Offer Letter vs. Employment Contract: Why the Distinction Matters
Many Ontario employers use the terms interchangeably. They are not the same thing, and the difference has real financial consequences.
| Feature | Job Offer Letter | Employment Contract |
|---|---|---|
| Purpose | Confirms that a job offer is being made and states basic terms | Creates the legal framework for the employment relationship |
| Length | Typically 1–2 pages | Typically 5–15+ pages |
| Termination clause | Does not contain one (or should not) | Contains a reviewed termination clause that defines notice obligations |
| Relationship to ESA | Silent on most ESA obligations | Must comply with ESA floor; cannot contract below ESA minimums |
| What happens if it’s your only document | Without a full employment contract, you have no termination clause — the employee gets common law notice, which can be 12–24+ months | Limits termination exposure to a defined, legally reviewed amount |
| Sequential use | Sent first, often contingent on conditions (reference checks, background check) | Sent after offer is accepted — must be signed before first day of work |
The practical risk: a candidate accepts your offer letter and starts on Day 1 without ever signing an employment contract. At that point, there is no valid termination clause. When you eventually part ways with that employee, you owe them common law reasonable notice — which for a senior employee with years of service could mean 12–24 months of salary, well beyond the ESA floor. This is the most expensive offer letter mistake Ontario employers make.
Before You Extend an Offer: 2026 Obligations
Before you extend a job offer — or even post the role publicly — there are Ontario compliance obligations that apply at the recruiting stage.
Pay Transparency Act (Effective January 1, 2026)
Ontario employers with 25 or more employees must include a compensation range in any publicly advertised job posting. The range cannot span more than $50,000. By the time you’re extending an offer letter, the candidate has already seen the range — the offer letter should confirm a salary within that posted range. Offering below the posted range (without a legitimate explanation) creates legal and reputational risk.
Additional Pay Transparency obligations that precede an offer:
- Job postings cannot require “Canadian experience” — this prohibition applies to all Ontario employers regardless of size
- If you used AI-assisted screening tools (résumé screening software, video analysis, chatbots), you must have disclosed this in the posting
- If the candidate was unsuccessful, you must notify them within 45 days of the posting closing
Human Rights Code Compliance in the Offer Process
Before extending an offer, confirm that your selection process was free of any prohibited ground of discrimination. You may not:
- Make an offer conditional on the candidate’s age, disability status, pregnancy plans, family status, or any other protected ground
- Ask about salary history — Ontario’s salary history ban has been in place since November 2018
- Withdraw an offer because of a ground that was discovered during background or reference checks (e.g., a disability disclosed at the reference stage)
Background and Reference Checks
If you conduct background checks (criminal record, credit, education verification), confirm that:
- The candidate has provided written consent before the check is run
- The check is relevant to the role (criminal record checks should be limited to roles where it is a genuine occupational requirement)
- Under the Human Rights Code, a criminal record is protected — you cannot automatically disqualify candidates based on a record unrelated to the role
What to Include in a Job Offer Letter
A job offer letter should state enough to allow the candidate to accept the role with confidence — without making commitments that need to be contradicted in the full employment contract.
| Element | What to Include | Drafting Note |
|---|---|---|
| Job title and role summary | Title, department, reporting structure | Avoid overspecifying duties — use “and related duties” language to preserve flexibility |
| Start date | Specific start date (or a formula: “the first business day after conditions are satisfied”) | ESA continuous service begins from this date — accuracy matters for future termination calculations |
| Compensation | Annual salary or hourly rate; pay frequency | For variable pay, state the structure without locking in a guaranteed amount the full employment contract will need to qualify |
| Work location and schedule | Primary work location; hybrid or remote arrangement if applicable; normal hours | If hybrid, state that the arrangement is subject to business needs — lock-in creates constructive dismissal risk if changed later |
| Benefits summary | Brief reference (health/dental/life/EAP); waiting period if any | Describe generally and note that details are governed by the benefit plan documents — avoids contractual commitments if plans change |
| Vacation entitlement | Number of vacation weeks and/or vacation pay percentage | ESA minimum is 2 weeks / 4% (5 years+: 3 weeks / 6%) — if offering above minimum, state as a policy entitlement not a contractual right |
| Conditions of the offer | Reference check, background check, right to work verification, credential verification if applicable | List specific conditions — a vague “subject to satisfactory checks” creates disputes about what was unsatisfactory |
| Reference to employment contract | State that a full employment contract will be provided and must be signed prior to the start date | This is the single most important element — it creates the expectation that more terms are coming and preserves the contract’s validity |
| Offer expiry date | A deadline for accepting the offer (typically 5–7 business days) | Prevents candidates from holding an offer while shopping for competing offers |
What NOT to Include in the Offer Letter
The offer letter is not the place to address legal terms that belong in the employment contract. Including them in the offer letter creates risk: you may not have taken independent legal advice on them yet, the candidate may not have had a fair opportunity to review them, and they may not be enforceable in an offer letter format.
| What to Leave Out of the Offer Letter | Where It Belongs Instead | Why |
|---|---|---|
| Termination clause (e.g., “employment may be terminated with X weeks notice”) | Signed employment contract only | Under the Waksdale decision (ONCA 2020), a termination clause in an offer letter may not be enforceable if not properly reviewed; the full employment contract is the correct home |
| Non-compete clause | Not in either document for non-executives — void under Working for Workers Act 2021 | Non-competes for non-executive employees are void under Ontario law since October 2021 |
| Specific bonus formulas or guaranteed bonus amounts | Employment contract with properly worded discretionary bonus language | A bonus “guaranteed” in an offer letter becomes a contractual obligation — even if business conditions change |
| Detailed commission structures | Employment contract + separate commission plan | Commission plans change; building them into offer letters creates frozen contractual obligations |
| Confidentiality and IP assignment terms | Employment contract | These provisions are legally significant and require proper independent consideration to be enforceable |
| Language suggesting the employment is “permanent” or guaranteed | Leave out entirely | No Ontario employment is permanent — this language creates expectations inconsistent with the employer’s legal right to terminate on reasonable notice |
The Sign-Before-Day-One Rule
This is the single most important procedural requirement for employment contracts in Ontario, and the one most often violated.
For a termination clause (and other restrictive terms) to be enforceable, the employee must sign the employment contract before their first day of work. Signing after Day 1 — even on Day 1 — creates an enforceability problem because there is no “fresh consideration”: once the employee has already started working, signing the contract is not supported by anything new of value.
The practical requirement:
- Send the full employment contract to the candidate before they start work
- Give the candidate a reasonable amount of time to review it — 5 to 7 business days at minimum
- Encourage them to seek independent legal advice (including this in the contract is considered a best practice)
- Obtain a signed copy before the start date — not on the morning of Day 1
If a candidate starts work before signing a contract, you have created a common law employment relationship without any agreed termination clause. The only way to fix this later is to provide fresh consideration (a raise, a signing bonus, a promotion) in exchange for the employee signing the new agreement — and even then, the old relationship’s terms may inform the interpretation.
Probationary Periods in Offer Letters
If you intend to include a probationary period, state it in both the offer letter and the employment contract. There are two key things to understand:
What Probation Means Under the ESA
The ESA does not use the word “probation.” What it does is create a threshold: employees who have been continuously employed for fewer than 3 months are not entitled to ESA termination notice. This is the practical effect of a probationary period — not that HR law treats the employee differently, but that the notice obligation hasn’t yet attached.
A probationary clause in a contract can extend this protection somewhat beyond 3 months only if it is clearly worded and signed before Day 1. It does not exempt the employer from all obligations — the Human Rights Code, OHSA, pay obligations, vacation pay, and all other ESA entitlements apply from Day 1, regardless of probation.
Drafting Probation Language in the Offer Letter
Keep it simple in the offer letter: state the duration and that performance will be assessed during this period. The full contractual language (what dismissal during probation means, what the employer may do) belongs in the employment contract, not the offer letter.
Example offer letter language: “This offer is contingent upon the successful completion of a [90-day] probationary period, during which your suitability for the role will be assessed. Further details are contained in the Employment Agreement.”
Job Offer Letter Template (Ontario, 2026)
[Candidate Name]
[Candidate Address — if mailing; otherwise by email]
Dear [Candidate Name],
We are pleased to offer you the position of [Job Title] with [Company Name], reporting to [Manager Name/Title]. We were impressed with your background and believe you will make an excellent contribution to our team.
POSITION: [Job Title], [Department]
START DATE: [Date], subject to the conditions noted below
WORK LOCATION: [Office address / hybrid — e.g., “primarily remote with in-office requirements as needed”]
HOURS: [e.g., Monday to Friday, 9:00 a.m. to 5:00 p.m., with flexibility as the role requires]
COMPENSATION: Your starting salary will be $[amount] per year [or $[rate] per hour], paid [bi-weekly/semi-monthly].
BENEFITS: Subject to the applicable waiting period, you will be eligible to participate in our group benefits plan, which includes [health, dental, life insurance, and EAP]. Full details are contained in the benefits plan documents, which govern in the event of any inconsistency.
VACATION: You will be entitled to [X weeks] of vacation per year, accruing in accordance with the Employment Standards Act, 2000 and company policy.
CONDITIONS: This offer is conditional on:
1. Satisfactory completion of reference checks with [X] references;
2. [Background check — if applicable];
3. Confirmation of your legal right to work in Canada; and
4. Execution of the Company’s standard Employment Agreement.
PROBATIONARY PERIOD: This offer is contingent upon the successful completion of a [90-day] probationary period. Further details are contained in the Employment Agreement.
EMPLOYMENT AGREEMENT: A formal Employment Agreement will be provided to you prior to your start date and must be executed before your first day of work. That Agreement will govern the terms of your employment and supersedes any representations made during the recruitment process.
This offer is open for acceptance until [Date — 5–7 business days from offer]. To accept, please sign and return this letter by that date.
We look forward to welcoming you to [Company Name].
[Authorized Signatory Name]
[Title]
[Company Name]
ACCEPTED by [Candidate Name]: _____________________ Date: ___________
9 Common Job Offer Letter Mistakes Ontario Employers Make
| # | Mistake | Consequence | Risk |
|---|---|---|---|
| 1 | Using the offer letter as the only employment document — no separate employment contract | No enforceable termination clause — full common law notice exposure (12–24+ months for senior staff) | 🔴 High |
| 2 | Employment contract signed on Day 1 or after | Contract terms (especially termination clause) may be unenforceable for lack of independent consideration | 🔴 High |
| 3 | Including a termination clause in the offer letter without legal review | Post-Waksdale, any ESA-inconsistent language in the termination clause voids the entire provision | 🔴 High |
| 4 | Guaranteeing a bonus amount in the offer letter | Creates a contractual obligation to pay the stated amount — even if performance doesn’t meet expectations | 🟡 Medium |
| 5 | Using “permanent employee” or similar language | Creates an expectation of employment security inconsistent with the employer’s legal right to terminate on notice | 🟡 Medium |
| 6 | No reference to a full employment contract being forthcoming | The candidate may refuse to sign the employment contract, claiming the offer letter was the full agreement | 🟡 Medium |
| 7 | No offer expiry date | The candidate shops the offer for weeks while the position stays open and other candidates move on | 🟢 Low-medium |
| 8 | Using a US template without Ontario adaptation | US at-will employment language is not valid in Ontario; any “at-will” termination clause is void | 🔴 High |
| 9 | Offering a salary below the posted Pay Transparency range | Creates legal and reputational risk; the candidate has a documented expectation from the posting | 🟡 Medium |
Frequently Asked Questions
Does Ontario require a written employment contract?
The ESA does not require a written employment contract as a condition of employment. However, without a written contract containing a valid termination clause, the employee’s entitlement at termination is governed by the common law — which can mean 12 to 24 or more months of notice for a senior or long-tenured employee. A written employment contract with a valid, reviewed termination clause is the primary tool Ontario employers use to limit this exposure.
Can I include a non-compete clause in an offer letter or employment contract?
For most employees, no. Non-compete clauses for non-executive employees have been void under the Working for Workers Act, 2021 since October 25, 2021. The exception applies only to executive-level employees and to situations involving the sale of a business. For non-executives, the alternatives — non-solicitation clauses, confidentiality agreements, IP assignment provisions, and garden leave — are the appropriate tools.
What happens if the candidate accepts the offer letter but refuses to sign the employment contract?
This is a real risk if the employment contract is not referenced in the offer letter. If the candidate accepts the offer letter and then refuses to sign the employment contract, you have two options: withdraw the offer (before the start date) or allow them to start without a contract — creating a common law employment relationship without a termination clause. This is why the offer letter should explicitly state that execution of the employment contract is a condition of the offer.
How much notice do I need to give a candidate before the start date to sign the employment contract?
At minimum, 5 to 7 business days from the time the full employment contract is provided. Courts look at whether the employee had a meaningful opportunity to review the contract and seek independent legal advice. Providing the contract on a Friday and requiring it signed on Monday is considered inadequate. Best practice is to provide the contract as part of or immediately following the offer letter, not as a last-minute document.
Does the Pay Transparency Act require me to include a salary in my offer letter?
The Pay Transparency Act requires salary ranges in publicly advertised job postings for employers with 25 or more employees — not specifically in offer letters. However, the salary in the offer letter should fall within the range that was publicly posted. If you extend an offer outside the posted range without a documented reason, you are exposed to a claim that the posting was misleading.
Can I withdraw a job offer after it has been accepted?
Withdrawing an accepted offer is legally risky. In Ontario, an accepted job offer may create a contract of employment — and if the candidate has already resigned from their current role in reliance on your offer, damages for the withdrawal could be significant. Always consult with HR or employment counsel before withdrawing an accepted offer. The conditions-precedent language in the offer letter is your clearest mechanism for withdrawing if a condition (like a background check) is not satisfied.