How RRSP Tax Savings Work

When you contribute to your RRSP, you reduce your taxable income by the amount you contribute. The tax savings depend on your marginal tax rate — the rate applied to your last dollar of income. Higher income means a higher marginal rate and bigger savings per dollar contributed.

Your 2026 RRSP contribution limit is 18% of your previous year's earned income, up to a maximum of $33,810, plus any unused room carried forward from prior years. You can find your exact room on your CRA Notice of Assessment.

RRSPs are tax-deferred, not tax-free. You'll pay tax when you withdraw the money in retirement, ideally at a lower marginal rate. This makes RRSPs most valuable for people in higher tax brackets who expect to be in a lower bracket when they retire.

RRSP vs TFSA: when each one wins

The math people don't realize: if you contribute the same pre-tax dollars to either account and your tax rate is identical now and at retirement, RRSP and TFSA produce the exact same after-tax outcome. The difference comes from rate changes between contribution and withdrawal.

RRSP wins when your marginal rate now is higher than your retirement marginal rate. Classic case: you're earning $90K in Ontario (29.65% marginal), expecting $50K in retirement (29.65% combined? No — closer to 20% combined including OAS clawback math). RRSP wins by ~10 percentage points × the contribution.

TFSA wins when your retirement rate will be higher. This is the case for many young professionals in low-tax brackets today (14–20% combined) who expect to retire on $80K+ from RRSP/CPP/OAS, hitting OAS clawback and 30%+ effective rates. Use our TFSA calculator to compare TFSA growth, or read our deep-dive: RRSP vs TFSA vs FHSA — which first?

The Home Buyers' Plan and Lifelong Learning Plan exceptions

You can withdraw from your RRSP without paying tax in two specific cases:

• Home Buyers' Plan (HBP) — withdraw up to $60,000 ($120,000 for couples) for a first home purchase. Repay over 15 years, starting the second year after withdrawal.
• Lifelong Learning Plan (LLP) — withdraw up to $20,000 ($10,000/yr max) for full-time education for you or your spouse. Repay over 10 years.

If you're a first-time home buyer, also consider the FHSA — it gives you the RRSP deduction without the obligation to repay. For most newcomers stacking both is the optimal play.