statutory notice period, whether you are given working notice or pay in lieu. Second, statutory severance pay is a separate entitlement, of up to 26 weeks, for employees with five or more years of service where the employer's payroll is $2.5 million or more, or 50 or more employees are severed in a mass termination. The ESA notice minimum is the floor, not the ceiling. For the employer-side compliance view, see our article on the statutory notice period in Ontario, and for how the pay is calculated, our article on termination pay in Ontario.

Common-law reasonable notice

Where no valid termination clause limits your entitlement, the common law applies, and reasonable notice is frequently many times higher than the ESA minimum. There is no fixed cap. Ontario courts calculate reasonable notice using the framework from Bardal v. Globe and Mail Ltd., weighing four factors together rather than applying a formula.

You will sometimes hear a rule of thumb of about one month of notice per year of service. It is only a rough starting point, not a rule courts follow. The actual figure turns on all four Bardal factors together, and there is a general upper range of around 24 months absent exceptional circumstances. For a deeper look at how the factors are weighed, see our article on the Bardal factors.

Typical reasonable notice ranges in Ontario

These are general ranges, not guarantees. Two employees with identical service can be owed very different amounts once age, seniority, and the job market are considered. You can estimate your own likely range with our severance pay calculator.

When a termination clause limits your notice

An employer can limit your notice to the ESA minimum, but only where your contract contains a valid, enforceable termination clause that clearly complies with the ESA, is not ambiguous, and does not conflict with ESA rights anywhere in the agreement. Ontario courts have struck down many termination clauses for failing this standard. A clause that violates the ESA in any part, even a provision you were never terminated under, can void the entire termination framework and default your entitlement to common-law reasonable notice. Our article on Dufault v. Ignace shows how one defective clause can void a whole termination framework. Do not assume the amount you were offered is the limit of what you are owed without having the contract reviewed.

Notice of termination: working notice vs pay in lieu

Notice can be given in three ways: working notice, where you continue to be employed and paid through the period; pay in lieu of notice, where employment ends immediately and you are paid for the period as a lump sum or salary continuance; or a combination of both. The total value of your entitlement is the same whichever method is used, and your benefits must continue through the statutory notice period regardless.

Do you have to give notice when you resign in Ontario?

This is a common point of confusion. The notice periods above are what an employer owes an employee on termination. They are not what an employee must give when resigning. The ESA does not require employees to give notice of resignation, and there is no general legal rule that you must give two weeks. Your employment contract may impose a notice obligation, and at common law a senior employee may owe reasonable notice of resignation, but an employer can only recover damages for short notice if it proves actual financial harm, which is rare. For more, see our article on resignations and employment law.

Frequently asked questions about notice periods in Ontario

How Achkar Law helps employees

Achkar Law advises employees across Ontario on notice entitlements after a termination without cause. We review your employment contract and its termination clause, assess whether you are owed only the ESA minimum or a larger common-law amount, and negotiate before you sign. Learn more about termination without cause and severance pay in Ontario.

This article is general information about Ontario employment law and is not legal advice. Statutory figures are current as of July 2026. An employment lawyer can advise on your specific situation.