How RRSP Contributions Lower Your Tax Bill

What is an RRSP?

A Registered Retirement Savings Plan (RRSP) is one of the most powerful tax-saving tools available to Canadians. When you contribute to an RRSP, you reduce your taxable income dollar-for-dollar — meaning you pay less tax this year while saving for retirement.

How the Tax Deduction Works

Your RRSP contribution is subtracted from your gross income before tax is calculated. For example:

• Gross income: $80,000
• RRSP contribution: $10,000
• Taxable income: $70,000

You only pay tax on $70,000, not $80,000. The tax savings depend on your marginal tax rate — the tax rate on your last dollar of income.

How Much Can You Save?

Income	RRSP Contribution	Approximate Tax Savings
$50,000	$5,000	$1,500 – $1,800
$75,000	$10,000	$3,000 – $3,500
$100,000	$15,000	$4,500 – $5,500
$150,000	$20,000	$7,000 – $9,000

The higher your income, the more you save per dollar contributed, because higher income pushes you into higher tax brackets.

RRSP Contribution Limits for 2026

• Maximum contribution: 18% of your previous year's earned income, up to $32,490 for 2026
• Unused room carries forward — check your CRA Notice of Assessment for your exact limit
• Deadline: March 1, 2027 (for the 2026 tax year)

Key Strategies

• Contribute at higher-income years. If your income varies, contribute more in years when your marginal rate is highest.
• Spousal RRSP. Contribute to your spouse's RRSP to split income in retirement and potentially pay less tax overall.
• Don't over-contribute. The CRA charges a 1% per month penalty on contributions exceeding your limit by more than $2,000.

Try It Yourself

Use the PayCalc calculator to see exactly how an RRSP contribution affects your take-home pay. Enter your salary, then add an RRSP amount in the Advanced section to see the difference.