What to do with your RRSP tax refund: the move most Canadians skip

Your RRSP refund isn't found money. It's your own money the government was holding, returned because you reduced your taxable income. Most Canadians treat it like a bonus and spend it. That's the expensive mistake.

The move that doubles your retirement savings: put the refund back into your RRSP.

Here's why this matters. Say you contribute $5,000 to your RRSP. At $80,000 income in Ontario, your marginal tax rate is roughly 31.5%. That $5,000 contribution gets you a $1,575 refund. Now you have a choice: spend the $1,575 or contribute it back to your RRSP.

If you spend it, you've saved $5,000 for retirement. If you put the $1,575 back into your RRSP, you've actually saved $6,575 - and that extra contribution triggers another refund of about $496. You could reinvest that too, though the amounts get smaller.

The math compounds over time. Someone who reinvests their refunds can end up with roughly twice the retirement savings as someone who spends them, assuming the same initial contribution amounts.

Why most people don't do this

The refund feels separate from the original contribution. You made a smart money decision in January, then in April a cheque shows up that feels unrelated. It's not. The refund is part of the RRSP strategy, not a reward for using it.

There's also the timing issue. You contribute by the March deadline, file your taxes, then get the refund months later when you've moved on to other priorities. The connection gets lost.

The catch with reinvesting

You need RRSP room. If you maxed out your 2025 contribution limit of $32,490, you can't add the refund until next year. But most Canadians aren't maxing out their RRSPs - the average contribution is around $3,000. So for most people, there's room.

The other catch: you need discipline not to spend the refund. TaxSplit.ca will show you exactly how much your refund should be, so you can plan for reinvesting it instead of treating it as surprise money.

When not to reinvest

If you have high-interest debt - credit cards above 20% - pay that first. The guaranteed savings on interest beats the probable returns in an RRSP.

If you haven't started a TFSA, consider that instead. Below about $50,000 income, TFSA contributions often make more sense than additional RRSP contributions, even with reinvested refunds.

If you need the money for something essential - emergency fund, necessary purchases - use it. The reinvestment strategy only works if you can afford not to spend the refund.

Put your RRSP refund back into your RRSP if you have the room and don't need the cash immediately. It's the difference between saving for retirement and actually building wealth for retirement.