Self-Employed Contractor Tax Déductions & Invoicing Canada (2026)

As a self-employed tradesperson or contractor in Canada (plumber, electrician, roofer, HVAC tech, landscaper, handyman, etc.), you can deduct legitimate business expenses from your income. This lowers your taxable income and the tax you owe.

The key is good records — and clean, professional invoices are part of that record-keeping system. They prove income and help you track expenses tied to specific jobs.

This guide covers the most common déductions for Canadian trades, what the CRA expects, and how using a proper invoicing tool makes tax time easier.

Common Deductible Expenses for Self-employed Trades (typical)

Vehicle & Travel

• Gas, oil, maintenance, repairs, insurance, license, registration (business % only)
• Lease or financing payments (business use %)
• Parking and tolls for business
• Note: You can use actual expenses with detailed log OR simplified method (kilometres x rate). Many trades use actual because vehicle costs are high. Keep a mileage log (date, purpose, km).

Tools, Equipment & Supplies

• Hand tools, power tools, ladders, safety gear, testing equipment
• Replacement blades, bits, bits, fittings, small consumables
• Larger equipment (if capitalized or CCA claimed)
• Work clothing with company logo (some limitations on ordinary clothing)

Materials & Subcontractors (Cost of Goods Sold)

• Materials you buy and install or resell on jobs (plumbing fixtures, wire, shingles, refrigerant, etc.)
• Payments to subcontractors (get invoices from them)
• Disposal fees, equipment rentals for jobs

Home Office / Workshop (if you qualify)

• Portion of rent or mortgage interest, property taxes, utilities, insurance, maintenance
• Must be your principal place of business or used exclusively and regularly to meet clients or for admin
• Simplified method or detailed calculation available

Marketing & Admin

• Website, business cards, Google ads, vehicle lettering/wraps, uniforms with logo
• Accounting software, invoicing app subscriptions, phone/internet (business %)
• Office supplies, postage, bank fees for business account
• Professional fees (accountant, lawyer, insurance broker)
• Association dues, licensing, continuing education

Insurance & Benefits

• Commercial general liability, tool insurance, vehicle insurance (business)
• Disability insurance, critical illness (some rules)
• Private health insurance premiums (self-employed deduction on personal return)

Other Common Ones

• Bad debts (invoices you wrote off after reasonable collection efforts)
• Bank and credit card processing fees on business payments
• Safety courses, first aid, WHMIS, fall protection training
• Small gifts or meals for clients/referral sources (50% for meals in most cases)

What You Cannot Deduct (common Traps)

• Personal expenses mixed in (groceries, family vehicle use without log, personal phone without allocation)
• Fines, penalties, parking tickets
• Political or charitable donations (these have other treatments)
• Capital items without proper CCA (capital cost allowance) treatment — talk to your accountant
• Expenses without supporting documents (receipts, invoices, statements)

Record Keeping Requirements (CRA)

• Keep records for at least 6 years.
• For each expense: date, amount, vendor, what it was for, proof of payment.
• For vehicle: detailed log or reliable method to support business %.
• Income: your invoices + bank deposits + statements. This is where professional invoicing helps enormously.

How Clean Invoicing Helps at Tax Time

• Sequential invoice numbers with no gaps prove you reported all income.
• Clear client names and job descriptions help match deposits to work.
• Tax collected (GST/HST/QST) is tracked separately from your revenue — important for net income and for filing your sales tax returns.
• Many accounting software packages and accountants can import invoice data or PDFs more easily than handwritten or spreadsheet chaos.
• When you have a question from CRA ("What was this $4,200 deposit?"), you can pull the exact invoice in seconds.

Tips for Self-employed Trades to Stay Sane at Tax Time

1. Use one business bank account and one business credit card. Run almost everything through them.

2. Invoice every job the same day or next day using a tool that saves clients and line items.

3. Categorize expenses as you go (or weekly). Don't save 400 receipts for December.

4. Take photos of receipts with your phone the day you get them (many apps do this).

5. Separate vehicle use — keep a simple notebook or app log in the truck.

6. Meet with your accountant or bookkeeper quarterly, not just once a year. They can catch issues early.

7. Use an invoicing tool that produces tax-ready reports (by tax type collected, income summary, etc.).

Self-employed vs Incorporated

Many contractors stay sole prop (self-employed) for simplicity, especially early on. Once revenue is consistently high and you have significant risk or want income splitting / corporate tax rates, incorporation becomes worth discussing with an accountant.

The invoicing and deduction principles are similar; the filing forms differ (T2125 for self-employed on personal return vs corporate T2).

Quebec-specific Notes

• Self-employed workers in Québec have additional considerations with Revenu Québec (QST, QPIP, etc.).
• The "travailleur autonome" rules around source déductions and instalments can be different.
• See our existing Québec self-employed invoice pages and the tax guide for more.

Our Tools for Self-employed Contractors

• Free invoice generator: create professional invoices with correct Canadian taxes, no account needed for light use.
• Premium ($8/mo): unlimited invoices, custom logo, email sending, card payments, basic tax reports that help at filing time.
• Line-item tax calculators for quick quoting and verification.

Many self-employed trades start on the free tier and upgrade once they are consistently over 2 invoices per month.

Related Pages

• Canadian Contractor Tax Guide 2026 (registration, charging tax, ITCs)
• How to Get Paid Faster as a Canadian Contractor
• Contractor Invoice Checklist
• Self-employed invoice Québec (existing strong page)
• Success Stories from other self-employed trades