Here is the honest answer from 20+ years of working with Canadians at every income level: it depends on your situation. But there are clear principles that make the decision much easier.

The Case for Paying Off Your Mortgage First

Your mortgage rate is guaranteed. If you are paying 5.5% interest on your mortgage, paying it down gives you a guaranteed 5.5% return — tax free. No investment can promise you that.

There is also a psychological dimension that gets ignored in most financial conversations. Debt creates stress. For many Canadians, the peace of mind that comes from owning their home outright is worth more than an extra percentage point of investment return. That is a legitimate financial consideration, not a weakness.

Pay the mortgage first if: your mortgage rate is above 5%, you are close to retirement, you have no emergency fund, or the thought of carrying debt keeps you up at night.

The Case for Investing Instead

Historically, a diversified Canadian portfolio — think a simple index fund like XBAL or VBAL — has returned around 6 to 8% annually over the long term. If your mortgage rate is 3.5% and your expected investment return is 7%, the math says invest the difference.

More importantly, time in the market matters enormously. A dollar invested at 35 is worth dramatically more than a dollar invested at 45. Delaying investing to pay off a low-rate mortgage can cost you more in the long run than the interest you saved.

Invest first if: your mortgage rate is below 4.5%, you are under 45, your TFSA and RRSP contribution room is unused, and you have a stable income and emergency fund.

The Smartest Answer: Both

For most working Canadians, the best strategy is a split approach. Make your regular mortgage payment — never skip or reduce it. Then take any extra money and split it: half goes to a lump-sum mortgage payment, half goes into a TFSA invested in a simple index fund.

This approach reduces your debt, builds your wealth, and manages your risk all at once. It is not as mathematically perfect as going all-in on one option, but it is the strategy most Canadians can actually stick to — which matters more than any spreadsheet.

One Variable That Changes Everything

Your tax bracket. If you are in a high income tax bracket, RRSP contributions can generate significant tax refunds that change the entire calculation. A \(10,000 RRSP contribution at a 43% marginal tax rate generates a \)4,300 refund — which you can then use to pay down the mortgage. Suddenly you are doing both at no extra cost.

This is exactly the kind of situation where personalized guidance makes a real difference. The right answer for your specific income, mortgage rate, and timeline is not the same as the right answer for your neighbour.

Get Clarity on Your Specific Situation

WealthOS was built to help everyday Canadians work through exactly these kinds of decisions — without the jargon, without the sales pitch, and without booking an appointment. Answer a few questions and get a clear, personalized path forward.

Try WealthOS free at mywealthos.ca