Tax-Deductible expenses for businesses in Quebec (2026)

Did you know that 40% of Quebec entrepreneurs forget 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 for the deduction of any reasonable expense incurred to earn business income. But what exactly are these eligible expenses? How can you maximize your deductions while complying with the rules of Revenu Québec and the Canada Revenue Agency (CRA) ? This comprehensive guide provides a complete list of tax-deductible expenses for 2026, along with detailed tables, real-world examples by industry, and common mistakes to avoid.

Whether you’re self-employed, an SME owner, or an entrepreneur in specialized sectors such as construction, the real estate or the restaurant industry, you’ll discover how to maximize your tax deductions and legally reduce your tax burden. We also cover what’s new in 2026, special tax credits such as the 30% R&D credit, and how a accountant specializing in tax can save you thousands of dollars.

What is a Tax-Deductible expense for a business?

A tax-deductible expense is an expense incurred as part 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. Relationship 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 expenses

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

Operating Expenses: Regular operating expenses 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 capital assets used over several years (vehicles, equipment, computers, furniture). These expenses are not immediately deductible but are depreciated through the 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 100% Tax-Deductible expenses

Here is the 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 supporting documents.

Photo by Roberto Nickson on Unsplash

Expenses deductible at only 50%

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

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 as eligible expenses. The remaining $90 is not deductible.

Pitfalls to Avoid: If you’re organizing a Promotional event open to the public (product launches, open houses, free tastings), food and beverage expenses are tax-deductible at 100% 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).

Business vehicles: 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

You 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.

Calculating the business portion: (Business kilometres ÷ Total annual kilometres) × 100. Example: 25,000 business kilometres out of a total of 35,000 kilometres = 71.4% business use.

Method 2: Simplified mileage allowance (if applicable)

Self-employed individuals and certain small and medium-sized businesses can use the 2026 prescribed rates by Revenu Québec :

• $0.73/km for the first 5,000 km travelled for business purposes
• $0.67/km for each additional kilometer

This method is simpler (no need to keep all gas and maintenance receipts), but you must keep a Detailed mileage log specifying the date, destination, purpose of the trip, and mileage for each business trip.

2026 capital cost allowance (CCA) limits

If you purchase a vehicle for your business, you cannot deduct the full cost immediately. You must depreciate the vehicle through the capital cost allowance (CCA), with Maximum limits on eligible purchase costs.

Photo by Unsplash

Car Rental: If you lease a vehicle for your business, the lease payments are tax-deductible with a Monthly limit of $950 + taxes (if the lease agreement was signed after 2018). Any amount exceeding this threshold is not deductible.

NON-Deductible expenses

Even if certain expenses seem related to your business, the Tax Act explicitly excludes several categories. Here is the complete list of expenses that cannot never be deducted from your business income in Quebec.

• Personal Expenses: Groceries, personal clothing (except required work uniforms), recreation, personal medical expenses, personal life insurance
• Fines and Penalties: Parking tickets, fines for violations of the Highway Safety Code, and Revenu Québec penalties for late payments
• Business Start-up Expenses: Incorporation fees, legal fees for formation, and initial registration fees (must be capitalized and amortized)
• Provisions and General Reserves: You cannot deduct a “provision for potential bad debts” or a “contingency reserve.” Only actual, documented losses are deductible.
• Owner Drawings: Any amounts you withdraw from the business for personal use are not tax-deductible (they are considered your compensation)
• Expenses Incurred Before the Start of Operations: Expenses for finding a location and 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 your business, interest on personal debt remains non-deductible
• Personal RRSP Contributions: Deductible on your personal tax return, not on your business tax return
• Unreasonable or Excessive Expenses: Revenu Québec may deny a deduction deemed disproportionate to income or industry standards

Special case: gifts to clients

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

Tax-Deductible expenses by business type

Each industry has its own individual 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. A Accountant specializing in business taxation knows the deductions specific to your industry and can identify tax savings you might have missed. At Bankeo, we connect your business with accountants in your field from our network of over 1,500 accountants in Quebec.

Special tax credits you won’t want to miss

In addition to deductions for routine expenses, Quebec and the federal government offer Refundable tax credits that directly reduce your tax bill or result in a refund even if you don’t owe any taxes. 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 Credit, effective for tax years beginning after March 25, 2025, replaces eight former 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%)
• Enhanced rate: 30% on the first $1,000,000 of eligible annual expenses
• Eligibility: All businesses operating a facility in Quebec, regardless of whether they are SMEs or large companies
• Eligible Expenses: Salaries for researchers and developers, research contracts with universities and research centres, materials used in R&D, and a portion of overhead costs
• Refundable tax credit: If your tax liability is less than the credit, you’ll receive a cash refund

Real-life 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 owed or results in a refund.

2. Investment tax Credit

A provincial tax credit designed to encourage the purchase of manufacturing and processing equipment in Quebec. The rate ranges from 4% to 24%, depending on the region and the type of equipment. This credit is particularly beneficial for manufacturing businesses in resource-rich regions.

3. Tax Credit for training

The Act to Promote Workforce Training allows employers to recover a portion of their employees’ training expenses through payroll. Employers are required to spend at least 1% of their payroll on training; otherwise, they face a penalty.

Strategic Advice: Tax credits can amount to 15% to 40% of certain business expenses. However, claims for tax credits require thorough documentation and compliance with strict procedures. An Accountant specializing in tax optimization maximizes your chances of approval and identifies all the tax credits for which you qualify.

5 common mistakes to avoid

After receiving more than 15,000 requests from Quebec entrepreneurs for accountant matching, we’ve identified recurring errors 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 personal and business purchases, claiming expenses that are partially personal (e.g., a cell phone billed at 100% even though it is used 40% for personal purposes).

Solution: Open a bank account and get a credit card dedicated exclusively to your business. 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 (mileage log for a vehicle, call logs for a phone).

Mistake #2: Neglecting training and professional development expenses

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

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

Mistake #3: Miscalculating the CCA for vehicles

Problem: Deduct the total purchase cost of a vehicle in the year of acquisition; ignore the $39,000/$61,000 limits; and forget about the half-rate rule for the first year.

Solution: If you purchase a business vehicle, consult an accountant to correctly calculate the CCA 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: Do not throw away invoices after filing your tax return, and do not scan paper receipts that fade (thermal receipts).

Solution: Revenu Québec and the CRA may audit your tax returns up to 6 years after the end of the tax year (or indefinitely in cases of suspected fraud). Scan all your receipts using an accounting app (QuickBooks, Wave, Momenteo) or keep them in binders labelled by year. Thermal receipts fade: take a photo of them right away.

Mistake #5: Ignoring available special tax credits

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

Solution: Tax credits can amount to tens or even hundreds of thousands of dollars. A Specialized Accountant identifies all relevant tax credits, prepares applications with thorough documentation, and maximizes your refunds. Investing in an accountant who specializes in tax credits generates 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 and the CRA.

Retention period: at least 6 years

You must keep all accounting and tax documents for 6 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 documents until December 31, 2032.

Exception: In cases of fraud, tax evasion, or disputes, Revenu Québec may require documents to be retained for longer than 6 years (no time limit). Caution: Keep documents related to the acquisition of significant assets (real estate, major equipment) indefinitely, even after you’ve disposed of them.

Documents you must keep

• Invoices and receipts: All deductible expenses (suppliers, purchases, overhead costs)
• Bank statements: Business Accounts, Business Credit Cards
• Sales Records: Invoices, cash reports, point-of-sale transactions
• Proof of income: Customer contracts, purchase orders, proof of payment received
• Payroll Records: Employment statements, pay stubs, QPP/CNESST contributions
• Tax Returns: T2, CO-17, GST/QST, copies of filed returns and acknowledgments of receipt
• Mileage logs: If you are claiming vehicle expenses (date, destination, km, purpose of trip)
• Contracts and Leases: Commercial Leases, Supplier Contracts, Major Customer Contracts
• Proof of tax credits: Applications for R&D, training, and investment tax credits with 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 is sufficient to read all details (date, amount, supplier, nature of the expense)
• Files organized by year and category (consistent naming convention)
• Regular backups on 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 photo and links them to your bank transactions. These tools provide secure automatic backup and make management much easier 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 is exactly why Bankeo is here to help you find the right ideal accountant for your business, specializing in your industry and your specific tax needs.

The Bankeo process in 3 simple steps

Step 1: Fill out our form (2 minutes)

Select your industry, revenue, and accounting needs (bookkeeping, tax returns, tax planning, tax credits) and your preferences (budget, location, accounting software used).

Step 2: Our team reviews and selects the right accountants (24-48 hours)

From our network of 1,500+ accountants Throughout Quebec, we identify accountants who are a perfect match for your profile. We take into account their industry expertise (construction, real estate, tech, hospitality, 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 recommended accountants, including their list of services and fee proposals. You choose how many accountants you’d like to meet with (there’s no set limit). Bankeo supports you through the process until the engagement agreement is signed and remains available if the relationship isn’t working out.

Why entrepreneurs trust us: Over 15,000 requests received since 2023

• 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 business owner in construction will have an accountant who is familiar with the CCQ, construction camps, and subcontracting. A self-employed worker will have 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, contact us. We’ll step in to find a solution or match you with another accountant who’s a better fit.

On average, business owners matched through Bankeo with an accountant specializing in tax matters recover $5,000 to $12,000 in additional deductions starting in the 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 salary if I’m self-employed?

No. As a self-employed worker (sole proprietorship), 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 (a corporation), you can pay yourself a salary or dividends based on an optimal tax strategy (see our guide Salary vs. Dividends).

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

Yes, provided that the salary is reasonable and justified based on the tasks performed and hours worked. Revenu Québec pays particular attention to wages paid to family members. You must issue T4 and RL-1 forms, withhold taxes at source, and document hours 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 location for meeting clients), you can deduct the following on a pro-rata basis: electricity, heating, home insurance, municipal taxes, mortgage interest (not the principal paid off), maintenance, and repairs. Calculate the proportion based on floor area: 150 sq. ft. office / 1,500 sq. ft. home = 10%. Deduction: (electricity + heating + taxes + insurance + interest) × 10%.

4. Can I deduct 100% of my meal expenses 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% deductible. Exception: meals provided at a remote work camp (construction, forestry) are 100% deductible.

5. Can I deduct my gym membership to stay in shape for work?

No. Expenses for gym memberships, yoga, sports, or personal wellness activities are never tax-deductible, even if you claim they help you work better. These are personal expenses. A very rare exception applies to professional sports trainers who use the membership directly for their business activities (demonstrations, client lessons).

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

The CCA allows businesses to depreciate (gradually deduct) the acquisition cost of capital assets (vehicles, computers, equipment) over several years according to 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 the asset is fully depreciated. Check out our guide CCA and Depreciation Categories.

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

Key Changes for 2026: (1) New CRIC R&D credit with an enhanced rate of 30% on the first $1 million (replacing eight previous credits). (2) The capital cost allowance (CCA) limit for standard vehicles increased to $39,000 (vs. $36,000 in 2025). (3) The cap for zero-emission vehicles remains at $61,000. (4) The mileage allowance has been increased to $0.73/km for the first 5,000 km and $0.67/km for each additional kilometer.

8. How long do I need to keep my invoices and receipts?

Minimum 6 years from the end of the tax year in question. 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 (legible, complete, and securely stored). 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 ITCs and 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 accountant specializing in tax knows all the legal deductions applicable to your industry, identifies special tax credits (R&D, training, investment), structures your expenses to optimize deductions (choosing between cash purchases and financing, timing of purchases), and prepares a 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 might have overlooked. 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, tax-deductible expenses cover a wide range of categories, from office supplies to 30% R&D tax credits, as well as home offices, business vehicles, and industry-specific expenses.

Three key takeaways:

• Keep thorough records: Keep all your invoices and supporting documents for at least 6 years, preferably in digital form using cloud-based accounting software.
• Learn about the specific rules: 100% vs. 50% deductions, 2026 vehicle CCA limits, home office criteria, sector-specific tax credits.
• Get help: An accountant specializing in corporate taxation generates an ROI of 400% to 800% through identified tax savings and time saved.

Are you ready to optimize your tax situation and stop leaving thousands of dollars in legitimate deductions on the table? Find the ideal accountant for your business with Bankeo in less than 48 hours. Free, fast, and with no obligation. Join the Quebec entrepreneurs who trust our accountant matching service: 15,000+ requests received since 2023.

Sources

• Revenu Québec - Operating Expenses
• Canada Revenue Agency - Business Expenses
• Raymond Chabot Grant Thornton - Tax Guide
• Ordre des CPA du Québec
• Dynacom - Accounting Resources in Quebec
• MPMT - 2026 Auto Expenses: Limits and CCA Rates
• Quebec Ministry of Finance - CRIC Credit for R&D