See exactly how much tax an RRSP contribution saves you. This free calculator applies your province’s 2026 marginal rates to show your tax savings, estimated refund, and after-tax income — instantly, for any contribution amount.
✓ Runs on official 2026 CRA rates · Verified against government publications · Last reviewed: July 2026
What This RRSP Calculator Shows You
Enter your income, province, and a contribution amount, and the calculator works out:
- Your tax savings — RRSP contributions are deducted from taxable income, so they save tax at your marginal rate, not your average rate.
- Your estimated refund — if the tax was already withheld from your paycheques, the savings come back to you when you file.
- Your after-tax income — with and without the contribution, so you can see the real out-of-pocket cost.
- Different scenarios — change the contribution amount and instantly compare how each level affects your refund.
2026 RRSP Rules at a Glance
| Rule | 2026 Figure |
|---|---|
| Annual contribution room | 18% of 2025 earned income, up to $33,810 |
| Deadline for the 2026 tax year | March 1, 2027 (first 60 days of 2027 count) |
| Carry-forward of unused room | Unlimited — accumulates since 1991 |
| Overcontribution buffer | $2,000 lifetime; excess taxed at 1% per month |
| Home Buyers’ Plan withdrawal limit | $60,000 per person |
| Deadline to convert RRSP to RRIF | End of the year you turn 71 |
| TFSA limit (for comparison) | $7,000 |
How RRSP Contributions Cut Your Tax Bill
An RRSP contribution reduces your taxable income dollar-for-dollar, which means the savings happen at your marginal rate — the combined federal and provincial rate on your top bracket. Three things follow from that:
- The higher your income, the bigger the saving. With 2026 top combined marginal rates ranging from 44.5% to 54.8% depending on province, each $1,000 contributed can save up to $548 in tax. At a $70,000 income in Ontario (29.65% marginal rate), a $5,000 contribution saves about $1,480.
- Growth is tax-deferred. Investments inside the RRSP compound without annual tax on interest, dividends, or gains — you’re only taxed on withdrawal, ideally at a lower retirement rate.
- The refund isn’t the whole story. The refund is simply the over-withheld tax coming back; the real benefit is the marginal-rate deduction plus decades of tax-deferred growth.
Check your exact marginal rate on our 2026 tax brackets pages, or see your full-year picture with the Income Tax Calculator.
How Much RRSP Room Do You Have?
Your 2026 room is 18% of your 2025 earned income, capped at the CRA dollar limit, plus all unused room carried forward from previous years, minus any pension adjustment if you belong to a workplace pension plan. Two reliable places to find your exact number:
- Your latest Notice of Assessment from the CRA, which states your RRSP deduction limit directly.
- CRA My Account, under RRSP and TFSA limits.
If you’ve been working for years without contributing much, your accumulated room is often far larger than one year’s limit — which makes catch-up contributions in high-income years especially powerful.
RRSP or TFSA: Which Should You Fill First?
The core question is whether your tax rate is higher now or will be higher in retirement:
- RRSP wins when your current marginal rate is high and you expect a lower rate in retirement — you deduct at the high rate now and pay tax at the low rate later.
- TFSA wins when your income (and rate) is modest today — you get no deduction, but every dollar of growth and withdrawal is tax-free, and withdrawals don’t affect income-tested benefits like OAS.
- Many Canadians use both: RRSP in peak earning years, TFSA in lower-income years, and the RRSP refund itself can fund a TFSA contribution.
Withdrawing From an RRSP Before Retirement
RRSP withdrawals are fully taxable as income in the year you take them, and your financial institution withholds tax immediately (rates outside Quebec):
| Withdrawal Amount | Withholding Tax |
|---|---|
| Up to $5,000 | 10% |
| $5,001 to $15,000 | 20% |
| Over $15,000 | 30% |
Quebec residents pay lower federal withholding plus provincial withholding, with a broadly similar total. The withholding is only a prepayment — the final tax depends on your total income for the year. Two programs let you withdraw without immediate tax:
- Home Buyers’ Plan (HBP): up to $60,000 for a first home, repaid to your RRSP over 15 years.
- Lifelong Learning Plan (LLP): up to $10,000 per year ($20,000 total) for full-time education or training, repaid over 10 years.
Five Ways to Get More From Your RRSP
- Contribute through payroll if your employer offers it. At-source deductions reduce tax withheld on every cheque instead of waiting a year for the refund — model the per-paycheque effect with the Payroll Calculator.
- Contribute early in the year, not at the deadline. A January contribution gets 14 extra months of tax-deferred growth compared to a deadline-rush contribution.
- Save contributions for high-income years. You can contribute now but defer the deduction to a future year when your marginal rate is higher — the deduction is worth more then.
- Consider a spousal RRSP if one partner earns much more. The higher earner takes the deduction at their high rate; the lower earner withdraws in retirement at their lower rate.
- Reinvest the refund. Putting the refund into next year’s RRSP or your TFSA compounds the benefit instead of absorbing it into spending.
Frequently Asked Questions
How much RRSP contribution room do I have?
Your 2026 limit is 18% of your 2025 earned income, up to a maximum of $33,810 (CRA dollar limit), plus unused room carried forward from previous years and minus any pension adjustment. Your Notice of Assessment or CRA My Account shows your exact figure.
When is the RRSP contribution deadline?
For the 2026 tax year, the deadline is March 1, 2027 — contributions made in the first 60 days of 2027 can still be deducted on your 2026 return. Anything after that counts toward 2027.
How much tax will I get back from an RRSP contribution?
Roughly your contribution multiplied by your combined marginal tax rate. A $5,000 contribution saves about $1,480 at a 29.65% marginal rate ($70,000 income in Ontario) and about $2,740 at a 54.8% top rate. The calculator above gives your exact number by province and income.
Should I contribute to an RRSP or a TFSA?
RRSPs generally win when your marginal rate today is higher than your expected rate in retirement; TFSAs win at modest incomes and for flexible, tax-free withdrawals. Many Canadians prioritize the RRSP in peak earning years and use the refund to top up a TFSA.
Can I withdraw RRSP money before retirement?
Yes, but withdrawals are fully taxable and face immediate withholding tax of 10% to 30% outside Quebec. The exceptions are the Home Buyers’ Plan (up to $60,000 for a first home) and the Lifelong Learning Plan (up to $20,000 for education), both repaid over time without tax.
What happens if I overcontribute?
The CRA allows a $2,000 lifetime overcontribution buffer. Amounts beyond that are taxed at 1% per month until withdrawn or absorbed by new contribution room.
Do RRSP contributions reduce my CPP and EI deductions too?
No. CPP and EI are calculated on gross employment income before RRSP deductions, so contributions reduce income tax only. Your pensionable and insurable earnings are unaffected.
What happens to my RRSP when I turn 71?
By December 31 of the year you turn 71, you must convert your RRSP to a RRIF, purchase an annuity, or withdraw it (fully taxable). Most people choose a RRIF, which requires minimum annual withdrawals that are taxed as income.
Related Tools on PaycheckGuru
- Canada Income Tax Calculator — your full-year federal and provincial tax picture.
- Payroll Calculator — per-paycheque impact of RRSP payroll deductions.
- Tax Brackets & Marginal Rates — find the marginal rate your RRSP deduction saves at.
- Canada Sales Tax Calculator — GST, HST, and PST by province.
All rates on this page are verified against official Canada Revenue Agency publications.
Last updated: July 19, 2026