The TFSA and RRSP both offer tax-sheltered investment growth but in opposite directions. RRSP contributions are deducted from current income (tax saved at the contributor’s current marginal rate); withdrawals are taxed as income at the future marginal rate. TFSA contributions are made with after-tax dollars (no deduction); withdrawals are tax-free. The decision usually comes down to whether the contributor’s current marginal tax rate is higher or lower than their expected retirement marginal rate.
Side-by-side comparison
| Feature | TFSA | RRSP |
|---|---|---|
| Tax deduction on contribution | No | Yes |
| Tax on growth | None | None (tax-deferred) |
| Tax on withdrawal | None | Full marginal rate |
| 2026 contribution limit | $7,000 + cumulative carry-forward | $33,810 (or 18% of prior earned income, less PA) |
| Affects government benefits (OAS, GIS, GST credit) | No (withdrawals not income) | Yes (withdrawals are income) |
| Withdrawal flexibility | Anytime, no tax, room comes back next January | Anytime with withholding tax; room never returns |
| Account expiry | Indefinite | Must convert to RRIF/annuity by Dec 31 of year you turn 71 |
| Spousal version | Cannot contribute to spouse’s TFSA (gift instead) | Spousal RRSP allowed |
The marginal rate test
The simplest decision rule: TFSA wins if your retirement marginal rate will be higher than your contribution-year marginal rate. RRSP wins if the opposite. Marginal rates being equal at both points produces identical after-tax wealth from either account, ignoring contribution-room differences.
For most Canadians, retirement marginal rate is lower than working-age marginal rate (because retirement income is typically lower). This favours RRSP for higher-income workers. For lower-income workers (under approximately $50,000 income), retirement marginal rate may be similar or higher (because of OAS/GIS interactions), favouring TFSA.
Worked example: high-income earner
An earner at the 40% combined marginal rate contributes $7,000 to a TFSA versus $11,667 to RRSP (the $7,000 net cost equals an $11,667 RRSP contribution, which generates a $4,667 refund). Both grow at 6% annually for 30 years. Retirement marginal rate is 30%.
| Account | Pre-tax contribution | After-tax cost | Balance after 30 years | After-tax withdrawal |
|---|---|---|---|---|
| TFSA | $7,000 | $7,000 | $40,200 | $40,200 |
| RRSP | $11,667 | $7,000 (after refund) | $67,000 | $46,900 (at 30% retirement rate) |
RRSP wins by approximately $6,700 because the marginal rate dropped from 40% (working) to 30% (retirement). The gap widens with larger rate spreads and longer time horizons.
Worked example: lower-income earner
An earner at the 25% combined marginal rate contributes $7,000 to TFSA versus $9,333 to RRSP (RRSP after-tax cost $7,000 with a $2,333 refund). Retirement marginal rate is also 25% (working part-time + GIS).
| Account | Pre-tax contribution | After-tax cost | Balance after 30 years | After-tax withdrawal |
|---|---|---|---|---|
| TFSA | $7,000 | $7,000 | $40,200 | $40,200 |
| RRSP | $9,333 | $7,000 (after refund) | $53,600 | $40,200 (at 25%) |
Mathematically equal. But TFSA wins on RRSP-related government benefit erosion: RRSP withdrawals could trigger GIS clawback at $0.50 per dollar, where TFSA withdrawals do not. For lower-income retirees, TFSA wins despite equal marginal-rate math.
The “same after-tax” principle
If your contribution-year marginal rate equals your retirement marginal rate, TFSA and RRSP produce identical after-tax wealth on equivalent after-tax contributions. The choice comes down to other factors: government benefit interactions, withdrawal flexibility, contribution-room availability, and behavioural considerations.
When to favour TFSA
- Lower-income earner (under ~$50,000) who may face GIS clawback or other benefit erosion in retirement.
- Saving for a non-retirement goal where flexibility matters (emergency fund, major purchase).
- Already at 71 or close, RRSP conversion to RRIF would create unwanted income.
- Non-residency or international moves possible: TFSA has fewer cross-border complications for Canadian residents.
When to favour RRSP
- Higher-income earner (~$80,000+) at marginal rate 35%+ who expects retirement marginal rate of 25-30%.
- Specific use of refund: HBP for first home (only RRSP), pension splitting after 65 (RRIF income only).
- Group RRSP with employer matching (free money beats any solo TFSA contribution).
- Building income-replacement during high-income years for an early retirement bridge.
Why “both” is often correct
Many Canadians benefit from contributing to both accounts. RRSP captures the immediate tax refund and grows tax-deferred. TFSA shelters the refund from future tax. The combined approach diversifies tax exposure across retirement and provides withdrawal flexibility (drawing from TFSA in low-income years, RRIF in higher-income years).
Frequently asked questions
- Should I contribute to TFSA or RRSP?
- Use the marginal rate test: RRSP wins when current marginal rate is higher than expected retirement marginal rate; TFSA wins when the opposite. Lower-income earners usually favour TFSA; higher-income earners favour RRSP.
- What is the 2026 TFSA contribution limit?
- $7,000 plus any unused cumulative room from prior years. Cumulative since 2009 is $109,000 for someone eligible every year.
- What is the 2026 RRSP contribution limit?
- The lesser of $33,810 or 18% of 2025 earned income, minus any pension adjustment, plus unused carry-forward room.
- Does RRSP withdrawal affect government benefits?
- Yes. RRSP and RRIF withdrawals count as income for OAS clawback, GIS, GST/HST credit, and other income-tested benefits. TFSA withdrawals do not.
- Can I contribute to my spouse's TFSA?
- No. TFSA contributions must be made by the account holder. You can gift money to your spouse for them to contribute, with no attribution issues. Spousal RRSP, in contrast, allows direct cross-spouse contribution with attribution rules.
- Can I have both TFSA and RRSP?
- Yes, and most Canadians benefit from contributing to both. Each has separate contribution room and serves different roles in a retirement plan.
- What if my marginal rate is the same now and in retirement?
- TFSA and RRSP produce mathematically equal after-tax wealth on equivalent after-tax contributions. The choice then depends on government benefit interactions, withdrawal flexibility, and tax diversification.