TFSA vs RRSP · Decision Tool

TFSA or RRSP? It comes down to one honest question.

Both accounts shelter your investments from tax. The difference is when you pay: the RRSP taxes you on the way out, the TFSA on the way in. So the real question is simple — is your tax rate higher today, or will it be higher when you take the money out? This page explains both accounts in plain language, then lets you run your own numbers.

The two accounts The deciding question The calculator Your TFSA room The fine print that changes answers
A young green seedling growing out of a pile of coins

It's rarely either/or

Most people end up using both over a lifetime — the RRSP in high-earning years, the TFSA in lower-earning years and for goals before retirement. The tool below tells you which deserves this year's dollar.

One rule beats the whole debate

If your employer matches contributions to a group RRSP or pension, capture the full match before optimizing anything else. An instant 50–100% return outruns every tax argument on this page.

01 — The two accounts

Same shelter, opposite timing.

Inside either account, your investments grow with no tax on interest, dividends, or capital gains. The names are misleading — neither is really a "savings account," and the real difference isn't what you can hold. It's when the government takes its share.

TFSA

Tax-Free Savings Account

You contribute money you've already paid tax on. From then on, the government is done with it — growth and withdrawals are completely tax-free, forever.

  • Withdrawals are invisible to the tax system — they don't count as income, and don't touch income-tested benefits like OAS or GIS.
  • Withdraw any time, for any reason — and the room comes back the following January 1.
  • Room accrues automatically every year from age 18, whether you open an account or not.

Tends to win when your tax rate is modest today, or you may need the money before retirement.

RRSP

Registered Retirement Savings Plan

You contribute before-tax dollars — the contribution comes off your taxable income, generating a refund at your marginal rate. Tax is deferred until you withdraw, usually in retirement.

  • The deduction is worth more the more you earn — a $10,000 contribution saves ~$4,300 of tax at a 43% marginal rate, but only ~$2,000 at 20%.
  • Withdrawals are fully taxable income — and can reduce income-tested benefits in retirement.
  • Room is 18% of earned income (to an annual maximum), carried forward indefinitely; the plan converts to a RRIF with minimum withdrawals by the end of the year you turn 71.

Tends to win when you earn more today than you'll draw in retirement — deduct at a high rate, repay at a lower one.

02 — The deciding question

Compare your tax rate now vs. later.

Here's the part most articles bury: if your marginal tax rate is the same today and in retirement, the TFSA and RRSP produce exactly the same after-tax result. Mathematically identical. The entire decision rests on the gap between the two rates:

Earning more now than you'll spend later?

RRSP first. Deduct at today's high rate, withdraw at tomorrow's lower one. The gap is pure gain — this is the classic case for peak-earning professionals.

Early career, or a modest income year?

TFSA first. A deduction at 20% is a weak prize. Save the RRSP room — it carries forward — and use it later when your income (and the deduction's value) is higher.

Expecting a modest retirement income?

Lean TFSA — more than the rates suggest. RRSP withdrawals count as income and can claw back GIS (at 50¢+ per dollar) and OAS. TFSA withdrawals never do.

One more honest caveat before the calculator: the RRSP comparison is only fair if you reinvest the tax refund. Spend the refund, and the RRSP's advantage quietly evaporates — the calculator shows you exactly what that costs.

03 — The calculator

Run your own numbers.

Enter what you can save each year in after-tax dollars, pick the income band that matches your situation today and the one you expect in retirement, and compare. The RRSP column grosses up your contribution by the refund — the fair, apples-to-apples comparison.

After-tax dollars — what actually leaves your chequing account each year.
$/ year
Time for the tax timing to compound.
years
Sets your marginal tax rate now. Approximate Ontario combined rates shown.
All income sources: pensions, CPP/OAS, RRIF withdrawals. Most people land lower than their working years.
A balanced portfolio has historically earned in the 4–6% range over long periods. Not guaranteed.
5%
After-tax value when you withdraw
TFSA$0
RRSP — refund reinvested (the fair comparison)$0
RRSP — refund spent (the common mistake)$0
The verdict
—

Assumptions — Deposits at the start of each year, compounding annually at the rate you chose; the same investments and returns in either account; marginal tax rates stay at the band you selected (approximate 2025 Ontario combined federal + provincial rates, indexed annually); the RRSP "fair comparison" contributes your amount grossed up by the refund, i.e. the same after-tax outlay as the TFSA; the full RRSP balance is withdrawn at your retirement marginal rate. Ignores RRSP/TFSA contribution-room limits, OAS/GIS clawbacks (see the fine print below — they strengthen the TFSA case at lower retirement incomes), and provincial differences outside Ontario. Estimates, not guarantees.

04 — Your TFSA room

You probably have more room than you think.

TFSA room has been accumulating for you every year since 2009 — from the year you turned 18 — whether or not you ever opened an account. Withdrawals you've made come back as room the following January 1.

Room starts at 2009 or the year you turned 18, whichever is later.
Lifetime contributions minus withdrawals made before this year. Your exact figure is in CRA My Account.
$
Estimated contribution room today
$0

Assumes you've been a Canadian resident since your room started accruing. The CRA's figure in My Account is the authoritative one.

Note — Annual limits are set each fall; this tool uses the published limits for 2009–2025 and assumes $7,000 for 2026 — confirm the current year's limit with the CRA. Over-contributing attracts a 1%-per-month penalty tax, so verify before making a large catch-up deposit.

05 — The fine print

Four details that change real answers.

The refund isn't free money. An RRSP refund is the tax system returning what you pre-paid — on money it will tax later. Treat it as part of your savings, not a windfall. Reinvesting it (into the RRSP or TFSA) is what makes the RRSP's math work.

Clawbacks are a second tax. In retirement, every dollar of RRIF income can reduce income-tested benefits — GIS shrinks by at least 50¢ per dollar, and OAS is clawed back above ∼$91,000 of income. For lower-income retirees the effective tax on RRSP withdrawals can far exceed the posted rate, making the TFSA decisively better. This is one of the most common — and costly — planning misses.

Deduct now, or deduct later. You can contribute to an RRSP and defer the deduction to a future, higher-income year — sheltering growth immediately while saving the deduction for when it's worth most. A useful move for incomes on the rise.

Couples have an extra lever. A spousal RRSP lets the higher earner take the deduction while retirement income lands in the lower earner's hands — smoothing both partners' tax rates in retirement.

Saving for a first home?

The FHSA takes both sides of this debate and keeps them.

The First Home Savings Account gives first-time buyers an RRSP-style deduction on the way in and a TFSA-style tax-free withdrawal on the way out — up to $8,000 a year, $40,000 lifetime. If a first home is anywhere on your horizon, the FHSA usually deserves the first dollar, ahead of both accounts above — and if no home purchase happens, the balance rolls into your RRSP without using RRSP room.

The accounts are simple. Your life isn't.

Group plans, bonuses, variable income, a business, a spouse's pension — the right split is personal. Bring your numbers to a relaxed, no-obligation conversation and we'll map out where each dollar does the most.

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