The RRSP is often sold as a tax break. It is more accurate to call it a tax deferral. You deduct your contribution from this year’s income, so you pay less tax now, but every dollar you eventually withdraw in retirement is taxed as ordinary income. The account does not erase the tax. It moves it to later, and it lets your money grow untaxed in between.
Whether that is a good trade comes down to one comparison: your tax rate today versus your tax rate when you withdraw.
The 2026 numbers
Your RRSP contribution room for 2026 is the lesser of two things: 18 percent of your 2025 earned income, or the annual dollar limit of $33,810. On top of that, any unused room from past years carries forward and adds to your total, which is why many people have far more room than a single year’s limit suggests.
One reduction to watch: if you have a workplace pension, a pension adjustment lowers your RRSP room to account for what is already being set aside on your behalf. Your CRA notice of assessment shows your exact available room after all of this.
When the RRSP wins, and when it does not
The RRSP works best when your tax rate is higher now than it will be in retirement. A high earner in their peak years deducts contributions at a marginal rate of 40 percent or more, then draws the money down later at a lower rate. That gap is the real benefit, on top of the tax-free growth.
It works against you when the rates are reversed. Someone early in their career, in a low bracket, who expects to earn more later is deferring tax from a low-rate present into a high-rate future. For them, the TFSA is usually the better first stop, because it has no such asymmetry.
The features people forget
The RRSP is not only for retirement. The Home Buyers’ Plan lets a first-time buyer withdraw up to $60,000 tax-free to put toward a home, repaid over 15 years. The Lifelong Learning Plan allows tax-free withdrawals for education. Both are loans from your own account, not permanent withdrawals.
At the end of the road, an RRSP must be converted to a RRIF (or annuity) by the end of the year you turn 71, at which point minimum annual withdrawals begin. That is a feature to plan around, not a surprise to discover.
The mental model that keeps you out of trouble: the RRSP is a bet that your future tax rate will be lower than today’s. If that bet is right, it is one of the best deals in the tax code. If it is wrong, you may have been better off with a TFSA.
Curious how much RRSP room you have for 2026? The 2026 contribution room calculator estimates it from your income and carry-forward, alongside your TFSA and FHSA.
Sources: CRA — RRSPs and related plans and CRA — RRSP deduction limit.