RRSP Tax Refund Calculator (2026)
The 2026 tax refund an RRSP contribution produces in any province or territory, bracket by bracket — with your marginal rate before and after, the net cost, a contribution-room check, and RRSP vs TFSA growth after withdrawal tax.
How it works
refund = tax(income) − tax(income − contribution), each run through the 2026 federal and provincial brackets and credits net cost = contribution − refund · relief rate = refund ÷ contribution RRSP after tax = contribution × (1 + r)^years × (1 − withdrawal tax rate) · TFSA = net cost × (1 + r)^years 2026 limit = min(18% × 2025 earned income, $33,810) − pension adjustment + unused room
An RRSP contribution is deducted from taxable income, so the government hands back the tax you would have paid on those dollars — your marginal rate, about 30% for a middle earner in Ontario and over 50% at the top. Because the calculator re-runs the full 2026 federal and provincial calculation with and without the deduction, it catches a contribution that pulls you into a lower bracket; the slice table shows exactly what each part of the contribution earns. The money then grows untaxed and is taxed as income when withdrawn, ideally at a lower retirement rate. The fair comparison is with a TFSA holding the same after-refund cost: the RRSP comes out ahead when your withdrawal tax rate is lower than today’s relief rate, and the two are equal when the rates match. Reinvesting the refund (the gross-up) is how you capture the full benefit.
Worked example
An Ontario employee with $95,000 of 2026 income contributes $10,000. After the enhanced CPP deduction, taxable income falls from $93,873 to $83,873 — all inside the 29.65% combined bracket — so tax drops from $18,516 to $15,551 and the refund is $2,965. The contribution really costs $7,035. Left for 25 years at 6% it grows to about $42,900. With $45,000 of retirement income, withdrawals are taxed at about 23.4%, leaving about $32,900 — versus about $30,200 if the $7,035 had gone into a TFSA, an RRSP advantage of about $2,700. Reinvesting the refund too ($12,965 in total) would grow to about $55,600 before tax.
Sources: CRA — Canadian income tax rates for individuals, current year (2026) · CRA — T4127 Payroll Deductions Formulas, 122nd edition (January 1, 2026) · CIBC RRSP calculator (2026 limit of $33,810) · Revenu Québec — Principal changes for 2026
Frequently asked questions
RRSP or TFSA?
Compare today’s relief rate with the tax rate you expect on withdrawals. If you will pay less tax in retirement, the RRSP wins; if more (or you may need the money sooner), the TFSA wins. The calculator estimates the withdrawal rate from your retirement income, or you can enter your own under More options.
When do I get the refund?
When you file your 2026 return in spring 2027. You can also ask the CRA (form T1213) to reduce the tax taken from each paycheque so the saving arrives during the year.
What is my 2026 RRSP limit?
18% of your 2025 earned income up to $33,810, minus any pension adjustment, plus unused room from earlier years. Your Notice of Assessment shows the exact figure. Contributions up to March 1, 2027 can be deducted for 2026.
Should I deduct it all this year?
Not always. If the contribution takes you into a lower bracket, or you expect a raise, you can contribute now and carry part of the deduction forward to a year when it saves more. The refund ladder shows where the rate drops.
Related calculators
Uses 2026 tax-year federal, provincial and territorial figures (CRA payroll formulas T4127, CRA 2026 rates, Revenu Québec). Educational estimate, not tax or investment advice — confirm with CRA or a tax professional.