Invest your refund: open a Wealthsimple RRSP or TFSA· — commission-free stocks and ETFs, no account minimum.
An RRSP contribution is a deduction from your taxable income, not a tax credit. When you contribute $10,000 to your RRSP, CRA treats your taxable income as $10,000 lower than it otherwise would be. The tax savings equal the amount of tax that $10,000 would have attracted — which depends on which tax brackets it falls in.
Canada's progressive tax system applies higher rates only to the portion of income above each bracket threshold. The portion of your income in the highest bracket is taxed at your marginal rate. Because an RRSP deduction removes income from the top, it typically saves tax at your combined federal + provincial marginal rate.
The exception occurs when your RRSP contribution is large enough to push your income down through a bracket boundary. In that case, the deduction spans two rates — the portion above the threshold saves tax at the higher rate, and the portion below saves tax at the lower rate. This calculator computes tax on both sides by subtraction rather than multiplying by a single marginal rate, so it handles bracket crossings correctly.
Consider an Ontario resident earning $75,000 a year who contributes $10,000 to their RRSP:
Without RRSP: taxable income is $75,000. Federal income tax (after the basic personal amount of $16,129): the income falls in the 20.5% federal bracket ($58,875–$117,750). Ontario provincial tax: the income falls in the 9.15% Ontario bracket ($51,446–$102,894).
With RRSP: taxable income drops to $65,000. The same bracket rates apply — the $10,000 deduction comes entirely from within the top bracket in each jurisdiction.
Refund: $10,000 × (20.5% federal + 9.15% Ontario) = approximately $2,965. Effective savings rate: 29.65%.
Someone earning $130,000 contributing $20,000 would see a smaller effective rate — part of the deduction crosses from the 26% bracket down into the 20.5% bracket. This calculator handles that automatically.
This calculator estimates the income tax savings from your RRSP deduction. Your actual refund depends on taxes already withheld at source throughout the year. If your employer withheld exactly the right amount of tax, the RRSP refund estimate equals your actual refund. If you were over-withheld, your refund will be larger. If under-withheld, it will be smaller. Other deductions and credits on your return also affect the final number.
Your RRSP contribution room is 18% of your prior year's earned income, up to the annual dollar limit ($33,810 for 2026), plus any unused room carried forward from previous years. The exact figure is shown on your Notice of Assessment in CRA My Account. This calculator does not calculate your room — it shows the tax savings from a contribution amount you enter.
RRSP contributions can be deducted for a given tax year if made by 60 days into the following year — typically March 1 or March 2. For the 2026 tax year, the RRSP deadline is March 2, 2027. Contributions made after the deadline count toward the next tax year.
Generally, RRSP contributions make more sense if your marginal tax rate now is higher than what you expect in retirement — the deduction saves tax at your current rate, and withdrawals are taxed at your (lower) retirement rate. TFSAs make more sense if you expect your retirement income to be similar to or higher than today's, or if you need flexibility (TFSA withdrawals restore room; RRSP withdrawals do not). Both are valuable — many Canadians use both.
There is a lifetime over-contribution buffer of $2,000. Beyond that, CRA charges a 1% per month penalty on the excess amount until it is withdrawn. Track your contribution room through CRA My Account or your Notice of Assessment.
Yes. If you belong to a Defined Benefit or Defined Contribution pension plan, a Pension Adjustment (PA) is reported on your T4. This amount reduces your RRSP room for the following year. This calculator does not model pension adjustments — check your Notice of Assessment for your actual available room.
The RRSP tax refund calculator shows the immediate tax savings from a contribution. The RRSP Retirement Projection Calculator shows how your RRSP balance compounds over time to retirement.
Methodology — This calculator uses the same progressive bracket engine as the Take-Home Pay Calculator. Tax is computed as the difference between total tax owing with and without the RRSP deduction. Federal tax for Quebec residents includes the 16.5% federal abatement. Rates and limits are for the 2026 tax year.
