Self-Employed in Quebec: Unraveling Personal vs. Business Expenses

Jan 26
3 min read

Being your own boss offers incredible freedom. However, when tax season arrives in Quebec, that freedom comes with a significant administrative burden: figuring out exactly what counts as a legitimate business expense and what doesn't.

Since Quebecers have to file with both the Canada Revenue Agency (CRA) and Revenu Québec, the scrutiny is double. The golden rule for both agencies is simple in theory, but tricky in practice: You can only deduct expenses that were reasonably incurred for the purpose of earning income.

If you use your car, your home, or your phone for both work and personal life, you are operating in the "mixed expenses" grey zone. Here is how to navigate it safely for your 2025 tax return.

1. Home Office: The Prorated Rule

This is the most popular deduction for freelancers, but also one of the most audited. If you use a room in your home or apartment to work, you can deduct a portion of your housing costs.

The Calculation: You must establish the percentage of your home's square footage used for work.

Example: Your office is 150 sq. ft. and your home is 1,500 sq. ft. You can deduct 10% of your eligible home expenses.

What is deductible (at that percentage):

Electricity, heating, and water.
Home insurance.
Maintenance and minor repairs.
Property taxes (municipal and school taxes).
Mortgage interest (but NEVER the principal portion of the payment).
Rent (if you are a tenant).

Warning: To qualify, this space must be your principal place of business (more than 50% of the time) or be used exclusively to meet clients on a regular basis. Working at the kitchen table while the kids are eating dinner generally does not count as a "dedicated workspace."

2. The Vehicle: The Dreaded Logbook

If you use your personal car to visit clients, it’s deductible. If you use it to get groceries, it isn't.

Neither Revenu Québec nor the CRA accepts vague estimates (e.g., "I use my car about 50% for work"). They require proof.

The Requirement: The Mileage Log You must record every single business trip: date, destination, purpose, and number of kilometers. At the end of the year, you compare your business mileage to your total mileage to get your deductible percentage.

Eligible expenses: Gas, registration (SAAQ), insurance, repairs, interest on a car loan, or leasing fees.
The Trap: The drive between your home and your main office (if you rent an office elsewhere) is considered personal commuting, not business travel.

3. Meals and Entertainment: The 50% Rule

Taking a client to a restaurant to sign a contract? That’s a business expense. Eating a sandwich alone in your car between gigs? That’s a personal expense (you have to eat to live).

The general rule is that you can deduct 50% of the bill for food, beverages, and entertainment expenses incurred to earn income.

Pro Tip: Always write the name of the client you met and the business topic discussed on the back of the receipt (or in your digital notes). If you get audited in four years, you won't remember who you had lunch with on a random Tuesday.

4. Phone and Internet: Be Realistic

This is a frequent point of friction during audits.

Internet: Even if you work from home, it is unlikely that you use your home internet 100% for work (think Netflix, personal social media, family usage). Claiming 50% to 75% is often viewed as reasonable. Claiming 100% raises a red flag unless you have a distinct, dedicated business line.
Cell Phone: Same logic. If it is your only phone, you must estimate the business portion versus personal use.

5. What is ALMOST NEVER Deductible (The Myths)

There are many urban legends about what you can "write off." Let’s clarify a few:

Clothing: No, your business suit is not deductible, even if you only wear it to meet clients. Only specific uniforms or safety gear (steel-toe boots) are deductible.
Personal Care: Haircuts, makeup, and gym memberships are not deductible, even if you need to "look good" for your clients (except in very rare cases for performing artists).
Traffic Tickets: A speeding ticket you got while rushing to a client meeting is never deductible. You broke the law, not the business.

Conclusion: Organization Pays Off

As a self-employed worker in Quebec, you are responsible for both the employer and employee portions of the QPP (Quebec Pension Plan) and often the QPIP (Parental Insurance), plus the Health Services Fund. The tax bill adds up fast.

Don't leave money on the table by forgetting valid deductions, but don't put your business at risk by inventing expenses. When in doubt, the rule is simple: No receipt, no deduction.