As a contractor, you pay both the employer and employee portions of Canada Pension Plan (CPP) contributions, which means you contribute roughly double what a traditional employee does. For 2026, if you're self-employed, you'll pay 11.9% of your net self-employment income up to the maximum contribution limit, compared to employees who split a 5.95% rate with their employer. This higher contribution affects your cash flow planning, tax deductions, and ultimately the retirement benefits you'll receive. When you work as a contractor or are self-employed, the Canada Revenue Agency (CRA) treats you differently than it treats employees. Employees have CPP contributions deducted automatically from their paycheques, split between them and their employer. Contractors don't have an employer, so you're responsible for calculating and paying both sides yourself. Your self-employed CPP contribution is based on your net self-employment income (revenues minus business expenses). You report this income on your tax return, and the CRA calculates what you owe. The key difference is that you get a deduction for half of your CPP contributions on your tax return, which slightly offsets the higher amount you pay. For the 2026 tax year, the CPP contribution rate for self-employed individuals is 11.
If your net self-employment income is $3,500 or more in a year, this CRA rule may apply to you to pay CPP. Contractors must pay both the employer and employee portions, calculated automatically on your tax return.
Yes, you can deduct half of your CPP contributions on line 22200 of your tax return. This reduces your taxable income, providing some tax relief for the higher amount you pay compared to employees.
Higher CPP contributions build stronger CPP credits, which means a larger retirement pension when you turn 65. The CRA uses your best 34 years of contributions to calculate your benefit, so consistent contractor contributions strengthen your pension.
CPP contributions for contractors are typically due by June 15 (the self-employed tax filing deadline). If the CRA requires quarterly instalments, payments are spread throughout the year.
Your CPP contributions adjust automatically based on your annual net self-employment income. Low-income years mean lower contributions, while high-income years mean higher contributions. The system averages your contributions over your career for pension calculation purposes.