Employee vs. Independent Contractor (Ontario)

The difference is whose business the work belongs to. An employee works in the employer's business: the employer directs the work, supplies the tools, bears the financial risk and keeps the profit. An independent contractor runs a business of their own and sells services to clients, carrying the risk of loss and the chance of profit.

The classification decides a long list of obligations:

• Payroll: employers withhold income tax and deduct CPP contributions and EI premiums for employees; contractors invoice and handle their own tax.
• Minimum standards: the Employment Standards Act, 2000 (ESA) gives employees minimum wage, vacation pay, public holidays, leaves and termination pay; it does not cover genuine contractors.
• WSIB: employers in covered industries must report and pay premiums for their workers.
• Termination: an employee without an enforceable termination clause is owed common-law reasonable notice, which often far exceeds the ESA minimum.
• Intellectual property: under the Copyright Act, an employer is the first owner of copyright in work an employee creates in the course of employment, absent an agreement to the contrary; a contractor keeps copyright unless it is assigned in writing. An IP assignment agreement closes that gap.

Working through your own corporation raises the separate personal services business rules; see independent contractor vs. incorporated.

The leading case is 671122 Ontario Ltd. v. Sagaz Industries Canada Inc., 2001 SCC 59, decided by the Supreme Court of Canada on September 28, 2001. The Court said there is "no one conclusive test" and that what must always occur is a search for the total relationship of the parties. It framed the central question as "whether the person who has been engaged to perform the services is performing them as a person in business on his own account."

Control is always a factor. The others the Court listed are whether the worker provides their own equipment, hires their own helpers, takes on financial risk, has responsibility for investment and management, and has an opportunity for profit. The list is not exhaustive, there is no set formula, and the weight of each factor depends on the facts. The table's last row adds integration and exclusivity, which Ontario courts and regulators also weigh.

Each regulator decides status for its own purposes, and a finding by one does not bind the others.

CRA (CPP, EI and income tax). The CRA's web guidance, Employment status: Employee or self-employed, which replaced guide RC4110 in January 2026, uses two steps for contracts formed outside Quebec: first the parties' intent, then whether the facts support it, using essentially the Sagaz factors above. A payer or a worker can request a CPP/EI ruling online or with Form CPT1.

Labour ministry (ESA). The ESA, enforced by Ontario's Ministry of Labour, Immigration, Training and Skills Development (the Ministry), defines "employee" to include anyone who performs work or supplies services for wages, including an officer of a corporation. Since November 27, 2017, section 5.1 has prohibited an employer from treating an employee as if they were not one. The Ministry's guidance says that invoicing, charging HST or having no payroll deductions does not on its own make someone a contractor, and that a CRA decision is not automatically binding. Misclassification can lead to a notice of contravention carrying a penalty, a prosecution, or both.

WSIB. The WSIB applies its own organizational test under policy 12-02-01, looking at control, ownership of tools and equipment, chance of profit and risk of loss, and whether the person is part of the payer's organization or runs a separate business, along with criteria such as whether the person usually works for one payer and whether the payer has a continuing need for the service. In construction, independent operators, sole proprietors, partners and executive officers are deemed workers who need coverage, subject to limited exemptions, which is why contractor WSIB clearance certificates matter.

Ontario courts also recognize a middle category. In McKee v. Reid's Heritage Homes Ltd., 2009 ONCA 916, the Court of Appeal for Ontario held that an intermediate category exists for non-employment relationships that show a certain minimum economic dependency, which may be demonstrated by complete or near-complete exclusivity. These dependent contractors are owed reasonable notice when the relationship ends.

The exposure can be large. In Keenan v. Canac Kitchens Ltd., 2016 ONCA 79, the Court of Appeal upheld an award of about $125,000, equal to 26 months' notice, for a husband and wife who had worked for the same kitchen company since 1976 and 1983 and received nothing when it closed its operations because it regarded them as independent contractors. The court described exclusivity as a significant factor in separating dependent from independent contractors.

Dependent contractor status is a common-law concept that governs notice. It does not by itself bring a worker under the ESA, which uses its own definition of employee. The Labour Relations Act, 1995 separately includes dependent contractors in its definition of employee for collective bargaining.

Misclassification usually surfaces when the relationship ends, in a CRA payroll audit or in a buyer's due diligence, and every obligation listed at the top of this page becomes a backdated liability. An employer that failed to deduct CPP contributions or EI premiums must pay both the employer's and the employee's share, plus penalties and interest (CRA guidance on the impact of employment status). Under the ESA, the worker can claim retroactive vacation pay, public holiday pay, overtime where it applies, and termination and severance pay. Common-law notice and unreported WSIB premiums come on top.

In a share purchase, the buyer inherits all of this inside the company. In an asset purchase, a buyer that hires the workers can become their successor employer. Diligence should test each contractor relationship against the factors above, not just read the contracts.

To reduce risk, make the facts match the paperwork: real control by the contractor over method and schedule, their own tools, freedom to work for others and to subcontract, pricing by project or deliverable, and invoices with HST where they are registered. A written independent contractor agreement records the intent the CRA looks at first and should include an IP assignment, but it will not override the reality. Where the facts point to employment, a written employment agreement with an enforceable termination clause is the safer fix. Lamba Law's free contractor classification checker runs through the main factors in a few minutes.

Mei Chen runs Northshore Apps Inc., an Oakville software company. In August 2023 she engaged Arjun Patel as a "contractor" developer at $9,000 a month. He worked about 40 hours a week on Northshore's product, used a company laptop and company accounts, attended daily stand-ups, took direction from Mei's product lead and had no other clients. His contract let either side end it on two weeks' notice.

In September 2026, Mei ends the arrangement and Arjun claims he was an employee. Almost every Sagaz factor points to employment: Northshore controlled the work, supplied the tools, carried the financial risk and built him into the team. Under the ESA, just over three years of service means three weeks' notice or pay in lieu, and he could claim 4% vacation pay on roughly $324,000 of fees, about $12,960. Without an enforceable termination clause, his common-law notice claim would be measured in months rather than weeks.

The timing is worse because a buyer is reviewing Northshore for an acquisition and flags the code Arjun wrote. Mei's lawyer negotiates a settlement that includes a confirmatory IP assignment, a moral rights waiver and a full release. Before the sale proceeds, Northshore converts its two remaining long-term "contractors" into employees with written employment agreements.