RRSP tax refund calculator

What $10,000 into an RRSP actually returns

In Ontario, on $85,000 of income, contributing $10,000 reduces your tax by $2,846. The real cost of putting that money away is $7,154, not $10,000.

That figure is not $10,000 times a bracket rate. It is measured by running the whole return twice — with the contribution and without it — because a contribution of that size crosses thresholds, and the rate that applies to the first dollar of it is not the rate that applies to the last.

Your marginal rate at that income in Ontario is 29.65%, which is why the relief is worth what it is. The same $10,000 contributed by someone in the bottom band would be worth far less, and by someone at the top far more. An RRSP is worth more the more you earn, which is the part the marketing rarely leads with.

How much you can actually put in

The room a year of income generates is 18% of earned income, capped at $33,810 for 2026 — rising to $35,390 in 2027. On $85,000 that is $15,300.

But that is not your room. Your actual limit is on your notice of assessment, and two things change it: unused room carries forward indefinitely from every year you did not fill it, and a pension adjustment reduces it if you belong to a workplace plan. Someone with a defined-benefit pension can generate almost no new RRSP room at all.

Over-contributing is penalised at 1% a month on the excess above a $2,000 cushion — and that cushion only exists if you were 18 or older. So the notice of assessment is the number to use, not a percentage of your salary.

The penalty is not collected through your ordinary return either: it needs Form T1-OVP, filed and paid within 90 days of the year end. There is one way out of it — withdrawing the excess before the end of the month in which you made it — which is why an over-contribution noticed early costs nothing and one noticed in April costs every month since.

The same contribution, province by province

$10,000 contributed on $85,000 of income, and what it saves in each jurisdiction:

1. Nova Scotia — $3,568 back

2. Prince Edward Island — $3,562 back

3. Quebec — $3,456 back

4. Newfoundland and Labrador — $3,360 back

5. New Brunswick — $3,312 back

6. Manitoba — $3,192 back

7. Saskatchewan — $3,168 back

8. Alberta — $2,928 back

9. Ontario — $2,846 back ← this page

10. Yukon — $2,832 back

11. Northwest Territories — $2,794 back

12. British Columbia — $2,707 back

13. Nunavut — $2,640 back

The spread is $928 on an identical contribution, and it runs the opposite way to what people expect: the relief is worth most where the tax is highest. A province that takes more from your salary also gives more back on an RRSP.

The question the other way round: how much to put in

Most calculators answer "I put in $10,000, what comes back". The question people actually type is the reverse — how much do I need to contribute to get back a particular amount — and it has no formula, because the relief is not linear. A contribution large enough to matter crosses thresholds, so the rate that applies to its last dollar is lower than the rate on its first.

On $85,000 of income in Ontario, to get back:

$1,000 back — contribute $3,514. Real cost to you: $2,514.

$2,500 back — contribute $8,784. Real cost to you: $6,284.

$5,000 back — contribute $17,596. Real cost to you: $12,596.

Those are solved against the same engine the calculator runs, not read off a rate: each one is the smallest contribution that actually produces that refund.

And the one everybody asks about: dropping a bracket. At $85,000 in Ontario it would take $26,477 to bring your taxable income down to the floor of the federal band below — and look what that buys: your combined marginal rate moves from 29.65% to 29.25%, barely 0.4% for a contribution of $26,477.

The reason it moves so little is worth more than the calculation. Federal and provincial brackets do not line up, so falling out of a federal band usually leaves you exactly where you were in the provincial one — and the rate you actually pay is the two added together. There is no single Canadian tax bracket to drop out of.

And even a real drop does less than people expect. Falling below a threshold does not re-tax the income underneath it, because Canada taxes in slices: that money was already charged at the lower rates. The contribution saved 29.65% on the dollars it removed and would have done so wherever it landed. A bracket is a threshold, not a cliff — crossing it changes the rate on the next dollar, and nothing else. The $7,460 that $26,477 returns is almost all just 29.65% of $26,477.

How the refund actually reaches you

There is no RRSP refund as such, and that is the confusion behind the question. You do not claim a refund — you claim a deduction, and the refund is whatever falls out of the return once the deduction has done its work.

The mechanics are short. Your institution issues a contribution receipt. The amount goes on line 20800 of your return — the RRSP deduction line. If you file on paper the receipt is attached; on NETFILE or through a preparer you keep it in case the CRA asks. That is the whole of it.

What turns it into money depends on what your employer already withheld. Payroll deducted tax all year on the assumption that you had no RRSP deduction — because it did not know about one. The deduction makes that withholding too large, and the excess comes back. If your employer had known, there would be no refund and you would have had the money in each paycheque instead.

Which is a real option rather than a rhetorical one: Form T1213 asks the CRA to authorise reduced withholding at source for deductions it can see coming, RRSP contributions among them. Approved, it moves the same money out of April and into your monthly pay. Same total, twelve months earlier. The payroll page has the rest of that mechanism.

Contributions in the first 60 days of the year are the exception worth knowing. They can be deducted against either the year just ended or the current one, your choice — which is what makes the late-February contribution rush a real decision rather than a deadline panic.

A bonus can go straight in, with no tax withheld at all

If your employer pays a bonus and you want it in your RRSP, there is a much better route than taking it in cash and contributing it yourself, and almost nobody uses it.

The CRA's own employers' guide says an RRSP contribution withheld from pay "automatically reduces the remuneration on which you have to deduct tax" — whether it is paid periodically or as a lump sum — as long as the employer has reasonable grounds to believe you can deduct it, which normally means showing them your deduction limit from your notice of assessment.

So on $85,000 in Ontario, a $10,000 bonus, two ways:

Taken as cash and contributed yourself — $2,965 of income tax comes off, so $7,035 reaches you. Put that in the RRSP and the deduction returns $2,086 next April. You end up with $7,035 invested and $2,086 in cash.

Sent straight to the RRSP — $10,000 goes in, with no income tax withheld at all and nothing to wait for. At this income your CPP and EI are already at their annual maximums, so nothing is deducted and the whole bonus arrives.

And it is not the same money, which is the part to get right. Adding the account and the cash together, the direct route leaves you $879 better off. The reason is that the refund in the first route is not the tax that was withheld coming back — it is the relief on a smaller contribution, because you could only contribute what survived the withholding. $2,965 came off and $2,086 returns.

The trade is real, though: the direct route uses $2,965 more of your contribution room, because more money went in. If your room is the binding constraint rather than your cash, that matters.

The one thing the direct route does not dodge is contributions. On a lower salary — $45,000, where the CPP and EI ceilings are not yet reached — the same $10,000 bonus still gives up $758 to CPP and EI on its way in. Income tax is the only thing it avoids.

Claiming it later can be worth more

The contribution and the deduction are two different decisions. You can contribute this year and carry the deduction forward to a year when your marginal rate is higher — after a promotion, or after moving to a province that taxes more.

At $85,000 in Ontario the deduction is worth 29.65%. At $150,000 it would be worth 43.41%. On $10,000 that is a difference of $1,376 for doing nothing but waiting.

The deadline to contribute for a tax year is 60 days into the next one — the first days of March. Missing it does not lose the room, but it does push the relief a full year out.

Where these figures come from

Read off the CRA's own pages, with the date:

CRA — MP, DB, RRSP, DPSP, ALDA, TFSA limits, YMPE and the YAMPE — read 2026-09-07. https://www.canada.ca/en/revenue-agency/services/tax/registered-plans-administrators/pspa/mp-rrsp-dpsp-tfsa-limits-ympe.html

CRA — Tax rates on RRSP withdrawals — read 2026-09-07. https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/rrsps-related-plans/making-withdrawals/tax-rates-on-withdrawals.html

CRA — The Home Buyers' Plan — read 2026-09-22. https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/rrsps-related-plans/what-home-buyers-plan.html

CRA — Lifelong Learning Plan withdrawals — read 2026-09-22. https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/rrsps-related-plans/lifelong-learning-plan/participate.html

CRA — Employers' Guide, Payroll Deductions and Remittances (T4001) — read 2026-09-22. https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4001/employers-guide-payroll-deductions-remittances.html

CRA — First Home Savings Account (FHSA) — read 2026-09-07. https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/first-home-savings-account.html

And what these figures do not cover:

— Quebec withholding is only half here. The 5, 10 and 15 percent shown for Quebec residents is the federal share; Revenu Quebec withholds its own amount on top, and the CRA does not publish that figure — it tells you to ask your institution or Revenu Quebec. So a Quebec withdrawal has more taken at source than the rate shown, and the final tax is worked out the same way regardless.

— Institutions charge their own withdrawal fee on top of the tax, commonly a flat amount per withdrawal, and it is set by each institution rather than by the CRA. No figure for it appears here because there is no single figure to publish.

— Your actual RRSP room is not 18% of this year's income. It is the room the CRA carries on your notice of assessment: unused room from previous years carries forward, and a pension adjustment from a workplace plan reduces it. The figure here is the room a year of this salary generates, not the room you have.

— The Home Buyers' Plan and the Lifelong Learning Plan are described here with their real limits and repayment rules, but neither is modelled in the calculator: the figures above are for an ordinary withdrawal. Missing a scheduled repayment turns that year's instalment into taxable income, and that consequence is not calculated either.

— A withdrawal permanently loses the contribution room it used. That is not a tax cost, so it does not appear in the figures — but it is the part that costs most over a lifetime.

— The FHSA lifetime limit and the rules for carrying unused room forward are not applied; the annual participation room in the first year is what is shown.

Questions

How much will I get back for an RRSP contribution in Ontario?

$2,846 on a $10,000 contribution at $85,000 of income — a real cost of $7,154. It saves tax at your marginal rate of 29.65%, not at a flat percentage.

How much RRSP room do I have?

A year on $85,000 generates $15,300 — 18% of earned income, capped at $33,810 for 2026. Your real limit is on your notice of assessment: unused room carries forward, and a workplace pension reduces it.

Is an RRSP better than a TFSA?

They are opposite decisions. An RRSP deduction is worth your marginal rate now and the money is taxed on the way out; a TFSA gives no deduction and nothing is taxed on the way out. The $7,000 TFSA limit for 2026 wins if you expect a higher rate in retirement than today, and the RRSP wins if you expect a lower one.

How much do I need to contribute to my RRSP to reduce my tax by $2,500?

$8,784 at $85,000 of income in Ontario — a real cost of $6,284. There is no fixed ratio: the relief follows your marginal rate, so the higher your income the smaller the contribution needed for the same refund.

How do I get my RRSP refund?

You do not claim a refund, you claim a deduction, and the refund falls out of it. Your institution sends a contribution receipt; the amount goes on line 20800 of your return. The money comes back because payroll withheld tax all year as though you had no deduction. Form T1213 asks the CRA to reduce that withholding at source instead, which gets you the same money monthly rather than in April.

Can I put a bonus straight into my RRSP?

Yes, and no income tax is withheld when you do. The CRA's employers' guide says an RRSP contribution withheld from pay reduces the remuneration tax is deducted from, lump sums included, provided the employer has reasonable grounds to believe you can deduct it. On $85,000 in Ontario a $10,000 bonus puts $10,000 straight into the account. Take it as cash instead and $7,035 reaches you, which contributed returns $2,086 next April — $879 worse off in total, because the refund is relief on a smaller contribution rather than the withholding coming back.

Will an RRSP contribution put me in a lower tax bracket?

It can — $26,477 at $85,000 in Ontario takes your marginal rate from 29.65% to 29.25% — but it is worth less than it sounds. Canada taxes in slices, so falling below a threshold does not re-tax the income underneath it at a lower rate. The contribution saved 29.65% on the dollars it removed, and it would have done that whether or not it crossed a line.

When is the RRSP deadline?

Sixty days into the following year — the first days of March. You can also contribute now and carry the deduction forward to a year when your rate is higher, which is worth $1,376 on $10,000 if your income goes from $85,000 to $150,000.