RRSP Calculator 2026: Room & Tax Refund

A Registered Retirement Savings Plan (RRSP) is one of Canada's most powerful tax tools: every dollar you contribute (up to your limit) is deducted directly from your taxable income for the year, and the money grows tax-deferred until you withdraw it in retirement, typically at a lower tax bracket. Your new contribution room for 2026 is the lesser of 18% of your 2025 earned income or the annual maximum of $33,810, plus any unused room carried forward from previous years — room accumulates indefinitely if you don't use it.

Why timing and marginal rate matter: because RRSP deductions reduce your taxable income at your marginal rate — the rate on your last dollar earned — contributing when you're in a higher tax bracket (and withdrawing in retirement when you're likely in a lower one) is what makes RRSPs so effective. A $10,000 contribution for someone in a 30% marginal bracket generates roughly a $3,000 refund; the same contribution for someone in a 43% bracket generates roughly $4,300.

Note: Over-contributing beyond your room (past a $2,000 lifetime cushion) triggers a 1% per month CRA penalty tax. This calculator doesn't account for pension adjustments (PA) from employer pension plans, which reduce your actual RRSP room — check your Notice of Assessment for your exact CRA-confirmed limit.

See your full take-home pay after federal and provincial tax, CPP and EI with the Canada income tax calculator.