Enter what you want to save, your income and province, and a guess at your tax rate in retirement. The calculator runs the same pre-tax dollars through both accounts and compares the after-tax outcomes — your marginal rate today is measured from the 2025 tax year federal and provincial brackets, surtaxes included.
Your savings decision
How it works. Both routes start with the same pre-tax dollars. The RRSP shelters the full amount, compounds it, and is taxed once at your assumed retirement rate on the way out. The TFSA route pays tax first at your marginal rate today — measured from your actual income and province, not a bracket lookup — then compounds the after-tax amount and comes out untaxed. Growth compounds identically in both, so the entire difference is the two tax rates.
After-tax difference
$0
0% advantage on the same pre-tax dollars
The whole decision is your rate today versus your rate in retirement — make them equal and the two routes finish identical to the dollar. This model ignores benefit clawbacks (GIS and OAS treat RRSP withdrawals as income but not TFSA withdrawals) and employer RRSP matches, either of which can flip the answer.
An estimate is a starting point. Get your real number.
This calculator uses published rates. Your actual position depends on the credits, deductions and structure behind your numbers.
- A professional tax accountant reviews your figures, not a formula
- Fixed quote before any work starts
- You pay after you approve the filing
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The RRSP vs TFSA math
The two accounts are mirror images. An RRSP defers tax: the full pre-tax amount goes in, grows untouched, and is taxed once on the way out. A TFSA prepays it: you contribute after-tax dollars and never pay again. Because growth compounds the same either way, the comparison collapses to a single question — is your marginal rate higher today or in retirement? Higher today favours the RRSP (deduct at the high rate, withdraw at the low one). Lower today — early career, a parental-leave year — favours the TFSA, since prepaying tax at a low rate beats deferring to a higher one. Equal rates make the routes tie exactly.
Retirement income that triggers benefit clawbacks tilts the scale further: RRSP and RRIF withdrawals count as income against GIS and the OAS recovery threshold, while TFSA withdrawals are invisible to both. For most people the practical answer over a working life is both accounts in sequence, which is a tax planning conversation rather than a formula.
What this calculator does not cover
It assumes you have room in whichever account wins — check with the TFSA room calculator — and it does not model employer RRSP matching (free money that usually beats every other consideration), reinvesting the RRSP refund, spousal RRSPs, or the exact clawback zones. It also treats your retirement rate as a single guess you supply. To see what a specific contribution saves you this year, use the RRSP tax savings calculator.
| Situation | Usually better |
|---|---|
| Higher rate now than in retirement | RRSP |
| Lower rate now (early career) | TFSA |
| Expecting GIS/OAS clawback | TFSA |
| Same rate both ends | Equal |
Rates reviewed for the 2025 tax year by Udit Gupta, Founder and Tax Accountant. Federal and provincial rates change annually, and this tool is an estimate for planning rather than tax advice. Confirm current figures before relying on them for a filing.
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Rates and method reviewed by Udit Gupta
Ex Big 4 — Ernst & Young, Deloitte · International & cross-border tax specialist · CPA Canada (In-Depth Tax Program) · Chartered accountant, ICAI & MIA
Udit Gupta has over 15 years of experience helping corporations and business owners with corporate structuring, corporate tax filing, bookkeeping, payroll, GST/HST, cross-border tax and CRA representation. He is Big 4 trained, at Ernst & Young and Deloitte, and qualified as a chartered accountant in India and again in Malaysia. In 2014 he founded his accounting practice to serve entrepreneurs, startups and non-resident business owners across Canada. View full member bio.
The Institute of Chartered Accountants of India — member 521458 · Malaysian Institute of Accountants — member CA 44667 · Ex Big 4: Ernst & Young, Deloitte · CPA Canada (In-Depth Tax Program), completed 19 Dec 2023 · In-Depth GST/HST Part I, 12 Jul 2022 · Part II, 5 Jul 2023
Editorial policy. Every page is researched against primary sources — the Income Tax Act, CRA publications and CPA Canada guidance — and every rate or threshold is stated with the tax year it applies to.
Sources. Canada.ca — Personal income tax · Income Tax Act (Justice Laws Website)