You are paying too much tax. Not because the system is rigged against you — but because nobody gave you the full list of what you are allowed to deduct. The CRA has dozens of legitimate deductions that most small business owners never claim because they do not know they exist. That ends today.
Every dollar you deduct reduces your taxable income. If you are in a 30% tax bracket, a $1,000 deduction saves you $300 in real money. A $10,000 in missed deductions? That is $3,000 you gave to the CRA for no reason.
Here is everything you can claim. Bookmark this page.
How Deductions Work (30 Seconds)
Revenue - Deductions = Taxable Income. That is it. The lower your taxable income, the less tax you pay. Deductions are not scams or loopholes — they are the CRA saying "we recognize this is a cost of doing business, so we will not tax you on it."
You need to keep receipts and records for 6 years. If CRA audits you, you need proof. Digital records (photos of receipts, bank statements, accounting software) are accepted. Use Wave or QuickBooks and this becomes automatic.
The Golden Rule
A deduction is valid if the expense was incurred to earn business income. If you can honestly say "I spent this money to make money," it is probably deductible. When in doubt, claim it and let your accountant review.
Home Office Deductions
If you work from home — even part time — you can deduct a portion of your household costs. The CRA offers two methods:
Method 1: Simplified (Flat Rate)
$2 per day worked from home, up to $500/year. No receipts needed. Easy.
Method 2: Detailed (Actual Costs)
Calculate the percentage of your home used for business (square footage of office divided by total home). Apply that percentage to:
- Rent OR mortgage interest (not principal)
- Property tax
- Utilities (heat, electricity, water)
- Home insurance
- Internet (business % or full amount if essential)
- Minor repairs and maintenance
Example: Your office is 150 sq ft in a 1,200 sq ft apartment = 12.5% business use.
Rent: $2,000/month x 12 x 12.5% = $3,000 deduction
Utilities: $200/month x 12 x 12.5% = $300 deduction
Internet: $80/month x 12 x 50% (shared use) = $480 deduction
Total home office deduction: $3,780/year = ~$1,134 in tax savings at 30% bracket.
Vehicle and Travel
If you use your vehicle for business (client meetings, deliveries, job sites), you can deduct the business-use portion:
Option A: Per-Kilometre Method
- First 5,000 km: $0.70/km (2026 rate)
- Each additional km: $0.64/km
- Track with a logbook or app (MileIQ, Driversnote)
Option B: Actual Costs Method
- Gas, insurance, maintenance, parking, lease payments or CCA on purchase price
- Multiply total by your business-use percentage
- Requires a logbook tracking business vs personal km
Also deductible:
- Flights for business travel
- Hotels for business trips
- Uber/taxi to client meetings
- Parking fees for business purposes
- Transit passes (business trips)
The Logbook Trick
CRA requires a logbook for vehicle deductions. Keep one for at least one full year to establish your business-use percentage. After that, you can use a 3-month sample period in future years if your pattern has not changed significantly.
Technology and Equipment
Everything you use to run your business:
- Computer/laptop: Full cost if used 100% for business, or proportional
- Phone: Business percentage of your cell plan
- Software subscriptions: 100% deductible (Office 365, Canva, Slack, Zoom, Adobe, etc.)
- Website hosting and domain: 100% deductible
- Cloud storage: Google Drive, Dropbox, iCloud (business portion)
- Printer, scanner, desk, chair, monitor: Office equipment
- External hard drives, USB drives, cables: Yes, all of it
Capital Cost Allowance (CCA): For items over $500, you may need to depreciate them over multiple years instead of deducting the full cost in year one. Most electronics fall under Class 50 (55% per year). Your accountant handles this — just keep the receipt.
Professional Services
Anyone you pay to help run your business:
- Accountant/bookkeeper: Including year-end tax prep
- Lawyer: Business contracts, incorporation, legal advice
- Virtual assistant: Any contracted help
- Freelancers/contractors: Designers, developers, writers, consultants
- Payroll service: If you have employees
- Business coaching/consulting: Any advisor you pay for business guidance
Marketing and Advertising
Every dollar spent getting customers:
- Google Ads, Facebook Ads, Instagram Ads: 100% deductible
- Website design and development: Full cost
- SEO services: Deductible
- Business cards, brochures, signage: All print marketing
- Social media tools: Hootsuite, Buffer, scheduling apps
- Email marketing: Mailchimp, ConvertKit, etc.
- Photography/videography: For business content
- Directory listings: Including paid directory placements
- Sponsorships: Event or organization sponsorships for visibility
Education and Professional Development
Anything that improves your ability to earn business income:
- Courses and workshops: Online or in-person, if business-related
- Books and audiobooks: Business, finance, industry-specific
- Conferences and seminars: Including travel costs to attend
- Professional certifications: Renewal fees and exam costs
- Industry memberships: Professional associations, chambers of commerce
- Subscriptions: Industry publications, research databases, journals
The key requirement: it must relate to your current business. A web developer taking a coding course? Deductible. That same developer taking a cooking class? Not deductible (unless they are pivoting to a food business).
Insurance, Banking, and Fees
- Business insurance: Liability, professional indemnity, errors and omissions
- Business bank account fees: Monthly fees, transaction fees
- Credit card fees: Annual fee if card is used for business
- Payment processing fees: Stripe, Square, PayPal fees on business transactions
- Interest on business loans: Deductible (principal is not)
- Professional license fees: Any regulatory licensing
- Business permits: Municipal permits, health permits, etc.
Meals and Entertainment
The rule: 50% deductible when the meal has a clear business purpose (meeting with client, prospect, business partner).
- Client lunches and dinners: 50%
- Coffee meetings: 50%
- Team meals (if you have employees): 50%
- Food at a business event you host: 50%
- Your own lunch while working: NOT deductible (that is personal)
Keep the receipt AND note who you met with and what was discussed. "Lunch with Sarah — discussed Q3 marketing plan" is enough.
The Deductions People Miss
These are the ones most small business owners forget to claim:
- Cell phone bill: If you use your phone 60% for business, deduct 60% of the bill. Over a year at $100/month = $720 deduction.
- Home internet: Same logic. $80/month x 50% business use = $480 deduction.
- Music/podcast subscriptions: If you listen while working (Spotify Business, etc.) — arguable but some accountants allow it.
- Parking: Every time you pay for parking for a business reason.
- Postage and shipping: Every package you send for business.
- Office supplies: Pens, paper, sticky notes, ink. Small but adds up.
- Gifts to clients: Deductible up to a reasonable amount.
- Bad debts: Invoices that were never paid? Deductible.
- Moving expenses: If you moved 40+ km closer to a new work location.
- Child care: Not a business deduction per se, but reduces personal taxable income — same effect.
The Annual Deduction Audit
Every December, review your bank and credit card statements. Highlight every transaction that had a business purpose. You will find $2,000-$5,000 in deductions you would have missed. At a 30% tax rate, that is $600-$1,500 back in your pocket.
What You Cannot Deduct
Just so we are clear:
- Personal living expenses (groceries, personal clothing, Netflix)
- Traffic fines or legal penalties
- Political contributions (separate credit, not a business deduction)
- Club memberships for personal use (gym, golf — unless directly entertaining clients)
- The principal portion of loan repayments (interest only)
- CRA penalties and interest on late tax payments
Your Tax Deduction Action Plan
- Start tracking today: Use Wave (free) or QuickBooks. Categorize every business expense as it happens — not at year-end.
- Keep receipts: Photo them with your phone immediately. Apps like Receipt Bank or just a dedicated photo album work.
- Separate your finances: Business bank account + business credit card. Makes tracking automatic.
- Calculate your home office percentage: Measure your office space today. That percentage applies to rent, utilities, internet, insurance.
- Start a vehicle logbook: If you drive for business at all. Even one month of tracking establishes your percentage.
- Review this list quarterly: Bookmark this page. Every 3 months, check if you are claiming everything you are entitled to.
For your full financial picture, use our net worth calculator and check the Canadian money cheat sheet for current tax brackets. If you are still deciding on your business structure, read how much it costs to start a business in Canada and the complete startup guide.
Need help figuring out which deductions apply to your specific situation? Get free AI business coaching and ask about your deductions. And use the business plan generator to map out your finances properly from day one.
Every dollar you do not deduct is a dollar you overpay in tax. Claim what is yours.
About Sarah Patel
Sarah specializes in helping businesses optimize their financial operations and make strategic investment decisions. Her background in both traditional finance and fintech gives her a unique perspective on modern business challenges.
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