Updated: April 2025  |  bremo.io financial guides

Business Expense Deductions in Canada: What You Can and Can't Claim

One of the biggest financial advantages of self-employment is the ability to deduct legitimate business expenses from your income before tax. Every dollar you deduct in expenses reduces your taxable income — and therefore your tax bill. But the CRA has clear rules about what qualifies, and claiming non-eligible expenses is a common audit trigger.

This guide covers the complete picture of business expense deductions for Canadian freelancers and small business owners.

The Core Rule: Reasonable and Necessary

The CRA allows deductions for expenses that are "reasonable" and "incurred for the purpose of earning business income." This means:

• The expense must have a legitimate business purpose
• The amount must be reasonable relative to the purpose
• You must have documentation (receipts, invoices)
• Personal expenses are not deductible — only the business portion is

Office and Workspace Expenses

Office Supplies

Pens, paper, printer ink, staplers, notebooks — fully deductible if used for business. Keep receipts.

Office Furniture and Equipment

Desks, chairs, filing cabinets used in your business workspace are deductible. Large items may need to be depreciated over several years (Capital Cost Allowance) rather than expensed fully in one year.

Computer and Technology

Laptops, monitors, tablets, external hard drives, and keyboards used for business are deductible. If also used personally, only the business-use portion applies.

Software Subscriptions

Adobe Creative Cloud, Microsoft 365, accounting software (QuickBooks, Wave), project management tools — fully deductible if used for business.

Communication Expenses

Phone

If you use your mobile phone for both personal and business purposes, you can deduct the business-use percentage of your monthly bill. Many freelancers estimate 50–80% business use. Document your reasoning.

Internet

Home internet is deductible to the extent it's used for business. For most home-based freelancers, a portion (typically 50–80%) is claimable. If you have a separate business internet line, it's fully deductible.

Marketing and Advertising

• Website hosting and domain registration
• Website design and development
• Social media advertising (Facebook Ads, Google Ads)
• Business cards and printed materials
• Online directory listings and subscriptions
• Photography for marketing purposes

Professional Fees

• Accountant and tax preparation fees — fully deductible
• Legal fees related to the business — fully deductible
• Bookkeeping services — fully deductible
• Business consultant fees — fully deductible

Insurance

• Professional liability (errors and omissions) insurance — fully deductible
• General business liability insurance — fully deductible
• Commercial property insurance (business assets only) — deductible

Health insurance premiums for yourself are generally not deductible as a business expense (unless through a Health Spending Account structure).

Professional Development and Education

• Courses and workshops directly related to maintaining or improving business skills — deductible
• Books, magazines, and publications relevant to your field — deductible
• Industry conferences and seminars — deductible (travel to attend may also be claimable)
• Professional memberships and dues — deductible

General education to start a new career (e.g., getting a degree in a completely unrelated field) is not deductible as a business expense.

Meals and Entertainment

Client meals and entertainment are only 50% deductible — a longstanding CRA rule. You need to document the business purpose (who you met, what was discussed) and keep the receipt.

Staff parties (if you have employees) are an exception — up to $150 per person per event, fully deductible.

Travel Expenses

• Flights, trains, buses for business travel — fully deductible
• Hotels for business trips — fully deductible
• Taxis and rideshares for business purposes — fully deductible
• Meals while travelling for business — 50% deductible

Mixing a vacation with business travel requires careful separation of costs. Only the business portion is deductible.

Vehicle Expenses

If you use your personal vehicle for business, you can deduct the business-use percentage of total vehicle costs:

• Gas and oil
• Insurance
• Maintenance and repairs
• License and registration
• Capital Cost Allowance (depreciation)
• Lease payments

You must keep a mileage log to support your business-use calculation. Driving from home to a fixed office is not claimable — but client visits, deliveries, and supply runs are.

Bank Charges and Interest

• Business bank account fees — fully deductible
• Credit card annual fees (business card) — deductible
• Interest on business loans — deductible
• Interest on credit cards used for business purchases — deductible

Capital Cost Allowance (Depreciation)

Large assets (computers, vehicles, equipment) that last more than one year are typically depreciated over time through Capital Cost Allowance (CCA) classes rather than being fully deducted in the year of purchase. Different asset types have different CCA rates:

• Computers (Class 50): 55% declining balance per year
• Passenger vehicles (Class 10/10.1): 30% declining balance
• Office furniture and equipment (Class 8): 20% declining balance

What You Cannot Deduct

• Personal living expenses (food, clothing, personal rent)
• Commuting from home to a regular place of work
• Fines and penalties (speeding tickets, CRA penalties)
• Life insurance premiums (generally)
• Personal portion of any mixed-use expense
• Capital expenditures in full (must be depreciated)