The biggest tax difference between being a contractor and an employee in Canada is CPP: contractors pay both the employer and employee portions (11.90% combined vs 5.95% for employees), effectively doubling the cost. But contractors can deduct business expenses — home office, vehicle, equipment, software, professional development — which often more than offsets the extra CPP. Once contractor income exceeds ~$100,000, incorporating as a CCPC unlocks the small business deduction (12.2% corporate rate) and meaningful tax deferral. CRA’s four-factor test determines your true status regardless of what your contract says.
Employee vs Contractor Overview
Key Differences
Factor
Employee
Contractor
Control
Employer directs work
You control how
Tools
Provided
You provide
Risk
None
Profit/loss
Benefits
Usually
None from client
Taxes
Withheld
You remit
Deductions
Limited
Business expenses
Tax Implications
Employee Taxation
Item
Details
Income tax
Withheld by employer
CPP
Employee portion withheld
Employer pays matching
EI
Employee portion withheld
Employer pays 1.4×
RRSP room
Based on earnings
Contractor Taxation
Item
Details
Income tax
You remit (instalments)
CPP
You pay BOTH portions
2× what employees pay
EI
Not required (optional)
GST/HST
May need to collect/remit
Business expenses
Deductible
CPP Comparison
Employee CPP (2024)
Contribution
Rate
Employee portion
5.95%
Employer portion
5.95%
Your cost
5.95%
Maximum
~$3,867
Contractor CPP (Self-Employed)
Contribution
Rate
Both portions
11.90%
Your cost
11.90%
Maximum
~$7,735
Contractors pay double CPP.
CPP2 (Enhanced)
Earnings above
Additional contribution
Additional tier
Extra CPP applies
Self-employed
Pay both portions
GST/HST Obligations
Registration Threshold
Rule
Revenue over $30K/year
Must register
Under $30K
Optional
If Registered
Responsibility
Charge GST/HST
On invoices
Collect
From clients
Remit
To CRA
Can claim
Input Tax Credits
Example
Invoice
$5,000
GST/HST (13%)
$650
Total billed
$5,650
You remit
$650 (minus ITCs)
Business Expense Deductions
Common Contractor Deductions
Expense
Deductible?
Home office
Yes
Vehicle (business use)
Yes
Equipment/tools
Yes
Software
Yes
Professional development
Yes
Phone/internet
Yes (business portion)
Travel
Yes (for work)
Professional fees
Yes
Accounting
Yes
Home Office Deduction
Method
Calculation
Simplified
$2/day (max $500)
Detailed
% of home used + expenses
Detailed Expenses
Rent/mortgage interest
Proportional
Utilities
Proportional
Insurance
Proportional
Maintenance
Proportional
Vehicle Deduction
Track
Business kilometres
vs personal
Expenses
Gas, insurance, maintenance
Deduct
Business % of expenses
Income Comparison Example
$100,000 Gross Income
Factor
Employee
Contractor
Gross income
$100,000
$100,000
Business expenses
-
($15,000)
Net income
$100,000
$85,000
CPP (employee part)
$3,867
-
CPP (self-employed)
-
$7,735
EI
$1,049
$0
Income tax (approx.)
~$22,000
~$18,500
Benefits (from employer)
~$3,000 value
$0
Analysis: Numbers vary significantly based on actual deductions and tax situation.
CRA’s Four-Factor Test
How CRA Determines Status
1. Control
Employee
Contractor
Employer controls how
You control how
Set hours
Flexible schedule
Supervised
Independent
Specific instructions
General goals
2. Tools and Equipment
Employee
Contractor
Employer provides
You provide
Computer
Your own equipment
Office space
Work from anywhere
Software
Your licenses
3. Financial Risk
Employee
Contractor
Fixed pay
Variable income
No profit/loss
Profit/loss possible
Paid for time
Paid for results
No investment
Your capital at risk
4. Integration
Employee
Contractor
Part of organization
Separate business
Exclusive (usually)
Multiple clients
Company email
Your own
On org chart
Not integrated
Incorporation Option
Why Contractors Incorporate
Benefit
Details
Lower corporate tax
Small business rate ~12.2%
Income splitting
Dividends to family (limited)
Tax deferral
Leave money in corporation
Credibility
May appear more professional
Liability
Some protection
Incorporation Costs
Cost
Approximate
Setup
$1,000-$2,000
Annual accounting
$2,000-$5,000
Corporate tax return
$500-$1,500
When Incorporation Makes Sense
Situation
Incorporate?
Income > $100K
Consider it
Don’t need all income
Yes (deferral)
Short-term contract
Probably not
Liability concerns
Maybe
Low income
Usually not
Benefits Comparison
Employee Benefits
Benefit
Value
Health/dental
$2,000-$5,000/year
Pension/RRSP match
% of salary
Life/disability insurance
Varies
Vacation pay
Required by law
Sick days
Often provided
EI eligibility
Yes
Contractor Benefits
Benefit
Value
From client
None
Must purchase
Your own insurance
The Bottom Line
If you’re genuinely a contractor (you control how work is done, use your own tools, bear financial risk, and serve multiple clients), the tax advantages can be significant: deductible business expenses, GST/HST input tax credits, and the option to incorporate for tax deferral at higher income levels. The downsides are real — double CPP, no employer benefits, and the responsibility of quarterly instalments and bookkeeping. If your income exceeds $100,000 and you don’t need all of it for living expenses, talk to an accountant about incorporation. Below that level, operating as a sole proprietor with careful expense tracking usually makes more sense.
| No EI | Unless opted in |
| No vacation pay | Build into rate |