5 Tax Deductions Calgary Contractors Miss

Calgary's construction and trades industry is booming, but many contractors are paying more tax than they need to. Whether you're a general contractor, electrician, plumber, or HVAC technician, here are five deductions you might be missing.

1. Vehicle Expenses

If you use your vehicle for work, you can deduct a portion of fuel, insurance, maintenance, and depreciation based on business-use percentage. The key is keeping a mileage log. CRA requires a record of business versus personal kilometres — without it, your claim won't survive an audit.

2. Home Office Deduction

Many contractors run their business from home — quoting jobs, handling invoices, and managing schedules from a home office. If you use a dedicated space regularly for business, you can deduct a proportionate share of rent or mortgage interest, utilities, property tax, and internet.

3. Tool and Equipment Depreciation

Large tool purchases and equipment aren't fully deductible in the year of purchase — they're depreciated over time using CCA (Capital Cost Allowance) classes. However, the Accelerated Investment Incentive allows you to claim a larger deduction in the first year. Many contractors miss this enhanced first-year write-off.

4. Training and Certification

Courses, certifications, safety training (like first aid or fall protection), and trade-school tuition are deductible if they relate to your current business. This includes travel costs to attend training courses outside Calgary.

5. Bad Debts

If a client hasn't paid you and you've exhausted reasonable collection efforts, you can write off the unpaid invoice as a bad debt. Many contractors simply absorb unpaid invoices without claiming the deduction. You can also recover the GST you remitted on that invoice.

Don't Leave Money on the Table

Proper bookkeeping is the foundation of maximising your deductions. When your books are accurate and well-organised, nothing gets missed. Castle Bookkeeping works with dozens of Calgary contractors and trades businesses — we know exactly which deductions apply to your situation.