RRSP Calculator Canada 2026: Tax Refund, Limit and Growth

2026 RRSP limits and deadline at a glance

For the 2026 tax year you can deduct RRSP contributions up to 18% of your 2025 earned income, to a maximum of $33,810, plus unused room from earlier years, minus any pension adjustment. Contributions must be made by March 1, 2027 to count for 2026.

Earned income needed for the full limit is the dollar limit divided by 18%, based on the previous year's income. The RRSP dollar limit for each year has risen with average wages:

An RRSP contribution saves roughly your marginal tax rate on every dollar deducted, as long as the deduction does not take you into a lower bracket. At 2026 rates that ranges from about 20% on modest incomes to over 50% above $258,482 in most provinces.

How RRSP tax savings are calculated

An RRSP tax saving is the difference between your income tax without the contribution and your income tax with it, because a deductible contribution lowers taxable income. The calculator works out both tax bills with your province's 2026 federal and provincial brackets, basic personal amounts, surtaxes and credits, then subtracts one from the other.

As a shortcut, the saving is close to contribution × marginal tax rate. That shortcut overstates the saving when a large contribution crosses into a lower bracket, which is why the calculator computes the full tax both ways rather than multiplying.

Why your province matters

The federal saving is the same in every province, but the provincial part differs. A $10,000 contribution on a $100,000 salary saves $3,729.08 in Nova Scotia but $2,750.00 in Nunavut in 2026, because the provincial rate on that slice of income differs.

Why income level matters

Higher earners save more per dollar. In Ontario a $5,000 contribution saves $1,352.50 on a $50,000 salary, $1,508.29 on $100,000 and $2,491.23 on $250,000.

How to use the RRSP calculator

The RRSP calculator has four tabs and opens on tax savings with an example already worked out. Change any field and the result updates.

1. Tax savings. Choose your province, income type and 2026 income, then the contribution. Add the tax withheld from your pay to see your refund with and without the contribution.
2. Contribution limit. Enter 2025 earned income, the pension adjustment in box 52 of your T4, unused room from your Notice of Assessment and what you have contributed for 2026.
3. Withdrawal tax. Enter a withdrawal and your other income to compare tax withheld at source with the tax you will actually owe.
4. Growth. Enter your balance, yearly contribution, years and a hypothetical return, and an average tax rate for withdrawals in retirement.

Where to find your numbers

Your 2025 Notice of Assessment shows your 2026 RRSP deduction limit and any unused contributions. CRA My Account shows the same figures. Box 52 of your T4 shows your pension adjustment; it is blank if you have no workplace pension.

RRSP tax refund vs tax savings

An RRSP tax saving is how much your contribution lowers your tax bill; a tax refund is how much of the tax already withheld from your pay comes back because you paid more than you owe. A contribution creates a saving every time, but it only becomes a refund if enough tax was withheld.

Example: on an $85,000 Ontario salary with $14,000.00 of tax withheld during 2026, the tax bill without an RRSP is $15,551.05, so $1,551.05 is owed at filing. A $10,000 contribution cuts the bill to $12,586.05, turning that into a refund of $1,413.95. The contribution saved $2,965.00 in both cases; whether it shows up as a refund depends on what was withheld.

Worked examples

Each example uses the same 2026 calculation as the calculator: a single filer with employment income and basic credits.

RRSP tax savings by province: 2026 quick reference

This quick reference shows the tax saved by a $5,000 RRSP contribution in every province and territory at five salaries, using 2026 rates. Quebec figures include the federal abatement.

RRSP contribution limit and deduction room

Your 2026 RRSP deduction limit is unused room carried forward + the lesser of 18% of 2025 earned income or $33,810 − your 2025 pension adjustment. It is personal: two people with the same salary can have very different limits because of past contributions and workplace pensions.

Earned income

Earned income includes salary, net self-employment income, net rental income, taxable support received and some disability payments. It does not include investment income, pension income or RRSP withdrawals.

Pension adjustment

Members of a registered pension plan have a pension adjustment that reduces RRSP room to reflect the pension they earned that year. It is in box 52 of the T4; a large defined benefit pension can leave little RRSP room.

Over-contributions

You can be up to $2,000 over your deduction limit without penalty. Above that, the excess is taxed at 1% a month until you withdraw it or new room absorbs it, and you must file Form T1-OVP. Amounts over your limit are not deductible until you have room.

RRSP contribution deadline and tax year

The RRSP deadline for the 2026 tax year is March 1, 2027, the 60th day of 2027. Contributions made from January 1, 2026 to March 1, 2027 can be deducted on your 2026 return, except any made in the first 60 days of 2026 that you already deducted for 2025.

You do not have to deduct a contribution in the year you make it. Carrying the deduction forward to a year when your income and marginal rate are higher can increase the saving, while the money still grows tax-deferred.

How much should you put in your RRSP?

To get the most tax saved per dollar, contribute down to the top of the next lower tax bracket; every dollar above that saves at a lower rate. The calculator shows that amount: on an $85,000 salary in Ontario, contributing $25,350.00 brings taxable income down to $58,523, where the combined rate falls from 29.65% to 23.15%.

That is a tax rule of thumb, not a full plan. If you expect a higher income later, a TFSA now and an RRSP later can do better; if you need the money within a few years, an RRSP withdrawal is taxed. Employer matching on a group RRSP is effectively an instant return, so contributing enough to get the full match usually comes first.

Project RRSP growth until retirement

Money in an RRSP grows tax-deferred: no tax is paid on interest, dividends or gains until you withdraw. Contributing $10,000 at the start of each year for 25 years at a hypothetical 5% return, starting from $25,000, grows to $585,793.41; after a 25% average tax rate on withdrawals that is $439,345.06.

RRSP vs TFSA

An RRSP gives a deduction now and taxes withdrawals later; a TFSA gives no deduction but never taxes withdrawals. If your tax rate when you withdraw will be lower than your rate today, the RRSP usually wins; if it will be the same or higher, the TFSA does.

For room and growth on the tax-free side, use the TFSA calculator for Canada.

RRSP withdrawals and withholding tax

RRSP withdrawals are added to your income for the year and taxed at your marginal rate. Your financial institution withholds tax at source: 10% on amounts up to $5,000, 20% on $5,000.01 to $15,000 and 30% above $15,000; in Quebec the federal rates are 5%, 10% and 15% plus 14% Quebec tax. Withholding is only a prepayment.

Example: a $10,000 withdrawal on top of a $60,000 Ontario salary has $2,000.00 withheld, but the actual tax on it is $2,965.00, leaving $965.00 to pay at filing. With no other income, a $20,000 withdrawal has $6,000.00 withheld but owes only $604.83, so most of the withholding is refunded.

Home Buyers' Plan and Lifelong Learning Plan

First-time buyers can withdraw up to $60,000 under the Home Buyers' Plan, and students up to $10,000 a year and $20,000 in total under the Lifelong Learning Plan, with no withholding and no tax if repaid on schedule. HBP repayments run over 15 years and LLP repayments over 10; a missed repayment is added to your income for that year.

What changed for 2026

The RRSP dollar limit rose to $33,810 for 2026, up $1,320 from $32,490, and the 2027 limit is already set at $35,390. RRSP savings are worth slightly less on the first $58,523 of income this year because the federal lowest rate fell to 14%, and British Columbia raised its lowest rate to 5.6%.

Common RRSP mistakes

Most RRSP mistakes come from treating the refund as free money or from not checking the deduction limit. Each one below has a cost.

1. Contributing above your limit. More than $2,000 over costs 1% a month on the excess.
2. Spending the refund. The refund is tax deferred, not tax avoided. Investing it, or putting it into a TFSA, keeps the benefit.
3. Ignoring the pension adjustment. A workplace pension can reduce your room to a few thousand dollars.
4. Assuming the same saving in every province. The same contribution can save hundreds of dollars more or less depending on where you live.
5. Overlooking withdrawal tax. Withholding of 10% to 30% is often less than the tax actually due, leaving a balance owing at filing time.
6. Contributing at a low income. At a 20% marginal rate today and a higher rate in retirement, a TFSA usually does better.