The RRSP: More Than Just A Tax Break

An RRSP contribution reduces your taxable income in the year you make it. That’s the part most people know. What’s less well understood is what happens on the other end: the tax isn’t eliminated, it’s deferred. Every dollar deducted today is a dollar that gets added back to your income - and taxed - when it’s eventually withdrawn. In the meantime, investments inside the RRSP can grow tax-free until withdrawals begin - which is one of the primary benefits of the account.

This is the second post in our series on registered accounts. Last time, we covered the TFSA and why treating it like a savings account costs people real money. This time: the RRSP, what it actually does, and how to actually use the tax benefits to grow your wealth.

What it actually does

An RRSP contribution gets deducted from your income in the year you make it, which lowers your tax bill today. The money then can grow inside the account - no tax on dividends, no tax on capital gains, year after year. The tax bill doesn’t disappear - it is deferred. It waits for you at withdrawal, when the full amount you take out gets added to your income and taxed at whatever rate applies then.

For 2026, you can contribute 18% of last year’s earned income, up to $33,810, reduced by any pension adjustment if you belong to an employer plan. Unused room carries forward indefinitely, same as a TFSA, and contributions made in the first 60 days of the year can still be deducted against the prior year’s return - which is why every February, RRSP deadlines make headlines.

Withdrawals aren’t as simple as pulling cash out of a TFSA. Your financial institution withholds tax immediately - 10% up to $5,000, 20% up to $15,000, 30% above that - and that withholding is just a down payment. Your actual tax owing gets settled when you file, based on your real marginal rate that year. And eventually, the account stops being optional: by December 31 of the year you turn 71, your RRSP has to convert to a RRIF or an annuity, and mandatory minimum withdrawals begin the year after, taxed the same way every other RRSP dollar is.

The part the deduction overshadows

Most people evaluate an RRSP by the refund it generates. That’s the least interesting thing about it.

The bigger advantage is what happens every year after the contribution, quietly, in the background: nothing gets taxed. No annual hit on dividends. No capital gains bill the year you rebalance or trim a position. Every dollar of growth can stay invested and keeps compounding, instead of getting skimmed on the way past. Held in a taxable account, that same portfolio pays tax every single year it produces income or realizes a gain - and each of those payments is capital that’s no longer working for you.

Run it out over thirty years and the difference isn’t small. A portfolio that compounds without annual tax drag ends up meaningfully larger than the identical portfolio held in a taxable account, even before factoring in what the deduction was worth. For a strategy built around holding a collection of high-quality businesses for the long term - which is the only way we invest - that difference compounds on top of itself the longer the position is held.

Who actually benefits most

Anyone earning employment or self-employment income can build RRSP room, and almost everyone gets some benefit from deferring tax on it. But the RRSP has two features worth knowing about beyond the basic deduction.

First-time home buyers can pull up to $60,000 out of an RRSP tax-free through the Home Buyers’ Plan, repayable over 15 years starting two years after the withdrawal - effectively an interest-free loan from your future self, as long as you actually repay it on schedule. A couple can combine two of these for $120,000 toward a first home. Higher earners with a lower-earning spouse can also use a spousal RRSP to shift future retirement income onto the lower earner’s tax return, splitting income in a way that can meaningfully reduce a household’s total tax bill in retirement.

The clearest beneficiary, though, is the person in a high tax bracket today who genuinely expects a lower one in retirement - someone deducting contributions at 45% now and withdrawing later at 25%. That gap is where the RRSP’s deduction advantage lives, on top of the tax-free growth every RRSP holder gets regardless of bracket.

The part that actually matters

The RRSP is a tool whose value depends on comparing today’s tax rate honestly against a realistic estimate of tomorrow’s, rather than evaluating it on this year’s tax savings alone. Contributed thoughtfully, held in good businesses for decades, and withdrawn with some care about which years you draw from it, the RRSP does exactly what it was built to do: let capital compound without tax pulling money out of it along the way.

The deduction is just the opening move. The tax-advantaged compounding is where the magic happens.

Next in this four-part series: the FHSA, and why it might be the best account most eligible Canadians still haven’t opened.

Strata Capital Partners Inc. ("Strata") is registered as a Portfolio Manager in the provinces of Alberta and Saskatchewan. This article is for informational purposes only and does not consider the reader's specific circumstances. It should not be considered tax advice. The information and views provided herein are effective as at the date of publication only and are subject to change. Strata does not undertake to notify the reader of such changes. All investments involve risk, including the potential loss of principal.