- A probationary period is a defined trial window at the start of employment during which both parties can assess the fit.
- The ESA provides that an employee must complete a probationary period (as of writing: three months of continuous employment) before they are entitled to statutory notice of termination…
- " This is a critical misunderstanding many employers have: a contractual probationary period longer than three months does not extend the ESA's notice-free window.
The concept of a probationary period is familiar to every employer, but the legal reality in Ontario is frequently misunderstood. Many business owners believe a probationary period means they can dismiss a new employee at any time, for any reason, with no obligation whatsoever. That is not quite right.
Understanding what a probationary period actually does — and does not — protect you from is essential before you hire your first employee and long before you decide to let someone go.
What a Probationary Period Actually Is
A probationary period is a defined trial window at the start of employment during which both parties can assess the fit. The employer gets to evaluate performance, reliability, and cultural alignment; the employee learns whether the role meets their expectations.
In legal terms, a probationary period has two important effects in Ontario:
- It eliminates the ESA notice obligation for early departures. Under the Employment Standards Act, 2000, an employee who has not yet completed three months of employment is not entitled to notice of termination or termination pay (as of writing — verify the current probation period in the ESA). This is the main legal protection a properly structured probationary period gives you.
- It may affect the common-law notice obligation. If the employment contract includes a valid probationary clause, it can also limit or eliminate the common-law duty to give reasonable notice during the probationary window — but only if the clause is properly drafted.
What a probationary period does not do:
- It does not let you dismiss an employee for discriminatory reasons (Human Rights Code still applies from day one)
- It does not let you dismiss an employee who has complained about an OHSA violation or exercised an ESA right
- It does not eliminate the duty to act in good faith
The ESA and the Three-Month Rule
The ESA provides that an employee must complete a probationary period (as of writing: three months of continuous employment) before they are entitled to statutory notice of termination or termination pay on dismissal.
A few important nuances:
- The three-month clock runs from the first day of work, regardless of what your contract says. A contract cannot extend the ESA's probationary period beyond what the statute sets.
- The employee must have actually worked for three months. Periods of layoff, unpaid leave, or absence may affect the calculation — verify the rules with legal advice.
- Even within the probationary period, an employee is entitled to other ESA rights: minimum wage, overtime, vacation pay accrual, and statutory leave protections all begin immediately.
What Happens After Three Months?
Once an employee has worked past the ESA probationary period, the statutory notice entitlement kicks in — even if your contract describes them as still being "on probation." This is a critical misunderstanding many employers have: a contractual probationary period longer than three months does not extend the ESA's notice-free window. The ESA sets the floor, and you cannot reduce it by contract.
After three months, the employee is also more protected in common law. Courts weigh the length of service (among other factors) in assessing reasonable notice — so the longer the employee stays past probation, the more notice they are typically owed.
How to Use the Probationary Period Effectively
Put It in Writing
The offer letter or employment contract should clearly define:
- The length of the probationary period
- That during probation, the employer may terminate the relationship as permitted by applicable law
- That the probationary period does not guarantee continued employment
Do not assume a verbal understanding is sufficient. Without written terms, the probationary period is not clearly established.
Evaluate Actively and Document
Use the probationary period for its intended purpose. Set clear performance expectations in writing early (ideally in the offer letter or in a follow-up email within the first week). Provide feedback during the period — not just at the end.
If you decide to dismiss during probation, your documentation of concerns will matter. Even if no legal notice is owed under the ESA, an employee who claims the dismissal was discriminatory or retaliatory will ask: what performance issues were raised? When? By whom?
Do Not Wait Until Day 90
If you have serious concerns about an employee during probation, act before the three-month mark. A dismissal on day 91 is subject to the ESA notice obligation. A dismissal on day 88 is not (as of writing). The difference can matter.
Extending Probation? Be Careful
Some contracts attempt to extend a probationary period — for example, stating that if performance concerns arise, the period can be extended by 30 additional days. Courts have taken differing views on whether such extensions are enforceable. If you extend a probationary period with an employee who has already passed the ESA's three-month mark, you cannot strip back their ESA entitlement — that window has already opened.
Dismissal During Probation: What Good Practice Looks Like
Even though you may owe no ESA notice during the first three months, dismissal should still be:
- Done respectfully, in person or by call where possible
- Accompanied by payment of all wages, vacation pay accrued, and any outstanding statutory holiday pay to the date of termination
- Based on documented reasons (in case a human rights or ESA complaint follows)
Never dismiss a probationary employee in a way that could be seen as related to a protected characteristic, a pregnancy announcement, or an ESA leave request. The ESA's anti-reprisal provisions apply from the first day of work, not after probation ends.
Frequently asked questions
Can I set a six-month probationary period in the contract?
You can define a longer period for internal assessment purposes, but for ESA notice obligations, the statutory minimum kicks in after three months regardless. A six-month contractual probation may have some effect on common-law notice during that window if properly drafted — but it will not prevent the ESA clock from starting at month three.
What if I want to extend the employee's probation because they were sick?
Absences may affect the continuity of employment calculation in certain circumstances. Get legal advice before extending probation based on absence — there are human rights and ESA leave considerations.
Is there any notice owed at all if I dismiss in the first month?
Under the ESA, no statutory notice is owed during the probationary period (as of writing). Common-law notice may still theoretically be owed unless your contract explicitly addresses this — which is why a properly drafted termination clause matters even for probationary periods.
What happens if I promised to keep the employee for at least six months?
A verbal or written promise to employ someone for a defined period can create a fixed-term obligation. Courts have awarded damages equal to the remaining term when employers ended fixed-term arrangements early. Avoid making specific duration promises unless you intend to be bound by them.
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