Verbal Job Offers in Ontario: Why Employers Still Need a Written Contract

A hiring manager makes an offer over the phone, the candidate says yes on the spot, and everyone moves forward with a handshake understanding. It happens constantly — and it's a habit that quietly costs Ontario employers more than they realize.

A verbal job offer is generally legally binding in Ontario. That's not a loophole in the employer's favour; it's exactly the problem. Once a verbal offer is accepted, you have a contract — just not one with any of the protections a written contract could have given you.

Is a Verbal Job Offer Legally Binding?

Yes, generally. Ontario contract law does not require most business agreements — including a job offer and its acceptance — to be in writing to be enforceable. A clear verbal offer, accepted by the candidate, can form a binding employment contract the moment they say yes.

The practical risk with a verbal-only agreement isn't that it's unenforceable — it's that nobody can prove exactly what was agreed to. Was the salary discussed a base figure or inclusive of bonus? Was the start date firm or approximate? Was there ever a mention of a probationary period? Six months later, both sides may remember the conversation differently, and there's no document to settle it.

What a Verbal Offer Can't Do: Limit Termination Entitlements

This is the piece employers most often miss, and it's the most expensive one.

Absent an enforceable written contract that says otherwise, an employee who is later let go without cause is entitled to common-law reasonable notice — a fact-specific, case-by-case standard set by a court, based on factors like age, position, length of service, and how easily comparable work is available. Common-law notice is typically substantially greater than the statutory minimum under the Employment Standards Act, 2000.

A properly drafted written contract can lawfully limit an employee's termination entitlement to something closer to the ESA minimum — but only if the termination clause is clearly worded and meets the ESA's minimum standards; a clause that tries to contract below those standards is generally void. A verbal offer never gets you this protection at all, because there is no clause to enforce. Every employee hired on a handshake is, by default, exposed to the open-ended common-law standard if things don't work out.

Common Disputes That Arise from Verbal-Only Offers

• Compensation disagreements — bonus structure, commission terms, or benefits that were "mentioned" but never defined
• Start date and notice period confusion — especially when a candidate is still working out notice with a previous employer
• Job title and duties drift — what was described verbally doesn't match what the role becomes in practice
• No agreed probationary period — leaving the employer without a clear early-review mechanism
• No termination clause at all — the single biggest cost driver if the employment relationship doesn't work out

What a Written Employment Contract Should Cover

• [ ] Job title, reporting relationship, and core duties
• [ ] Compensation — base pay, bonus/commission structure, and benefits
• [ ] Start date and any probationary period
• [ ] Hours of work and vacation entitlement
• [ ] A clearly drafted, ESA-compliant termination clause
• [ ] Confidentiality and, where appropriate, restrictive covenants
• [ ] Governing law and any conditions the offer depends on (e.g., a background check)

Get It Signed Before the Start Date

The written contract needs to be signed before the employee starts work, not on day one or sometime in the first week. Once someone has already begun performing the job, asking them to sign new or materially different terms afterward raises a separate legal problem: changing an existing employment relationship generally requires something of value flowing back to the employee in exchange, simply continuing to show up for work isn't enough on its own.

The practical sequence that avoids both problems: extend the offer in writing, have it signed and returned, and only then confirm the start date.

Frequently asked questions