Tax-Deductible Expenses for Businesses in Quebec (2026)

Did you know that 40% of Quebec entrepreneurs fail to claim legitimate tax deductions every year? This oversight costs an average of $3,500 to $8,000 per business annually. In Quebec, the Tax Act allows you to deduct any reasonable expense incurred to generate business income. But what exactly are these eligible expenses? How can you maximize your deductions while complying with the rules of Revenu Québec andthe Canada Revenue Agency (CRA)? This comprehensive guide provides you with a complete list of deductible expenses for 2026, including detailed tables, concrete examples by industry, and common mistakes to avoid.

Whether you're a self-employed individual, an SME owner, or an entrepreneur in specialized sectors such as construction,real estate, or the restaurant industry, you'll learn how to maximize your tax deductions and legally reduce your tax burden. We also cover the latest updates for 2026, special tax credits such as the 30% R&D credit, and how a tax specialist can help you save thousands of dollars.

What is a tax-deductible expense for a business?

A tax-deductible expense is a cost incurred in the course of your business’s normal operations that you can subtract from your gross revenue to reduce your taxable income. According to Revenu Québec, an expense is eligible if it meets three basic criteria.

The three eligibility criteria for an expense

1. Reasonableness: The expense must be proportional to the business’s revenue and industry standards. A restaurant that spends $80,000 on office supplies would be deemed unreasonable by Revenu Québec.

2. Connection to business income: The expense must have been incurred directly to earn business income. Personal expenses (everyday clothing, personal groceries) are never deductible, even if you are self-employed.

3. Supporting documents: You must keep invoices, receipts, or detailed bank statements that prove the nature, amount, date, and business purpose of the expense. These documents must be retained for 6 years after the end of the relevant tax year.

Operating expenses vs. capital expenditures

There is an important tax distinction between two types of expenses:

Operating expenses: Regular operating costs incurred during the year (rent, salaries, supplies, electricity). These expenses are 100% deductible in the year they are incurred, with some exceptions (meals: 50%).

Capital expenditures: Purchases of long-lived assets used over several years (vehicles, equipment, computers, furniture). These expenses are not immediately deductible but are depreciated through capital cost allowance (CCA) over several years at rates prescribed by the CRA. For example, a $3,000 computer (Class 50, 55% rate) will be depreciated over approximately 3–4 years.

Categories of expenses that are 100% deductible

Here is a complete list of expense categories that you can deduct in full from your business income, along with specific examples for each sector. These routine expenses are deductible in the year they are incurred, provided they meet the reasonableness test and you keep your receipts.

Photo by Roberto Nickson on Unsplash

Expenses that are only 50% deductible

Certain categories of expenses are subject to a 50% deduction limit under federal and Quebec tax rules. This restriction primarily applies to expenses that include an element of personal use.

Calculation example: You invite a potential client to a restaurant to discuss a contract. Total bill: $180 (taxes included). You can deduct: $180 × 50% = $90 from your eligible expenses. The remaining $90 is not deductible.

Pitfall to avoid: If you’re organizing a promotional event open to the public (product launch, open house, free tasting), food and beverage expenses are 100% tax-deductible because the purpose is purely commercial and offers no personal benefit. Be sure to document the promotional nature of the event (posters, public invitations, photos).

Company Cars: Rules and Limits for 2026

Expenses related to vehicles used for business purposes are subject to specific rules with caps to prevent abuse. The rules differ depending on whether you use the actual expense method or the mileage allowance.

Two methods for deducting vehicle expenses

Method 1: Proportional Actual Expenses

Keep all receipts and deduct the business portion of each expense (gas, maintenance, insurance, registration, car wash). If you use your vehicle 70% for business and 30% for personal use, you deduct 70% of each expense.

Calculation of business mileage: (Business miles ÷ Total annual miles) × 100. Example: 25,000 business miles out of a total of 35,000 miles = 71.4% business use.

Method 2: Simplified mileage allowance (if applicable)

For self-employed individuals and certain small and medium-sized businesses, you can use the rate prescribed by Revenu Québec for 2026:

• $0.73 per kilometer for the first 5,000 kilometers traveled for business purposes
• $0.67 per additional kilometer

This method is simpler (you don't need to keep all your gas and maintenance receipts), but you must keep a detailed mileage log that includes the date, destination, purpose of the trip, and mileage for each business trip.

Capitalization Limits for Capitalization Allowances (CCA) 2026

If you purchase a vehicle for your business, you cannot deduct the full cost immediately. You must depreciate the vehicle using the capital cost allowance (CCA), subject to maximum limits on the eligible purchase cost.

Photo by Unsplash

Vehicle Lease: If you lease a vehicle for your business, the lease payments are deductible up to a monthly limit of $950 plus taxes (if the lease agreement was signed after 2018). Any amount exceeding this limit is not deductible.

Non-deductible expenses

Even if certain expenses appear to be related to your business, the Tax Act explicitly excludes several categories. Here is the complete list of expenses that can never be deducted from your business income in Quebec.

• Personal expenses: Groceries, personal clothing (except required work uniforms), leisure activities, personal medical expenses, personal life insurance
• Fines and penalties: Parking tickets, fines for violations of the Highway Safety Code, Revenu Québec penalties for late payments
• Startup expenses: Incorporation costs, legal fees for formation, initial registration fees (must be capitalized and amortized)
• Allowances and general reserves: You cannot deduct an "allowance for potential bad debts" or a "contingency reserve." Only actual, documented losses are deductible
• Owner withdrawals: Any amounts you withdraw from the business for personal use are not deductible expenses (they are considered your compensation)
• Expenses incurred prior to the start of operations: Costs associated with finding a location, pre-launch market research (must be capitalized)
• Income tax: Your personal income tax or your corporation's income tax is never deductible (to avoid double deduction)
• Interest on personal loans: Even if you reinvest the money in the business, interest on personal debt remains non-deductible
• Personal RRSP contributions: Deductible on your personal tax return, not on the business tax return
• Unreasonable or excessive expenses: Revenu Québec may deny a deduction deemed disproportionate to income or industry standards

Special case: Gifts to customers

Gifts valued at less than $500 per person per year (calendars, gift baskets, promotional pens) are 100% tax-deductible if they bear your company’s logo. Gifts valued at more than $500 are considered entertainment expenses (50% tax-deductible). Cash gifts are never tax-deductible.

Deductible expenses by business type

Each industry has its own specific eligible expenses. Here is a detailed table of industry-specific deductions to help you maximize your deductions based on your field.

Every industry has its own complex tax nuances. An accountant specializing in corporate tax understands the deductions specific to your sector and can identify tax savings you might have overlooked. At Bankeo, we connect your business with expert accountants in your field from our network of over 1,500 firms in Quebec.

Special tax credits you won't want to miss

In addition to deductions for everyday expenses, Quebec and the federal government offer refundable tax credits that directly reduce your tax bill or result in a refund even if you owe no tax. These programs are often underutilized due to a lack of awareness.

1. Tax Credit for R&D, Innovation, and Pre-commercialization (CRIC)

The new CRIC tax credit, effective for tax years beginning after March 25, 2025, replaces eight previous tax credits and offers higher rates. According to the Quebec Ministry of Finance, this credit is intended to support innovation.

• Base rate: 20% of eligible R&D expenses (up from the previous 14%)
• Preferential rate: 30% on the first $1,000,000 of eligible annual expenses
• Eligibility: All companies operating a facility in Quebec, regardless of whether they are SMEs or large enterprises
• Eligible expenses: Salaries for researchers and developers, research contracts with universities and research centers, materials used in R&D, and a portion of overhead costs
• Refundable credit: If your tax liability is less than the credit amount, you will receive a cash refund

Real-world example: A tech startup invests $800,000 in developer salaries and R&D equipment. CRIC credit: $800,000 × 30% = $240,000 in refundable tax credit. This amount directly reduces the tax liability or results in a refund.

2. Investment Tax Credit

A provincial credit program designed to encourage the purchase of manufacturing and processing equipment in Quebec. Interest rates range from 4% to 24%, depending on the region and the type of equipment. Particularly beneficial for manufacturing companies in resource-rich regions.

3. Tax Credit for Training

The law promoting workforce development allows employers to recoup a portion of their employees' training expenses through their payroll. Employers are required to spend at least 1% of their payroll on training; otherwise, they face a penalty.

Strategic Tip: Tax credits can account for 15% to 40% of certain business expenses. However, applying for credits requires thorough documentation and adherence to strict procedures. An accountant with expertise in tax optimization maximizes your chances of approval and identifies all the credits for which you are eligible.

5 Common Mistakes to Avoid

After helping more than 12,000 Quebec entrepreneurs find an accounting partner, we’ve identified common mistakes that cost thousands of dollars in lost deductions or penalties from Revenu Québec.

Mistake #1: Mixing personal and business expenses

Problem: Using the same credit card for both personal and business purchases, and claiming expenses that are partially personal (e.g., claiming 100% of a cell phone bill when it is used 40% for personal purposes).

Solution: Open a bank account and get a credit card exclusively for business use. If an asset is used for both personal and business purposes (such as a vehicle or a phone), carefully calculate the business portion and keep records of it (a mileage log for the vehicle, call logs for the phone).

Mistake #2: Neglecting training and professional development costs

Problem: Many entrepreneurs forget to claim expenses for industry conferences, online courses (such as Udemy and Coursera for professional skills), subscriptions to trade journals, and professional books.

Solution: Keep all receipts for training courses directly related to your current job. If you’re a web developer taking an advanced React course, it’s 100% tax-deductible. If you’re taking a yoga class to manage stress, it’s not tax-deductible (personal benefit).

Mistake #3: Miscalculating the vehicle's useful life

Problem: Calculate the total purchase cost of a vehicle in the year of purchase, ignoring the $39,000/$61,000 limits and disregarding the half-rate rule for the first year.

Solution: If you purchase a business vehicle, consult an accountant to correctly calculate the capital cost allowance based on the category (10.1 or 54), apply the cap, and spread the depreciation over several years. An error could trigger a tax audit.

Mistake #4: Not keeping supporting documents for 6 years

Problem: Throwing away invoices after filing the tax return; failing to scan paper receipts that fade (thermal receipts).

Solution: Revenu Québec and the CRA can audit your tax returns up to six years after the end of the tax year (or indefinitely in cases of suspected fraud). Scan all your receipts using accounting software (QuickBooks, Wave, Momenteo) or store them in binders labeled by year. Thermal receipts fade: take a photo of them immediately.

Mistake #5: Ignoring available special tax credits

Problem: Failing to claim R&D tax credits (for tech startups), investment tax credits (for manufacturers), or sector-specific tax credits due to a lack of awareness or perceived complexity.

Solution: Tax credits can amount to tens or even hundreds of thousands of dollars. A specialized accountant identifies all applicable credits, prepares claims with thorough documentation, and maximizes your refunds. Investing in an accountant who specializes in tax credits yields an average ROI of 300% to 800%.

Photo by Olga DeLawrence on Unsplash

Document retention: duration and format

Carefully keeping your supporting documents is a legal requirement and your best protection in the event of a tax audit. Here are the official rules according to Revenu Québec andthe CRA.

Shelf life: at least 6 years

You must keep all accounting and tax records for six years from the end of the tax year to which they relate. For example, for the 2026 tax year (ending December 31, 2026, for most businesses), you must keep the records until December 31, 2032.

Exception: In cases of fraud, tax evasion, or disputes, Revenu Québec may require documents to be retained for longer than six years (no time limit). Note: Keep documents related to the acquisition of significant assets (real estate, major equipment) indefinitely, even after you have disposed of them.

Documents that must be retained

• Invoices and receipts: All deductible expenses (suppliers, purchases, overhead costs)
• Bank statements: Business accounts, business credit cards
• Sales records: Invoices issued, cash register reports, point-of-sale transactions
• Proof of income: Customer contracts, purchase orders, proof of payment received
• Payroll Records: Employment History Statements, Pay Stubs, RRQ/RQAP/CNESST Contributions
• Tax returns: T2, CO-17, GST/QST, copies of filed returns and acknowledgments of receipt
• Mileage logs: If you claim vehicle expenses (date, destination, mileage, purpose of trip)
• Contracts and Leases: Commercial leases, supplier contracts, major client contracts
• Tax Credit Documentation: Applications for R&D, training, and investment credits, including supporting documentation

Paper vs. digital: both are accepted

Revenu Québec and the CRA accept digital documents provided they are legible, complete, and authentic. You can scan your paper invoices and destroy the originals IF you follow these rules:

• Image quality sufficient to read all details (date, amount, vendor, nature of the expense)
• Files organized by year and category (consistent naming convention)
• Regular backups to at least two separate storage media (cloud + external hard drive, or two different cloud services)
• Preferably in a non-editable format (PDF) to ensure integrity

Bankeo's recommendation: Use cloud-based accounting software (QuickBooks, Wave, Momenteo) that automatically captures your receipts via photos and links them to your bank transactions. These tools provide secure automatic backups and make it much easier to manage your records in the event of a tax audit.

How Bankeo helps you maximize your tax deductions

Maximizing your tax deductions while complying with the complex rules of Revenu Québec and the CRA requires specialized accounting expertise. That’s exactly why Bankeo exists: to connect you with the ideal accountant for your business—one who specializes in your industry and your specific tax needs.

The Bankeo process in 3 simple steps

Step 1: Fill out our form (2 minutes)

Please indicate your industry, revenue, accounting needs (bookkeeping, tax filings, tax planning, tax credits), and preferences (budget, location, accounting software used).

Step 2: Our team reviews and selects the appropriate accountants (24–48 hours)

From our network of over 1,500 accounting firms across Quebec, we identify the accountants who are the perfect fit for your needs. We consider their industry expertise (construction, real estate, technology, food service, etc.), their experience with similar clients, their rates, and their approach to client service.

Step 3: Meet with the selected accountants and make your choice

You’ll receive the full contact information for the recommended accountants, including their list of services and their fee proposals. You choose how many accountants you’d like to meet with (there’s no set number). Bankeo supports you through the process until the contract is signed and remains available if the relationship isn’t working out.

Why over 12,000 entrepreneurs trust us

• Free for entrepreneurs: Our matching service is 100% free for entrepreneurs.
• Complete transparency: You’ll receive all the information about the recommended accountant (services, rates, experience, customer reviews) before you commit.
• Guaranteed industry expertise: We only match you with accountants who have proven expertise in your industry. A construction contractor will be paired with an accountant who understands the CCQ, job sites, and subcontracting. A self-employed individual will be paired with an accountant who specializes in home-based businesses and personal tax optimization.
• Ongoing support: If your relationship with your accountant isn’t going as planned, please contact us. We’ll step in to find a solution or match you with another accountant who’s a better fit.

On average, entrepreneurs matched through Bankeo with an accountant specializing in tax matters recover an additional $5,000 to $12,000 in deductions in their first year. Investing in a good accountant yields a return on investment of 400% to 800% in tax savings and time saved.

Frequently Asked Questions (FAQ)

1. Can I deduct my income if I am self-employed?

No. As a self-employed individual (sole proprietor), your "salary" is the business's net profit after all expenses. You cannot deduct a salary paid to yourself, as this would constitute a double deduction. If you are incorporated (corporation), you can pay yourself a salary or dividends based on an optimal tax strategy (see our guide on salaries vs. dividends).

2. My spouse works for my business. Can I deduct their salary?

Yes, provided that the salary is reasonable and justified in relation to the tasks performed and the hours worked. Revenu Québec pays particular attention to salaries paid to family members. You must issue T4 and RL-1 forms, withhold taxes at source, and document the hours worked and responsibilities. An unreasonably high salary will be rejected during an audit.

3. What expenses are tax-deductible for a home office?

If you meet the criteria (space used exclusively for business purposes or as your primary place for meeting clients), you can claim a proportional deduction for: electricity, heating, home insurance, property taxes, mortgage interest (not the principal paid off), maintenance, and repairs. Calculate the proportion based on floor area: 150-square-foot office / 1,500-square-foot house = 10%. Deduction: (electricity + heating + taxes + insurance + interest) × 10%.

4. Can I claim a 100% deduction for my meals if I work from home?

No. Personal meals are never tax-deductible, even if you work from home. Only business meals with clients, suppliers, or partners are 50% tax-deductible. Exception: Meals provided at a remote work site (construction, forestry) are 100% tax-deductible.

5. Can I claim a tax deduction for my gym membership to stay in shape for work?

No. Fees for gyms, yoga, sports, or personal wellness activities are never tax-deductible, even if you claim they help you work more effectively. These are personal expenses. A very rare exception applies to professional sports trainers who use their membership directly for their business activities (such as demonstrations or client lessons).

6. How does capital cost allowance (CCA) work?

The CCA allows you to depreciate (gradually deduct) the purchase cost of capital assets (vehicles, computers, equipment) over several years at rates prescribed by the CRA. Example: $2,000 computer (Class 50, 55% rate). Year 1: CCA of $1,100 (2,000 × 55%). Year 2: CCA of $495 (900 × 55%). And so on until fully depreciated. See our guide to CCA and depreciation classes.

7. What are the new tax changes for Quebec businesses in 2026?

Key changes for 2026: (1) New CRIC R&D credit with a 30% bonus rate on $1 million (replacing 8 previous credits). (2) CAPE limit for standard vehicles increased to $39,000 (vs. $36,000 in 2025). (3) Zero-emission vehicle cap maintained at $61,000. (4) Mileage allowance increased to $0.73/km for the first 5,000 km and $0.67/km for additional kilometers.

8. How long should I keep my bills and receipts?

At least 6 years from the end of the relevant tax year. Example: For the 2026 tax year, keep records until December 31, 2032. In the event of fraud or a dispute, Revenu Québec may request records beyond the 6-year period. Both paper and digital formats are accepted (provided they are legible, complete, and properly saved). Use cloud-based accounting software to automatically secure your documents.

9. Do I have to pay GST/QST on all my deductible expenses?

Not necessarily. If you are registered for GST/QST, you pay taxes on your purchases, but you can recover these amounts through input tax credits (ITCs) and input tax refunds (ITRs). The recovered taxes are not included in the final deductible expense. Only the net amount (before recoverable taxes) is deductible on your financial statements.

10. How can an accountant help me maximize my tax deductions?

A tax specialist knows all the legal deductions applicable to your industry, identifies special tax credits (R&D, training, investment), structures your expenses to maximize deductions (choosing between cash purchases and financing, timing of purchases), prepares an annual tax plan, and protects you in the event of a tax audit. On average, a good accountant identifies $5,000 to $12,000 in additional deductions that the business owner would have missed. Find your ideal accountant with Bankeo.

Conclusion: Don't leave money on the table

Understanding and maximizing your tax deductions is one of the most powerful ways to improve the profitability of your Quebec-based business. As we’ve seen in this comprehensive guide, deductible expenses cover a wide range of categories, from office supplies to 30% R&D tax credits, including home offices, company vehicles, and industry-specific expenses.

The three key takeaways:

• Keep thorough records: Keep all your invoices and supporting documents for at least six years, preferably in digital form using cloud-based accounting software.
• Understand the specific rules: 100% vs. 50% deductions, 2026 vehicle depreciation limits, home office criteria, and sector-specific tax credits.
• Get expert guidance: An accountant specializing in corporate tax can generate a return on investment (ROI) of 400% to 800% through identified tax savings and time saved.

Are you ready to optimize your taxes and stop leaving thousands of dollars in legitimate deductions on the table? Find the perfect accountant for your business with Bankeo in less than 48 hours. It’s free, fast, and no-obligation. Join the 12,000+ Quebec entrepreneurs who have trusted our accountant matching service.

Sources

• Revenu Québec - Operating Expenses
• Canada Revenue Agency - Business Expenses
• Raymond Chabot Grant Thornton - Tax Guide
• Quebec Order of Chartered Accountants
• Dynacom - Accounting Resources in Quebec
• MPMT - 2026 Vehicle Expenses: Limits and DPA Rates
• Quebec Ministry of Finance - CRIC Credit for R&D