How much of an RRSP contribution do I get back?

Roughly your marginal tax rate times the contribution. At $85,000 in Ontario the marginal rate is about 29.65%, so a $10,000 contribution saves about $2,965. If the contribution drops you into a lower bracket, the part below the threshold saves less, which the calculator accounts for.

Is the RRSP refund free money?

No. It is tax deferred, not tax avoided. Every dollar you withdraw from an RRSP or RRIF later is taxed as income. The strategy works when your tax rate at withdrawal is lower than your rate today; see the RRSP vs TFSA vs FHSA tool.

What is the RRSP deadline for the 2026 tax year?

March 1, 2027, sixty days after the end of the year. Contributions made from January 1 to March 1, 2027 can be deducted on either the 2026 or the 2027 return.

How much RRSP room do I have?

New room each year is 18% of the previous year's earned income up to the annual dollar limit ($33,810 for 2026), minus any pension adjustment from a workplace plan, plus all unused room from earlier years. The exact figure is on your Notice of Assessment and in CRA My Account.

Should I claim the whole deduction this year?

Not always. You can contribute now and carry the deduction forward to a year when your income and marginal rate are higher, which makes the same contribution worth more. This matters for students, people on parental leave, and anyone expecting a big raise.

What happens if I over-contribute?

There is a lifetime $2,000 cushion with no penalty (but no deduction either). Beyond that, the excess is taxed at 1% per month until withdrawn.

Should I reinvest the refund?

If you want the RRSP to keep pace with a TFSA on an after-tax basis, yes. Reinvesting the refund, or contributing the grossed-up amount shown in the results, is what makes the comparison fair.

How much should I contribute to drop into a lower bracket, or to owe nothing?

Use the buttons under the amount: one sets the contribution that brings your taxable income down to the next lower bracket, the other (once you enter the tax already withheld) sets the amount that makes your tax equal what was withheld, so you neither owe nor get a refund. Contributing past a bracket boundary still saves tax, just at the lower rate.

My group RRSP already comes off my pay. Do I still get a refund?

Usually not for that part. Payroll contributions reduce the tax withheld each cheque, so the saving already happened during the year. Enter them as 'already contributed' so the room check is right, and the refund shown applies to any extra you add yourself.

Should I deduct the contribution this year or carry it forward?

Deduct in the year with the higher marginal rate. If you expect a raise or a return from parental leave next year, contribute now (to start the tax-free growth) but carry the deduction forward; the CRA tracks undeducted contributions on your Notice of Assessment. The slice table shows which part of this year's contribution saves at a lower rate.

Can I get an RRSP loan to make a bigger contribution?

You can, and the refund can repay part of it, but you pay interest on the loan and the benefit is only the tax deferral on the extra amount. It makes most sense when the loan is short (repaid with the refund) and your marginal rate is high.

RRSP Tax Refund Calculator (2026)

See what an RRSP contribution actually puts back in your pocket: the tax it saves, your real out-of-pocket cost, and (if you enter the tax withheld from your pay) the refund cheque it produces. Buttons set the amount that drops you into a lower bracket or wipes out a balance owing, and a slice-by-slice table shows the rate each dollar saves at.

You get back from the CRA$2,965.00A $10,000 contribution saves 29.6% in tax, so it really costs you $7,035. If your employer withheld correctly, that $2,965 is roughly your refund.

Tax refund $2,965What the contribution really costs you $7,035

Income tax without the contribution	$15,551.06
Income tax with the contribution	$12,586.06
Tax saved	$2,965.00
Real cost of the contribution after the refund	$7,035.00
Marginal rate before → after	29.6% → 29.6%
To keep the same real cost, you could contribute	$14,214.64

Deadline. Contribute by March 1, 2027 to deduct it on your 2026 return; anything contributed January 1 to March 1, 2027 can go on either the 2026 or 2027 return. Room you use now comes off the $33,810 limit; unused room carries forward forever.

Show the math

Tax saved = income tax on $85,000.00 minus income tax on $75,000.00, both with the 2026 federal and Ontario brackets, credits, surtaxes and reductions. The slice table re-runs that in $250 steps and groups slices by the rate they saved at, which is how you see where a bracket boundary falls. The refund cheque = tax withheld − tax after the deduction; if payroll under-withheld, the contribution reduces what you owe instead. Withdrawals are taxed later: this is deferral, not a gift.

How to get the refund (or skip waiting for it)

The deduction is claimed on your return; the refund follows. Or stop the over-withholding at source and get it every pay.

Contribute by the first 60 days of the next year (March 1, 2027 for the 2026 return) and keep the receipt; the issuer sends a copy to the CRA.RRSP contribution deadline and limits ↗
Claim the deduction on line 20800 (Schedule 7). You may carry unused contributions forward and deduct them in a higher-income year.
File form T1213 with the CRA to have your employer withhold less all year instead of lending the money to the government.Form T1213, request to reduce tax deductions at source ↗
Check your deduction limit in CRA My Account before contributing; the penalty above the $2,000 buffer is 1% a month.CRA My Account ↗

Common questions

Frequently asked questions

How much of an RRSP contribution do I get back?: Roughly your marginal tax rate times the contribution. At $85,000 in Ontario the marginal rate is about 29.65%, so a $10,000 contribution saves about $2,965. If the contribution drops you into a lower bracket, the part below the threshold saves less, which the calculator accounts for.
Is the RRSP refund free money?: No. It is tax deferred, not tax avoided. Every dollar you withdraw from an RRSP or RRIF later is taxed as income. The strategy works when your tax rate at withdrawal is lower than your rate today; see the RRSP vs TFSA vs FHSA tool.
What is the RRSP deadline for the 2026 tax year?: March 1, 2027, sixty days after the end of the year. Contributions made from January 1 to March 1, 2027 can be deducted on either the 2026 or the 2027 return.
How much RRSP room do I have?: New room each year is 18% of the previous year's earned income up to the annual dollar limit ($33,810 for 2026), minus any pension adjustment from a workplace plan, plus all unused room from earlier years. The exact figure is on your Notice of Assessment and in CRA My Account.
Should I claim the whole deduction this year?: Not always. You can contribute now and carry the deduction forward to a year when your income and marginal rate are higher, which makes the same contribution worth more. This matters for students, people on parental leave, and anyone expecting a big raise.
What happens if I over-contribute?: There is a lifetime $2,000 cushion with no penalty (but no deduction either). Beyond that, the excess is taxed at 1% per month until withdrawn.
Should I reinvest the refund?: If you want the RRSP to keep pace with a TFSA on an after-tax basis, yes. Reinvesting the refund, or contributing the grossed-up amount shown in the results, is what makes the comparison fair.
How much should I contribute to drop into a lower bracket, or to owe nothing?: Use the buttons under the amount: one sets the contribution that brings your taxable income down to the next lower bracket, the other (once you enter the tax already withheld) sets the amount that makes your tax equal what was withheld, so you neither owe nor get a refund. Contributing past a bracket boundary still saves tax, just at the lower rate.
My group RRSP already comes off my pay. Do I still get a refund?: Usually not for that part. Payroll contributions reduce the tax withheld each cheque, so the saving already happened during the year. Enter them as 'already contributed' so the room check is right, and the refund shown applies to any extra you add yourself.
Should I deduct the contribution this year or carry it forward?: Deduct in the year with the higher marginal rate. If you expect a raise or a return from parental leave next year, contribute now (to start the tax-free growth) but carry the deduction forward; the CRA tracks undeducted contributions on your Notice of Assessment. The slice table shows which part of this year's contribution saves at a lower rate.
Can I get an RRSP loan to make a bigger contribution?: You can, and the refund can repay part of it, but you pay interest on the loan and the benefit is only the tax deferral on the extra amount. It makes most sense when the loan is short (repaid with the refund) and your marginal rate is high.

Full guide: how it works, a worked example, every rule and every source Read the guide →

Sources

Every figure on this page comes from one of these primary sources. Data last verified September 7, 2026.

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Data verified for tax year 2026: September 7, 2026 Updated September 7, 2026 By Nishant Malik, founder of GlassLayer