Your RRSP contribution generates a real tax refund at your actual marginal rate — and that refund is worth meaningfully more if you invest it too, instead of spending it. This shows exactly how much more.
Same contributions, same growth rate. The only difference: what happens to the tax refund each contribution generates.
This uses the real 2026 federal and provincial tax brackets — including surtax for Ontario — applied to your actual income, not a flat assumed percentage. Your refund is the difference between what you'd owe on your income alone versus what you owe after your RRSP contribution reduces your taxable income, calculated at your real marginal rate for each dollar contributed, up to the actual annual deduction limit — the lesser of 18% of your income or the 2026 dollar cap.
Want your real contribution room, employer matching, and this refund math all connected to your actual numbers?
Try the full tool →Deciding between a TFSA and an RRSP first? Read the real answer, not "it depends" →