Understanding RRSP Contribution Limit: A Beginner’s Guide

Saving and investing in a Registered Retirement Savings Plan (RRSP) can be a smart move for Canadians who want to ensure they have enough money set aside for retirement.

Unlike Tax-Free Savings Accounts (TFSAs), which have set contribution limits, RRSP contribution rules are slightly more complicated. So, we’ve put together a handy guide with everything you need to know about the RRSP contribution room. Before you dive in, be sure you understand how RRSPs work.

What is the RRSP contribution limit?

RRSP contribution room (also referred to as contribution limit) is the maximum amount of money you can put into your RRSP accounts in any given year. You can claim allowable RRSP contributions as a deduction on your annual tax return to lower the amount of taxes you have to pay.

How does the contribution room work for my RRSP?

Each year you work and report your income to the Canada Revenue Agency (CRA), you automatically build new RRSP contribution room.

The amount of new contribution room you get each year is equal to 18% of your earned income (meaning money that you work for, not investment income or government benefits you receive), up to a cap (called the allowable limit) that changes annually.

Heads up: There are penalties for RRSP over-contributions.

How do I know my RRSP contribution limit?

There are 2 ways you can check your RRSP contribution limit:

• Check your Notice of Assessment. After you file your taxes, the Notice of Assessment (NOA) you receive from the CRA will indicate how much contribution room you earned in that tax year, how much room you have remaining from previous years, as well as your total contribution limit for the coming tax year.
• Go online. If you can’t find your assessment from last year, all this information should also be in your CRA My Account in the RRSP and TFSA section.

How do I calculate the RRSP contribution room?

The CRA calculates and keeps track of everyone’s contribution room so you don’t have to.

But if you’re keen on doing your own math to see how much you can contribute to your RRSP this year, or if you simply want to double-check that your Notice of Assessment is correct, here’s a step-by-step guide, along with a couple of examples.

1. Multiply the amount of your annual earned income by 0.18. If the result exceeds the annual RRSP limit ($31,560 for 2024), just use the RRSP limit amount itself.
2. If you have a workplace pension, subtract your annual pension adjustment (you can find this information in Box 52 on the T4 slip from your employer).
3. Finally, add any RRSP contribution room carried forward from previous years.

What is an unused RRSP contribution?

Unused RRSP contributions are any allowable RRSP contributions you made and reported in previous years but have not yet claimed as a tax deduction.

Here’s an example of Ismath’s situation:

1. Ismath made full use of their $12,000 RRSP contribution room in 2024. When they file their taxes, they report this contribution amount on their return but don’t claim a deduction for it.
2. This unclaimed amount of $12,000 is Ismath’s unused RRSP contribution that is carried forward. If you’re wondering why Ismath chose to postpone their deduction, it’s because they happened to get a big raise recently, which increased their income in 2024 to $120,000.
3. They know this new salary will push them into a higher federal tax bracket, so they decide to wait until they file next year’s return to claim the deduction.
4. This increases their tax savings (26% on $12,000, or $3,120 in tax savings—rather than $2,460 in savings based on their 2023 tax bracket of 20.5%).

Take note that “carried forward RRSP contribution room” isn’t the same as “unused contributions,” even if some people might use the terms interchangeably.

How to use unused RRSP contributions?

You can add allowable unused RRSP contributions to your income tax return on Part A of Schedule 7. Then indicate how much of your total RRSP contributions you want to deduct on Part C of the same schedule.

If you’re using TurboTax, the software will do this for you. Our tax experts are also available for support.

How much RRSP can I carry forward?

Any RRSP contribution room you have left is automatically carried forward, which means you don’t have to max out your RRSP contributions each year.

In other words, these amounts continue to roll over into future years—you don’t lose contribution room just because you don’t max out your RRSP contributions in any given year.

So, for instance, if Grace, from our first example, made $20,000 in RRSP contributions in the 2023 tax year, she’d carry forward $15,780 in remaining contribution room into 2024. This would be added to any new contribution room she accumulates (based on her 2023 earned income).

Note, however, that Canadians can’t make new RRSP contributions after the year they turn 71.

What happens if I exceed my RRSP contribution room?

If you put more money into your RRSP than your contribution room allows, you can’t deduct the excess contributions from your taxable income.

Also, if you over-contribute to your RRSP by more than $2,000, you need to take out the excess amount immediately or the CRA will charge you a 1% monthly penalty on those extra funds until you withdraw them.

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