Business Law in Canada

Starting or running a business in Canada means signing contracts, hiring employees, registering for taxes, and protecting your ideas. Each of these actions has legal consequences. This guide explains the terms you will encounter — with specific legislation, dollar amounts, and jurisdiction differences — so you can make informed decisions before problems arise.

Business Structures: Sole Proprietorship, Partnership, and Corporation

Choosing a business structure is the first legal decision most entrepreneurs make. It determines personal liability, tax treatment, and administrative requirements.

A sole proprietorship requires no separate registration beyond a business name (if you operate under a name other than your own). A corporation is a separate legal entity — it can own property, sign contracts, and be sued in its own name.

Incorporating a Business in Canada: Federal vs. Provincial

You can incorporate federally under the Canada Business Corporations Act (CBCA) or provincially under each province's equivalent legislation. Both create a corporation with limited liability, but there are practical differences.

Federal incorporation gives you the right to use your corporate name across all provinces and territories. You must still register extra-provincially in each province where you carry on business — typically $80–$350 per province. Federal corporations must file an annual return with Corporations Canada ($12 online).

Provincial incorporation is simpler if you operate in one province. An Ontario corporation incorporated under the Business Corporations Act (Ontario) does not automatically have name protection outside Ontario.

Key requirement for both: CBCA corporations with more than one director must have at least 25% Canadian-resident directors, unless the corporation qualifies for an exemption.

As of June 2026, CBCA corporations must maintain a register of individuals with significant control (ISC) — anyone who directly or indirectly controls 25% or more of voting shares or 25% or more of the fair market value of all shares. This register must be updated within 15 days of any change and is accessible to law enforcement and tax authorities.

Contracts: What Makes an Agreement Legally Binding

A contract does not need to be written to be enforceable — but written contracts are far easier to prove in court. Four elements must be present for a contract to be binding:

1. Offer — One party proposes specific terms. 2. Acceptance — The other party agrees to those exact terms. A counter-offer kills the original offer. 3. Consideration — Something of value exchanged by each party. A promise to pay money, deliver goods, or provide a service all qualify. A promise to give a gift is not a contract — there is no consideration from the recipient. 4. Intention to create legal relations — Both parties must intend the agreement to be legally binding. Social arrangements are not contracts.

Breach of contract occurs when one party fails to fulfill their obligations without a legal excuse. Remedies in Canadian courts:

• Damages — Money to put the non-breaching party in the position they would have been in had the contract been performed.
• Specific performance — A court order requiring the breaching party to do what they promised. Courts grant this rarely — mainly for unique goods or real estate.
• Rescission — Cancelling the contract and restoring both parties to their original positions.

A material breach goes to the root of the contract and allows the other party to treat the contract as ended and sue for damages. A minor breach (late delivery by one day) does not automatically end the contract.

Limitation period: In most provinces, you have 2 years from the date you discovered the breach to start a lawsuit. Quebec's limitation period is 3 years under art. 2925 of the Civil Code.

The Corporate Veil: When Shareholders Become Personally Liable

The "corporate veil" is the legal separation between a corporation and its shareholders. Shareholders are generally not responsible for corporate debts. Courts will "pierce the corporate veil" — hold shareholders personally liable — in specific circumstances:

• The corporation was used as a vehicle for fraud or to evade legal obligations.
• The corporation was not operated as a separate entity (commingling personal and corporate funds, no separate bank account, no corporate records).
• A statute specifically imposes personal liability.

Directors face personal liability for specific obligations regardless of the corporate veil:

Intellectual Property: What Canadian Businesses Can Protect

IP is governed federally. Registration is not automatic — you must apply for patents, trademarks, and industrial designs.

Copyright exists automatically when a work is created — no registration needed. However, registration creates a presumption of ownership that is useful in litigation. Trademark registration through the Canadian Intellectual Property Office (CIPO) costs $458 for the first class of goods or services (online filing, 2026 fee schedule).

A non-disclosure agreement (NDA) protects trade secrets and confidential information shared during business negotiations. In Canada, NDAs cannot be used to prevent reporting of criminal conduct or human rights violations. Ontario's Working for Workers Act, 2021 also restricts non-compete agreements — they are void for most employees, with two exceptions: executives and employees who sell a business and then become employees of the buyer.

GST/HST: Registration, Rates, and Obligations

Any business with annual taxable revenues exceeding $30,000 must register for GST/HST. Below this threshold, registration is voluntary but may be advantageous — registered businesses can claim input tax credits (ITCs) to recover GST/HST paid on business expenses.

GST/HST returns are filed monthly, quarterly, or annually depending on revenue. Businesses with revenues over $6 million must file monthly. Failure to remit collected GST/HST is a serious offence — directors can be held personally liable for unremitted amounts.

Canada's Anti-Spam Legislation (CASL) applies to any commercial electronic message sent to a Canadian recipient. Businesses must have express or implied consent before sending marketing emails and must include an unsubscribe mechanism. Penalties reach $10 million per violation for organizations.

Employment Law Basics for Business Owners

When you hire employees, provincial employment standards legislation sets minimum obligations. The federal Canada Labour Code applies only to federally regulated industries — banks, airlines, telecommunications, and interprovincial transport.

Termination without cause is permitted in Canada — you can let an employee go for any reason or no reason, as long as you provide adequate notice or pay in lieu. Minimum notice under Ontario's Employment Standards Act, 2000:

Common law notice — determined by courts using the Bardal factors (age, length of service, character of employment, availability of similar work) — is almost always higher than the ESA minimum. A 50-year-old manager with 12 years of service in a specialized role could be entitled to 14–18 months of notice at common law.

Severance pay (separate from termination notice) applies in Ontario when an employee has 5+ years of service and the employer has a payroll over $2.5 million: 1 week per year of service, up to 26 weeks.

Just cause for termination without any notice requires serious misconduct — dishonesty, repeated policy violations after warnings, or conduct fundamentally incompatible with continued employment. A single incident of poor performance rarely qualifies.

Independent contractor vs. employee: Misclassifying an employee as an independent contractor exposes a business to liability for unremitted source deductions, EI premiums, CPP contributions, and employment standards entitlements. Courts look at the actual working relationship, not just the contract label. Key factors: control over how work is done, ownership of tools, chance of profit and risk of loss, integration into the business.

Dispute Resolution: Courts, Arbitration, and Mediation

Not every business dispute needs to go to court. Options in Canada vary by amount and complexity.

Small Claims Court handles disputes up to $35,000 in Ontario and BC, $50,000 in Alberta, and $15,000 in Quebec. No lawyer required. Filing fees in Ontario range from $102 (claims under $1,000) to $394 (claims $10,001–$35,000).

Arbitration is a private process where a neutral arbitrator makes a binding decision. Many commercial contracts include mandatory arbitration clauses. The International Commercial Arbitration Act (based on the UNCITRAL Model Law) governs international arbitrations in Canada.

Mediation is non-binding — a mediator helps parties reach a voluntary settlement. Ontario requires mandatory mediation for most civil cases in Toronto, Ottawa, and Essex County before a case can proceed to trial.

Limitation periods apply regardless of which process you use. In most provinces, you have 2 years from discovery of the claim to start proceedings.