How to Use the RRSP Tax Refund Calculator
This free Canadian RRSP tax refund calculator shows how much federal and provincial tax you can save by making RRSP contributions. Select your province, enter your annual income and planned RRSP contribution, and the calculator will apply the current 2026 marginal tax brackets to estimate your tax refund. It also shows your effective tax rate before and after your contribution, so you can see exactly how much each dollar contributed saves you in tax.
How RRSP Tax Deductions Work in Canada
An RRSP contribution reduces your taxable income for the year, which means you pay tax on a lower amount. The tax saving depends on your marginal tax rate, the rate applied to your last dollar of income. Because Canada uses a progressive tax system, higher earners save more per dollar contributed. For example, someone in a 43% combined federal and provincial marginal bracket saves $430 in tax for every $1,000 contributed. The refund you receive is not free money. It is a deferral of tax you will eventually pay when you withdraw from your RRSP, typically in retirement when income levels may differ from your working years.
RRSP Contribution Limits and Deadlines
Your annual RRSP contribution limit is 18% of your previous year's earned income, up to a CRA-set maximum (for 2026, the limit is $33,810). Unused contribution room carries forward indefinitely, so if you have not maximized contributions in prior years you can catch up. The RRSP contribution deadline is 60 days after December 31, meaning contributions made in January or February of a given year can be applied to the prior tax year. Always verify your exact contribution room on your CRA My Account, as over-contributing by more than $2,000 triggers a 1% per month penalty tax.