Tax season can be overwhelming for small business owners but understanding what deductions you’re entitled to can make a big difference in your bottom line. Whether you’re operating as a sole proprietorship, a partnership, or an incorporated business, knowing which expenses you can write off is essential to maximizing your returns and staying compliant with the Canada Revenue Agency (CRA). In this blog, we’ll walk you through some of the most common and specific deductions you may be eligible for, so you can make the most of your business expenses.
Disclaimer: The information provided in Business Link’s blog is for general informational purposes only and does not constitute professional tax or financial advice. Tax laws and regulations are subject to change, and their application can vary based on individual circumstances and business structures. While we strive to ensure the content is accurate and up to date, we recommend consulting with a certified accountant, tax professional, or the Canada Revenue Agency (CRA) directly for advice tailored to your specific situation. This information was last updated on April 9, 2025.
1. Home Office Expenses
If you operate your business from a home office as your principal place of business, you can deduct a portion of your home expenses proportional to the space used for business. For example, if your home office occupies 20% of your home’s total area, you can deduct 20% of these expenses. Eligible expenses include:
- Rent or Mortgage Interest: Deduct the portion of rent or mortgage interest corresponding to your home office space.
- Utilities: Expenses such as electricity, heating, and water used for business purposes are deductible.
- Property Taxes and Insurance: Claim the business-use portion of property taxes and home insurance premiums.
- Maintenance and Repairs: Costs for cleaning and minor repairs related to your home office are deductible.
- Telephone and Internet Services: If your business requires telephone and internet services, you can deduct a portion of these home expenses for business purposes.
2. Office/Business Space Rent and Utilities
Not working from home? No problem! The rent paid for office space or business location, associated utilities and other office expenses are deductible. This includes:
- Office/Location Rental Payments: Deduct rent for the space used to earn business income. Whether that’s an office, a shop, a kitchen – if you earn your money there, you can deduct it!
- Property Taxes and Insurance: Claim expenses related to the rented property.
- Utilities: Expenses such as electricity, internet, and phone services used for business are deductible.
- General Office Maintenance, renovations and upkeep: Expenses to maintain your rental or leased space are also deductible if they are not included in your rental agreement or paid for by your landlord.
3. Vehicle Expenses
If your business requires you to hit the road, you can deduct vehicle expenses based on how much the vehicle is used for business. Keep detailed records of business mileage to support your claim. Costs for a company-owned vehicle are deductible, and if you use your personal vehicle for business, a portion of those expenses may also qualify. Eligible expenses include:
- Fuel Costs: Deduct gasoline, diesel, or propane expenses used for business travel.
- Maintenance and Repairs: Costs for servicing and repairing your vehicle for business use are deductible.
- Insurance: Claim the portion of your vehicle insurance related to business use.
- Lease Payments or Depreciation on Company-owned vehicles: Deduct lease costs or claim Capital Cost Allowance (CCA) for company-owned vehicles. Scroll down for more info on CCA.
4. Meals and Entertainment
Expenses for meals and entertainment are 50% deductible when directly related to business activities. This includes expenses incurred while traveling, attending seminars, conferences, or conventions, or even taking clients out for lunch.
- Client Meetings: Meals and entertainment expenses incurred while meeting with clients are deductible at 50%.
- Travel: Meals and entertainment expenses incurred while traveling for business are deductible at 50%.
5. Travel Expenses
Traveling for business? Not only can it expand your professional horizons, but it can also offer some helpful tax breaks. Here’s what you need to know:
- Transportation Costs: Whether it’s airfare, train tickets, bus fares, or car rentals, if you’re traveling for business, these expenses are generally deductible. Just ensure that the travel is primarily for business purposes.
- Accommodation: Overnight stays for business trips are deductible. This includes hotel expenses and any associated fees.
- Meals: While on a business trip, you can deduct 50% of your meal expenses.
- Other Expenses: Additional costs like parking fees, baggage fees, and other incidentals incurred during business travel are also deductible. Keep all receipts and note the business purpose of each expense.
6. Office Supplies
Keeping your office stocked with essentials doesn’t just keep things running smoothly, it can also keep your tax bill in check. Here’s what you need to know:
- What Qualifies: Items like pens, pencils, paper clips, stationery, stamps, and envelopes are considered office expenses and are fully deductible.
- What Doesn’t Qualify: It’s important to understand the difference between business expenses and assets when it comes to tax deductions. Everyday items like office supplies are typically expensed in the year they’re purchased, meaning you can deduct the full cost right away. Larger purchases—such as office furniture, computers, or equipment—are considered capital assets. While these are also deductible, they’re claimed over time through Capital Cost Allowance (CCA), which spreads the deduction across several years. Knowing the difference helps you file accurately and take full advantage of what you’re entitled to. Read on to learn more about CCA.
- Cleaning Supplies: If you purchase cleaning materials specifically for your office space, these are also deductible as office expenses.
7. Training and Professional Development
Investing in training and professional development for yourself and your team can lead to both growth and savings. Many of these expenses are tax-deductible, so you can reduce your taxable income while enhancing your skills and knowledge. Here’s what qualifies:
- Training Costs: Courses, workshops, seminars, and webinars related to your business are deductible. This includes any registration fees, course materials, and travel expenses incurred if the training is outside your regular place of business.
- Professional Development: Expenses related to industry-specific certifications, memberships, and ongoing professional development are also deductible. Whether you’re subscribing to industry magazines or attending conferences, the costs can be claimed.
8. Advertising and Promotion
Expenses incurred to promote your business are deductible too, such as:
- Online Advertising: Costs for digital ads, including social media and search engine promotions.
- Print Advertising: Expenses for ads in newspapers, magazines, or trade publications.
- Promotional Materials: Costs for business cards, brochures, and other marketing materials.
9. Capital Cost Allowance (CCA)
When you buy assets like furniture, equipment, or even big-ticket items like a vehicle, the CRA lets you claim a portion of their cost over time through Capital Cost Allowance (CCA). This means you can gradually reduce the cost of these items each year instead of claiming them all at once. Think of it as a long-term tax benefit for your long-term investments. Find more information about it here.
10. Professional Fees
Need a lawyer to help you navigate that tricky contract? Or an accountant to sort through your financial statements? Good news! Those fees are deductible, including:
- Accounting and Legal Fees: Costs for professional advice, record-keeping, and tax preparation are deductible.
- Consulting Fees: Expenses for external consulting services related to your business operations are deductible.
11. Business Taxes, Licenses, and Memberships
You can deduct:
- Business Taxes: Municipal property taxes and other business-related taxes are deductible.
- Licenses and Permits: Fees for licenses required to operate your business are deductible.
- Membership Dues: Annual fees for trade or commercial associations related to your business are deductible.
12. Interest and Bank Charges
Interest paid on loans used for business purposes is deductible. This includes:
- Business Loans: Interest on loans taken to finance business operations or purchase assets is deductible.
- Bank Fees: Charges for business bank accounts, including monthly fees and transaction costs, are deductible.
13. Insurance
It’s a must-have for any business. Good news: it’s also deductible! Some common types that are deductible include:
- Property Insurance: Coverage for buildings and equipment used in your business.
- Liability Insurance: Protection against legal claims related to your business operations.
- Workers’ Compensation: Insurance to protect your employees.
14. Employee Salaries and Benefits
This may be one of the largest expenses in your business. Here’s a breakdown of what you can claim:
- Salaries and Wages: The wages you pay to your employees are fully deductible as a business expense. This includes hourly wages, salaries, overtime, and bonuses, for both you and your employees. Please note that shareholder dividends are not considered wages and do not have the same tax benefits as salaries and wages. Please consult an accountant or financial advisor to determine the best option for you and your business. Watch our recorded webinar, Salary vs. Dividends: How to Pay Yourself as a Business Owner to learn more.
- Employee Benefits: The cost of benefits you provide to employees – like health insurance, dental plans, and pension contributions – is deductible.
- Payroll Taxes: Employers are required to contribute to the Canada Pension Plan (CPP) and Employment Insurance (EI) for their employees. These contributions are deductible expenses for your business.
- Other Employee Perks: In some cases, other benefits you provide to employees – like subsidized gym memberships or wellness programs – may also be deductible, depending on the nature of the perk. Be sure to confirm the deductibility with your tax professional.
15. Charitable Donations
Giving back feels good, and an added bonus is that charitable donations can also provide a tax break for your business.
- Monetary Donations: Cash donations made to registered charities are deductible. Your business can claim donations up to a certain percentage of its taxable income. Make sure the charity is registered with the Canada Revenue Agency (CRA).
- In-Kind Donations: Donating goods or services can also be deducted, but it’s important to properly value these items to reflect their fair market value. For example, if you donate inventory or equipment, you can claim their value as a deduction. Consult with your accountant or tax preparer for more information.
16. Input Tax Credits (ITCs)
If your business earned more than $30,000 annually and you collected GST, you can claim GST credits on your expenses. These credits are known as Input Tax Credits (ITCs), and they can help reduce the amount of GST you remit to the CRA. When you purchase goods or services for your business that are subject to GST, you can claim the GST paid as an Input Tax Credit. This means that if you’ve paid GST on supplies, office equipment, or even utilities, you can claim it back, effectively reducing your overall tax burden. Learn more about ITCs.
17. Important – Keep your receipts!
Keeping receipts is crucial when claiming business expenses, as they serve as your proof if Canada Revenue Agency (CRA) comes calling. Without proper documentation, it’s nearly impossible to verify your claims, and the CRA may deny those deductions, leaving you on the hook for taxes owed, plus interest or penalties. Receipts should clearly show the date, amount, vendor, and a brief description of the item or service purchased. For added protection, consider digitizing your receipts and organizing them by category or month. Good recordkeeping not only supports your claims but also makes tax season smoother and stress-free.
Tax season doesn’t have to be stressful when you have an understanding of what you can deduct. From office space to vehicle expenses, the right deductions can save you a significant amount. Keep in mind, this guide only scratches the surface. For a deeper dive into small business taxes, check out our recorded webinar, Small Business Taxes: Deductions, Deadlines and Dollars, hosted by Vartika Satija, CPA, CA.
To ensure you’re getting the most out of your deductions and staying on the right side of the CRA, it’s wise to speak with a tax professional. Your business structure and personal situation can significantly impact what you can and cannot claim.
Sources:
Business Development Bank of Canada (BDC) – A Simple Guide to Tax Deductible Business Expenses
Canada Revenue Agency (CRA) – Personal income tax – Claiming deductions, credits, and expenses
Canada Revenue Agency (CRA) – Small Businesses and Self-Employed Income
Richardson Miller LLP – Top 11 Tax Write-Offs for Small Businesses in Alberta
Canada Revenue Agency (CRA) – Expenses section of Form T2125
Canada Revenue Agency (CRA) – Business Use of Home Expenses
Canada Revenue Agency (CRA) – Business Expenses
Canada Revenue Agency (CRA) – Input Tax Credits
Canada Revenue Agency (CRA) – Claiming Capital Cost Allowance (CCA)
Business Link Webinar – Small Business Taxes – Deductions, Deadlines & Dollars