Retirement is a financial target, not just an age. The goal is to have enough invested that the income it produces, combined with CPP and OAS, replaces what you used to earn. For most Canadians, the RRSP is the most powerful tool for getting there.
What makes the RRSP work so well is the combination of tax deferral and compound growth. Every dollar you put in reduces your taxable income right now, and the full amount grows inside the account without being taxed year after year. The money that would have gone to the government stays invested and keeps compounding. Over 30 years, that gap between tax-deferred and taxable growth becomes significant.
The refund strategy is worth understanding. If you contribute $15,000 and your marginal rate is 40%, you get $6,000 back from the government. If you take that $6,000 and put it straight back into the RRSP, you've amplified the original contribution. Do that consistently over a career and the difference in your final balance is substantial. Spending the refund or saving it outside the RRSP is leaving a meaningful advantage on the table.
The annual contribution limit is 18% of the previous year's earned income, capped at a CRA maximum ($32,490 for 2025). Any room you haven't used in past years carries forward automatically. Your Notice of Assessment from the CRA tells you exactly how much room you have right now.
At 71, your RRSP converts to a RRIF, which requires minimum annual withdrawals. This is worth planning for. Timing those withdrawals to keep your income in lower tax brackets, and coordinating with when you take CPP and OAS, can save a real amount of tax over a retirement that might last 25 or 30 years.
Start early, contribute consistently, and put the refunds back to work. Those three habits, kept up over a career, are what a well-funded retirement is actually built on.