Guide
July 16, 2025
Loveneesh Aggarwal

Top 10 Tax Deductions Small Business Owners Often Miss



Introduction
Running a small business in Canada means every dollar counts — and that includes what you save on taxes. Yet, many business owners leave money on the table simply because they’re unaware of all the deductions they’re entitled to claim. Whether you’re in Vernon, Toronto, Edmonton, or anywhere in between, knowing what you can write off can significantly lower your tax bill.
Here are the top 10 tax deductions you might be missing.
1. Home Office Expenses
Deduct a portion of rent/mortgage interest, utilities, internet, and insurance if your home office meets CRA rules.
2. Vehicle Expenses
Deduct the business-use portion of fuel, repairs, insurance, and depreciation.
3. Professional Fees
Accountants, bookkeepers, and legal advisors — yes, you can claim these costs.
4. Meals & Entertainment
50% of eligible business meal costs can be deducted.
5. Advertising & Marketing
Online ads, flyers, website hosting — all count.
6. Bank Charges & Interest
Business account fees and loan interest are deductible.
7. Salaries & Wages
Include benefits and employer CPP/EI contributions.
8. Training & Education
Courses to improve your business skills are claimable.
9. Office Supplies & Equipment
From paper clips to computers, it’s all deductible if business-related.
10. Bad Debts
Write off amounts that can’t be collected after reasonable effort.
Introduction
Running a small business in Canada means every dollar counts — and that includes what you save on taxes. Yet, many business owners leave money on the table simply because they’re unaware of all the deductions they’re entitled to claim. Whether you’re in Vernon, Toronto, Edmonton, or anywhere in between, knowing what you can write off can significantly lower your tax bill.
Here are the top 10 tax deductions you might be missing.
1. Home Office Expenses
Deduct a portion of rent/mortgage interest, utilities, internet, and insurance if your home office meets CRA rules.
2. Vehicle Expenses
Deduct the business-use portion of fuel, repairs, insurance, and depreciation.
3. Professional Fees
Accountants, bookkeepers, and legal advisors — yes, you can claim these costs.
4. Meals & Entertainment
50% of eligible business meal costs can be deducted.
5. Advertising & Marketing
Online ads, flyers, website hosting — all count.
6. Bank Charges & Interest
Business account fees and loan interest are deductible.
7. Salaries & Wages
Include benefits and employer CPP/EI contributions.
8. Training & Education
Courses to improve your business skills are claimable.
9. Office Supplies & Equipment
From paper clips to computers, it’s all deductible if business-related.
10. Bad Debts
Write off amounts that can’t be collected after reasonable effort.