An RRSP contribution is deducted from your taxable income, so it saves tax at your marginal rate. In 2026 that is about 18% to 54%, depending on your province and income. A $10,000 contribution on an $85,000 income saves $2,965 in Ontario, $2,820 in BC and $3,612 in Quebec. For 2026 you can deduct up to 18% of your 2025 earned income, to a maximum of $33,810, plus any unused room. Contributions made up to March 1, 2027 count.
How the RRSP Tax Deduction Works
An RRSP contribution is a deduction, not a credit. It comes off your income before tax is calculated, so the tax it saves is taken from your highest bracket first:
- You contribute, say, $5,000 by March 1, 2027 and claim it on line 20800 of your 2026 return.
- Your taxable income falls by $5,000, and so do your federal and provincial tax.
- If your employer already withheld tax on your full salary, the saving comes back as a refund. Otherwise it reduces the balance you owe.
The money isn't tax-free forever. Withdrawals are taxed as income later, ideally when you're in a lower bracket in retirement. See our retirement income tax calculator for the other side of the deal.
RRSP Refund by Income and Province (2026)
Tax saved by a $5,000 RRSP contribution at different taxable incomes, calculated with 2026 federal and provincial brackets:
| Province | $40,000 | $60,000 | $80,000 | $100,000 | $150,000 | $250,000 |
|---|---|---|---|---|---|---|
| Alberta | $1,100 | $1,196 | $1,525 | $1,525 | $1,800 | $2,147 |
| British Columbia | $980 | $1,181 | $1,410 | $1,410 | $2,035 | $2,305 |
| Manitoba | $1,240 | $1,434 | $1,663 | $1,663 | $2,170 | $2,335 |
| New Brunswick | $1,170 | $1,496 | $1,725 | $1,725 | $2,100 | $2,440 |
| Newfoundland & Labrador | $1,135 | $1,521 | $1,750 | $1,815 | $2,090 | $2,455 |
| Nova Scotia | $1,448 | $1,544 | $1,859 | $1,880 | $2,175 | $2,515 |
| Northwest Territories | $995 | $1,226 | $1,455 | $1,455 | $1,910 | $2,167 |
| Nunavut | $900 | $1,122 | $1,375 | $1,375 | $1,750 | $2,040 |
| Ontario | $1,103 | $1,254 | $1,483 | $1,574 | $2,170 | $2,491 |
| Prince Edward Island | $1,374 | $1,470 | $1,855 | $1,855 | $2,250 | $2,465 |
| Quebec | $1,285 | $1,615 | $1,806 | $1,806 | $2,373 | $2,511 |
| Saskatchewan | $1,225 | $1,421 | $1,650 | $1,650 | $1,925 | $2,190 |
| Yukon | $1,020 | $1,154 | $1,475 | $1,475 | $1,845 | $2,111 |
Assumes only the basic personal amount as a credit. Quebec includes the 16.5% federal abatement. Ontario includes the surtax and Ontario Health Premium.
The same $5,000 is worth about twice as much at $250,000 as at $40,000. For lower incomes, a TFSA or FHSA is often the better first choice. You keep the RRSP room and can use it later, when the deduction is worth more.
Worked Example: Ontario, $85,000
Aisha lives in Toronto and has $85,000 of taxable income in 2026. She contributes $10,000 to her RRSP in February 2027 and deducts it on her 2026 return.
| Item | Without RRSP | With $10,000 RRSP |
|---|---|---|
| Taxable income | $85,000 | $75,000 |
| Federal tax | $11,318 | $9,268 |
| Ontario tax + health premium | $5,662 | $4,747 |
| Total tax | $16,980 | $14,015 |
| Tax saved by the RRSP | $2,965 (29.65% of the contribution) | |
Checking it by hand: the whole $10,000 comes out of the federal 20.5% bracket ($58,523–$117,045), saving $2,050. It also comes out of Ontario's 9.15% bracket ($53,891–$107,785), saving $915. Her Health Premium is $750 at both incomes. $2,050 + $915 = $2,965. So her $10,000 contribution really costs her $7,035.
Contributions that cross a bracket line save less on the part below it. For example, an Albertan on $62,000 who contributes $8,000 saves $2,002. Only the first $3,477 comes out of the 20.5% federal bracket, and the rest saves 14% federally.
2026 RRSP Contribution Limit and the 18% Rule
Your RRSP deduction limit for 2026 is:
- 18% of your 2025 earned income (mainly employment and self-employment income, plus net rental income), up to the 2026 dollar limit of $33,810,
- minus your 2025 pension adjustment (from box 52 of your T4, if you're in a workplace pension plan),
- plus unused room carried forward from earlier years.
You reach the $33,810 maximum with 2025 earned income of about $187,833. The 2025 dollar limit was $32,490. Unused room never expires, so someone who hasn't contributed for years may be able to deduct much more than $33,810 in 2026.
Example: 2025 earned income of $85,000 gives $15,300 of new room (18%). A pension adjustment of $3,500 lowers that to $11,800. With $12,000 carried forward, the 2026 deduction limit is $23,800.
The 60-Day Deadline and Other 2026 RRSP Rules
- Deadline: contributions made in 2026 or in the first 60 days of 2027 can be deducted on your 2026 return. That makes the deadline March 1, 2027.
- You don't have to deduct right away. You can contribute now and carry the deduction forward to a year when your income, and so your marginal rate, is higher.
- Spousal RRSP: you use your own room and get the deduction, but withdrawals are taxed to your spouse. If your spouse withdraws within three calendar years of a contribution, it is taxed to you instead.
- Home Buyers' Plan: first-time buyers can withdraw up to $60,000 tax-free and repay it over 15 years.
- Age 71: you can contribute to your own RRSP until December 31 of the year you turn 71. After that you convert it to a RRIF or an annuity.
Over-Contributions: The $2,000 Buffer
You can go up to $2,000 over your deduction limit without a penalty, but you cannot deduct that extra until you have room for it. Anything above the buffer is taxed at 1% per month until you withdraw it or new room absorbs it, and you must file a T1-OVP return.
Example: with $15,300 of room, a $20,000 contribution is $4,700 over. $2,700 of that is above the buffer, so it costs $27 a month. Only $15,300 can be deducted for 2026. The rest carries forward.
How to Get a Bigger RRSP Refund
- Contribute in a high-income year. A bonus year, or a year when you're in a higher bracket, gives the biggest refund per dollar.
- Stay just below a bracket line. The calculator shows your marginal rate before and after the contribution. If they differ, part of your contribution is saving tax at the lower rate.
- Reinvest the refund. Putting the refund into next year's RRSP or a TFSA makes the deduction work harder.
- Reduce tax at source. Form T1213 asks the CRA to authorise your employer to withhold less tax during the year, so you get the refund in each paycheque instead of in spring.
- Consider a spousal RRSP if your retirement incomes are likely to be very different.
Related Tools & Guides
Frequently Asked Questions
Your marginal tax rate times the contribution. For 2026 that is roughly 18% to 54% depending on province and income. A $10,000 contribution on $85,000 of income saves about $2,965 in Ontario, $2,820 in British Columbia and $3,612 in Quebec. Use the calculator for your own numbers.
18% of your 2025 earned income, up to $33,810, minus your 2025 pension adjustment, plus any unused room from earlier years. Your exact figure is on your 2025 notice of assessment or in CRA My Account.
March 1, 2027. Contributions made in 2026 or in the first 60 days of 2027 can be deducted on your 2026 return.
The contribution is subtracted from your taxable income, and the federal and provincial tax on that amount is removed from your bill. Whether you get it back as a refund depends on how much tax was already withheld from your pay. The saving itself is the contribution times your marginal rate, adjusted for any bracket the contribution crosses.
The first $2,000 over your deduction limit is not penalised, but you cannot deduct it until you have new room. Anything above that is taxed at 1% per month until you withdraw it or new room covers it. You must also file a T1-OVP return.
An RRSP is usually better if your tax rate now is higher than it will be in retirement. A TFSA is usually better at lower incomes, roughly under $55,000, because the deduction is worth less. RRSP room carries forward, so you can save it for higher-earning years.
If you expect a much higher income next year, for example after a promotion or a bonus, you can contribute now and deduct later. The deduction saves tax at the marginal rate of the year you claim it.
Uses 2026 federal and provincial or territorial brackets, basic personal amounts (including the federal phase-down above $181,440), the Ontario surtax and Health Premium, and the Quebec abatement. Other credits (CPP, EI, the Canada employment amount), low-income reductions and benefit clawbacks are not included. They mainly affect incomes below about $25,000. Check your deduction limit in CRA My Account.