RRSP Tax Deduction Explained
How much an RRSP contribution saves, the 2026 deadline, and when it makes sense.
The short version
- RRSP contributions are deducted from your income, so they save tax at your marginal rate: roughly 19% to 54% of each dollar, depending on income and province.
- The deadline for 2026 deductions is March 1, 2027.
- Your limit is on your notice of assessment and in My Account: 18% of last year's earned income, up to $33,810 for 2026, plus unused room, minus pension adjustments.
- You don't have to deduct a contribution the year you make it. Saving the deduction for a higher-income year can be worth more.
- It's a deferral, not a gift. Withdrawals are taxed as income later.
RRSP Tax Deduction: How Much Does It Save?
The RRSP is the closest thing the tax system has to a time machine. You take income from a year when your tax rate is high and move it to a year (usually retirement) when your rate should be lower. The deduction is what you get today; the tax is what you pay later. Whether it's a good deal depends almost entirely on the gap between those two rates.
Want the exact number? The RRSP tax savings calculator works out your refund for any contribution, in any province.
What a Contribution Saves
A deduction reduces taxable income, so it saves tax at your marginal tax rate. Approximate federal plus Ontario savings on a $5,000 contribution in 2026:
| Taxable income | Marginal rate (about) | Tax saved on $5,000 |
|---|---|---|
| $45,000 | 19% | about $950 |
| $75,000 | 30% | about $1,500 |
| $100,000 | 31.5% | about $1,574 |
| $150,000 | 43% | about $2,150 |
Rough figures for illustration; your province and the exact bracket matter. If a contribution crosses a bracket line, part of it saves at the lower rate. The brackets are on Canadian income tax brackets.
How the Deduction Works
- Contribute during the year or in the first 60 days of the next one (by March 1, 2027 for 2026).
- Get the receipt from your bank or broker.
- Claim it on line 20800 through Schedule 7, up to your deduction limit.
- Or don't, yet. You can report the contribution and carry the deduction forward to a later year, when your income (and your marginal rate) is higher.
The limit comes from your notice of assessment; how it's calculated is on RRSP contribution limit explained. Going over by more than $2,000 costs 1% a month; see RRSP overcontribution.
Should you contribute to your RRSP this year?
Give the assistant your income, province and the amount you're thinking about. It compares an RRSP with a TFSA for you and tells you whether to deduct now or carry it forward.
When an RRSP Deduction Makes Sense, and When It Doesn't
- Good: high income now, lower income expected in retirement. The classic case.
- Good: income in a benefit phase-out range. The deduction lowers net income, which can raise the Canada Child Benefit or reduce the OAS clawback, so the real saving is higher than the bracket rate.
- Less good: low income now. A deduction at 20% that's taxed at 30% in retirement loses money. A TFSA is usually better.
- Buying a first home? Look at the FHSA first: deductible going in and tax-free coming out.
Spousal RRSPs
You can contribute to an RRSP in your spouse's name and take the deduction yourself, using your room. Later, the withdrawals are taxed in your spouse's hands, which can even out retirement income. The catch: if your spouse withdraws within three calendar years of your last spousal contribution, the withdrawal is taxed back to you.
Withdrawals Are Taxed
RRSP withdrawals are added to income in the year you take them, and the bank withholds 10% to 30% up front (outside Quebec), which is often less than the real tax; see RRSP withdrawals and tax. Exceptions: the Home Buyers' Plan and Lifelong Learning Plan, which you repay. By the end of the year you turn 71, the RRSP must be converted to a RRIF or annuity, or cashed out; see converting an RRSP to a RRIF. If a withdrawal left you owing in April, see why do I owe taxes this year.
Five RRSP Rules of Thumb
- Use the limit on your latest notice, not a guess.
- Contribute in high-income years; withdraw in low-income years.
- Carry the deduction forward if this year's income is unusually low.
- Don't spend the refund. Put it in a TFSA or back into the RRSP, or the strategy doesn't work.
- Check the deduction before you file. Return Check compares your RRSP claim with your limit and receipts; an over-claimed deduction is one of CRA's routine adjustments.
RRSP Deduction Questions
How much tax will I save with an RRSP contribution?
An RRSP deduction saves tax at your marginal rate. At about 30%, a $5,000 contribution saves roughly $1,500. The exact amount depends on your income and province.
What is the RRSP deadline for the 2026 tax year?
March 1, 2027. Contributions made in 2026 or in the first 60 days of 2027 can be deducted on the 2026 return.
Do I have to deduct my RRSP contribution in the same year?
No. You must report the contribution, but you can carry the deduction forward to a later year when your marginal rate is higher.
What is the maximum RRSP contribution for 2026?
18% of your 2025 earned income, up to $33,810, minus any pension adjustment, plus unused room from earlier years. Your exact limit is on your notice of assessment.
Are RRSP withdrawals taxable?
Yes. Withdrawals are taxed as income in the year you take them, except Home Buyers' Plan and Lifelong Learning Plan withdrawals, which are repaid.
Sources: CRA, RRSPs and related plans; MP, DB, RRSP, DPSP, ALDA, TFSA limits and the YMPE; Guide T4040 RRSPs and other registered plans for retirement. Savings figures are approximate, calculated by us for an Ontario resident with ordinary income. Checked October 2026.
Last reviewed October 5, 2026 against CRA and Government of Canada sources. How we check our facts.