RRSP Tax Savings Calculator Canada (2026): See Your Refund
Find out, in seconds, how much tax a Registered Retirement Savings Plan contribution could save you. Enter your income, your planned RRSP contribution and your province — the calculator compares your 2026 tax with and without the contribution, and shows your estimated refund, the federal and provincial split, and your effective refund rate.
RRSP Tax Savings Calculator
2026 figures • Federal and provincial brackets, basic personal amounts, Ontario surtax and Ontario Health Premium. Income tax only — CPP and EI are excluded. Estimates only; this is not tax advice.
How RRSP deductions work
An RRSP contribution is deducted from your income before tax is calculated. It does not reduce your pay directly — it reduces your taxable income. If you earn $100,000 and contribute $10,000 to your RRSP, you are taxed as if you earned $90,000. The tax you would have paid on that $10,000 is, in effect, your refund or tax saving.
That is why this calculator uses the tax-difference method: it calculates your 2026 income tax at your full income, calculates it again at your income minus your RRSP contribution, and the difference is your estimated saving. Federal and provincial tax are calculated separately, so you can see how much of the saving comes from Ottawa and how much comes from your province.
Marginal rate vs. effective refund rate
Your marginal tax rate is the tax rate on your last dollar of income. Your effective refund rate is your total saving divided by your contribution. They are often close, but they are not the same.
Take the Ontario example in the calculator: on $100,000 of income, the marginal rate is 31.48% — 20.50% federal plus 9.15% provincial, with the Ontario surtax lifting the provincial part. A $10,000 contribution saves $3,058.30, an effective rate of 30.58%. The effective rate is slightly lower because the Ontario surtax only starts to apply partway through that $10,000 range. When a contribution crosses a tax-bracket boundary, the effective rate falls further, because part of the contribution is taxed at a lower rate. The calculator shows both figures so you are not misled by a single rate.
Worked example: Ontario, $100,000 income, $10,000 RRSP contribution
Using the 2026 figures in this calculator:
- Taxable income after the contribution: $90,000
- Federal tax saving: $2,050.00 — the whole $10,000 sits in the 20.50% federal bracket
- Ontario tax saving: $1,008.30 — 9.15% provincial tax plus the Ontario surtax effect
- Total estimated saving: $3,058.30
- Effective refund rate: 30.58%
- Marginal rate on the last dollar: 31.48%
- Net cost of the $10,000 contribution after the tax saving: $6,941.70
In other words, $10,000 goes into your RRSP, but after the estimated tax saving it costs you about $6,942 out of pocket. The money inside the RRSP then grows tax-deferred until you withdraw it in retirement, when it is taxed as income.
What is the RRSP limit for 2026?
For 2026, the RRSP dollar limit is $33,810. Your personal limit is the lower of 18% of your previous year’s earned income and $33,810, plus any unused contribution room carried forward from earlier years, less any pension adjustment for an employer pension plan. If you are not sure of your exact room, check your latest CRA Notice of Assessment — that is the authoritative figure.
Contributing more than your available room can trigger a 1% per month tax on the excess over a $2,000 lifetime over-contribution allowance, so it is worth checking before you contribute a large amount. The calculator above caps a contribution at your income for the tax calculation, but it does not check your RRSP room. See our guide to the RRSP contribution limit for 2026 for the 18% rule and how to find your room.
Frequently asked questions
How is my RRSP tax refund calculated?
Your tax is calculated twice — once on your full income and once on your income minus your RRSP contribution — using 2026 federal and provincial brackets and basic personal amounts. The difference is your estimated refund. In Ontario, the calculation also includes the Ontario surtax and the Ontario Health Premium where they apply.
Is my refund simply my marginal rate times my contribution?
Only if the whole contribution falls in one tax bracket. If it crosses a bracket boundary, part of it is saved at a lower rate, so the saving is less than the marginal rate times the contribution. That is why the calculator shows an effective refund rate as well as your marginal rate.
Does an RRSP contribution reduce CPP or EI?
No. CPP contributions and EI premiums are calculated on your employment income and are not reduced by an RRSP contribution. This calculator covers income tax only, which is why your take-home pay will not rise by the full refund amount in a single paycheque unless your employer adjusts your tax withholding.
When do I actually get the refund?
Usually when you file your tax return for the year, as a refund or a smaller amount owing. Some employers will reduce the tax withheld from your pay if you give them proof of regular RRSP contributions, which spreads the benefit through the year instead of in one lump sum at tax time.
What if my contribution is larger than my income or my RRSP room?
A contribution cannot deduct more than your income, so the calculator caps it at your income and notes that. Separately, your RRSP room is a CRA limit — contributing above it can attract a penalty tax. Check your Notice of Assessment before making a very large contribution, and read our RRSP deadline guide if you are contributing in the first 60 days of the year.
Does my province really change the answer?
Yes. Provincial rates and brackets differ widely, so the same income and contribution can produce a noticeably different refund in Alberta, Quebec or Nova Scotia than in Ontario. Change the province in the calculator to compare, and see RRSP vs. TFSA if you are deciding which account to fund first. For background, see What Is an RRSP?
Related calculators and guides
- Salary Calculator Canada (2026) — your take-home pay by province.
- Capital Gains Tax Calculator Canada (2026) — tax on the sale of an investment.
- RRSP Contribution Limit 2026 — the $33,810 maximum, the 18% rule and how to find your room.
- All calculators — browse the full set on My Finances Guru.
Disclaimer: This calculator provides an estimate for information only, using 2026 tax brackets and basic personal amounts. It is not tax advice. Your actual refund depends on your full tax situation, including other income, deductions and credits. Check your CRA Notice of Assessment or speak to a tax professional before making a large contribution.
