How to use your RRSP to build maximum retirement wealth, reduce taxes now, and create a tax-efficient income in retirement.
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Open KOHO Free — Code 45ET55JSYAThe Registered Retirement Savings Plan (RRSP) is Canada's primary tax-sheltered retirement vehicle. Contributions reduce your taxable income in the year they're made, and investments inside the RRSP grow tax-deferred until withdrawal. The core advantage: you contribute at your current (higher) marginal tax rate and ideally withdraw at a lower rate in retirement.
| Rule | Details |
|---|---|
| Annual limit | 18% of prior year earned income |
| Maximum 2025 | $31,560 |
| Unused room | Carries forward indefinitely |
| Overcontribution penalty | 1% per month on excess above $2,000 buffer |
| RRSP deadline | First 60 days of following year (Mar 1, 2026 for 2025) |
| Conversion deadline | Must convert to RRIF by Dec 31, year you turn 71 |
The RRSP is most powerful when you contribute in high-income years and withdraw in lower-income retirement years. A $100 RRSP contribution at a 43% marginal rate saves $4,300 in taxes today. If you withdraw the same $100 in retirement at a 20% marginal rate, you pay $2,000 in taxes — a net saving of $2,300 per $100 contributed, before accounting for decades of tax-deferred growth.
An RRSP is an account that can hold many types of investments:
Most financial advisors recommend a diversified portfolio of low-cost index ETFs inside an RRSP for long-term retirement growth.
Two special RRSP programs allow limited withdrawals without immediate taxation:
Contributing to a Spousal RRSP lets the higher-income spouse claim the deduction while the lower-income spouse eventually withdraws the funds at a lower tax rate. This is one of Canada's most effective income-splitting strategies for couples. After a 3-year attribution period, withdrawals are taxed in the spouse's hands.
If you expect a large RRSP balance that would create high mandatory RRIF withdrawals after 71, consider a "meltdown" strategy: withdraw from your RRSP in the years between retirement and age 71 at a lower marginal rate, investing after-tax proceeds in a TFSA or non-registered account. This smooths your taxable income and can reduce the OAS clawback risk.
A simple rule of thumb: if your current marginal tax rate is higher than your expected retirement rate, prioritize RRSP. If it's lower or similar, prioritize TFSA. Most Canadians benefit from maxing both. High earners (43%+ marginal rate) typically prioritize RRSP first.
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