RRSP or TFSA? A decision framework with real 2026 numbers

The core comparison

Growth inside both accounts is untaxed, so the investment return cancels out of the comparison. What remains is one question: is your marginal tax rate today higher or lower than the rate you will pay when the money comes out?

• Higher today: RRSP. You deduct at the high rate and withdraw at the low one.
• Lower today: TFSA. You pay the low rate now and shelter the withdrawal from the higher rate later.
• The same: a tie, provided you invest the RRSP refund rather than spend it.

That last condition is where most real-world RRSP results fall short. A $5,000 RRSP contribution at a 29.65% rate produces $1,483 of tax savings. Unless that $1,483 is also invested, the RRSP holder has less working capital than the TFSA holder and the tie becomes a loss.

Benefits that count RRSP withdrawals as income

The tax-rate comparison is incomplete for anyone who will receive income-tested benefits in retirement, because RRSP and RRIF withdrawals are income and TFSA withdrawals are not.

• Guaranteed Income Supplement (GIS). Paid to lower-income seniors receiving Old Age Security and reduced by 50 cents or more for every dollar of other income. A retiree on GIS who draws $5,000 from an RRIF can lose $2,500 of GIS on top of the income tax. For people who expect to qualify for GIS, the TFSA is usually the better home for savings.
• OAS recovery tax. OAS is clawed back at 15% of net income above a threshold that is indexed each year ($93,454 of 2025 income for the July 2026 payment period). RRIF withdrawals push net income toward it; TFSA withdrawals do not.
• Other income-tested credits such as the GST/HST credit and provincial credits follow the same logic.

Cases that tilt the answer

Employer matching. A workplace RRSP or pension match is an immediate return that neither account can beat on its own. Contribute enough to capture the full match before deciding anything else.

Withholding at withdrawal. RRSP withdrawals outside Quebec are subject to withholding of 10% up to $5,000, 20% from $5,001 to $15,000 and 30% above that. This is a prepayment, not the final tax, but it makes the RRSP a poor emergency fund. Money you might need within a few years belongs in the TFSA.

Home purchase. The FHSA beats both for a first home, and the Home Buyers’ Plan lets RRSP money out tax-free for the same purpose. See the first-home guide.

Very high incomes. At $230,000 of Ontario taxable income the marginal rate is about 49.8%. Almost any retirement rate is lower, so the RRSP deduction is worth a great deal and should normally be used to the limit, with the TFSA filled from the refund.

Spousal income gap. A spousal RRSP lets the higher earner take the deduction while the lower earner reports the eventual withdrawal, subject to the three-year attribution rule. No TFSA equivalent exists, although you may give a spouse money to contribute to their own TFSA without attribution.

Using both

Room in both accounts is generous: $7,000 of TFSA room and up to $33,810 of RRSP room accrue each year. Most households can eventually fill both. A common sequence is: employer match first, then the account favoured by the rate comparison above, then the other account, with the RRSP refund directed into the TFSA so the refund is not spent.