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Find a Lawyer » Canada Legal Guides » Money, Taxes & IP Canada » Copyright, Trademark & Patents Canada » Can an Employer Claim Ownership of an Employee’s Side Hustle IP in Canada?

Can an Employer Claim Ownership of an Employee’s Side Hustle IP in Canada?

9 Jul 2026 5 min read No comments Copyright, Trademark & Patents Canada
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In Canada, your employer generally cannot claim ownership of intellectual property (IP) created entirely on your own time, using your own resources, and outside the scope of your employment. However, broad IP assignment clauses in employment contracts can complicate this. Filing early for copyright, trademark, or patent protection with CIPO helps establish your independent ownership.

The modern Canadian workforce is incredibly entrepreneurial, with thousands of employees in cities like Toronto, Calgary, and Vancouver running side hustles after their standard workday ends. Whether you are coding a new mobile application, designing a unique clothing line, or inventing a novel mechanical device, a common fear is that your primary employer will swoop in and claim ownership of your creation. In Canada, the intersection of employment law and intellectual property (IP) law determines who truly owns the fruits of your labour. The general rule favours the creator, but corporate contracts can dramatically alter this default position.

Disputes over side hustle IP usually center on whether the creation occurred within the “course of employment.” 📊 If you use company time, company laptops, or proprietary company knowledge to build your side project, your employer has a strong legal argument to claim ownership. To protect your independent business, you must maintain a strict firewall between your day job and your side hustle. Because employment contracts can contain aggressive intellectual property assignment clauses, having a skilled lawyer from our directory review your agreement is the safest way to ensure your side project remains legally yours.

Step-by-Step Process in Canada

Protecting your side hustle requires proactive steps before your project becomes highly profitable. Canadian courts look at specific factual tests to determine IP ownership. Following this process will help you secure your rights and avoid corporate litigation.

Step 1: Review Your Employment Contract

The first step is always to read your current employment agreement. Look specifically for an “Intellectual Property Assignment Clause” or a “Non-Compete Clause.” Many companies, especially tech firms in Ottawa or Montreal, use broad language attempting to claim ownership of anything you invent while employed by them, even on your own time. While overly broad clauses are often unenforceable in Canada, they still pose a significant legal threat that must be analyzed by a local law firm.

Step 2: Establish the “Course of Employment” Firewall

To ensure your IP belongs to you under the Copyright Act and the Patent Act, you must prove it was not created in the course of your employment. 🔒 This means strictly prohibiting cross-contamination. Never use your company-issued laptop to write code for your side hustle. Do not use your employer’s software licenses, cloud storage, or physical office space. Most importantly, never work on your personal project during your paid working hours.

Step 3: Document Your Independent Creation Process

Evidence is everything in an intellectual property dispute. Keep meticulous logs of when and where you worked on your project. Retain receipts for the personal computer you bought, the domain names you registered, and the software you paid for out of your own pocket. If your employer ever challenges your ownership, a well-documented timeline proving the project was built entirely independently on weekends and evenings is your best defence.

Step 4: Register Your IP with CIPO

Do not wait for your side hustle to make a million dollars before protecting it. 💮 You should formally register your assets with the Canadian Intellectual Property Office (CIPO). This might include registering a trademark for your brand name, filing a copyright for your software code, or applying for a patent if you invented a physical product. A formal CIPO registration in your own name creates a strong legal presumption of independent ownership.

Step 5: Consider a Release or Waiver

If your side hustle is somewhat related to your day job’s industry, the legal lines can get blurry. In these high-risk scenarios, it may be strategic to disclose the side hustle to your employer and request a written waiver or release of IP rights. By getting your employer to sign a document explicitly stating they have no claim to your specific side project, you remove all future legal ambiguity.

How Much Does it Cost in Canada?

Securing your side hustle IP involves both legal consultation fees and federal government registration fees.

  • Contract Review: Having an employment or IP lawyer review your contract typically costs between $300 and $600 CAD.
  • CIPO Trademark Registration: The federal fee is exactly $491.06 CAD for the first class of goods or services when filed online.
  • CIPO Copyright Registration: The government fee is just $63 CAD for an electronic filing.
  • CIPO Patent Filing: Standard filing fees are exactly $241.24 CAD for a small entity (or $595.06 CAD for a standard entity), though patent agent fees will add several thousand dollars.

How Long Does the Process Take?

Reviewing your employment contract and setting up strict boundaries can be done in a matter of days. Securing your actual IP rights takes longer. A copyright registration with CIPO is fast, usually taking 1 to 2 weeks. However, registering a trademark for your side hustle’s brand name in Canada is a lengthy process, currently taking anywhere from 18 to 24 months to reach full registration, though your rights begin accumulating the day you file.

Employee ActionRisk of Employer IP ClaimCanadian Legal Defence
Using a Work Laptop for the Side HustleVery High RiskWeak. Courts often view the use of company equipment as contributing to the “course of employment.”
Working on Weekends on Personal DevicesLow RiskStrong. Clear separation of time and resources heavily favours the employee’s ownership.
Side Hustle Competes with EmployerHigh RiskComplicated. Even if created independently, it may violate your fiduciary duty or non-compete clauses.

Frequently Asked Questions (FAQ)

What if my employment contract says they own everything I invent?

In Canada, courts often find overly broad “catch-all” IP assignment clauses unreasonable and unenforceable, especially if the invention has absolutely nothing to do with the employer’s business and was created on your own time. However, you should still have a lawyer review it.

Do I legally have to tell my boss about my side hustle?

Not necessarily, unless your employment contract contains a specific disclosure clause for outside business activities, or if your side hustle presents a direct conflict of interest with your day job.

What if I only answered a few side-hustle emails while at the office?

While a few emails might seem minor, it creates cross-contamination. If a dispute arises, your employer’s lawyers will use server logs to argue you used company time for your personal business, weakening your independent IP claim.

Can they fire me for starting a side hustle?

In most Canadian provinces, an employer can terminate you “without cause” at any time, provided they give you proper severance pay. If your side hustle competes with them or impacts your job performance, they might even attempt to terminate you “with cause.”

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