"Should I put it in my TFSA or my RRSP?"
It's one of the most common questions advisors hear. And the most common answer, "it depends on whether your tax rate now is higher than in retirement", is technically correct but almost entirely unhelpful on its own.
The reality is that the TFSA vs. RRSP decision interacts with CPP timing, OAS eligibility, spousal income, pension income splitting, the age amount credit, GIS eligibility for lower-income clients, and a client's likely estate situation. Getting it right means building a framework that accounts for the full picture, not just the bracket comparison.
Here's a framework that works across client profiles.
Start With the Future Marginal Rate, But Don't Stop There
The foundational question is still correct: if a client's marginal tax rate in retirement will be lower than it is today, an RRSP deduction is worth more than a TFSA contribution of the same amount. If their rate will be the same or higher, the TFSA wins.
But "marginal rate in retirement" is harder to estimate than most clients think, because it includes:
- CPP income (mandatory, based on contribution history)
- OAS income (if not deferred or clawed back)
- RRIF minimum withdrawals (which grow as the account grows)
- Any pension or annuity income
- Non-registered investment income (dividends, capital gains, interest)
- Any part-time or consulting income in early retirement
When advisors run a full income projection through retirement, many clients are surprised to find they'll be in a higher tax bracket than expected at 72–80 due to RRIF minimums. In those cases, the instinct to "top up the RRSP" may be the wrong call.
Profile 1: The High Earner Who Plans to Retire Early
A client earning $200,000 who plans to retire at 58 is a strong RRSP candidate during their earning years, the deduction is worth 50%+ in most provinces. But post-retirement, they have a 7-year window (58–65) before CPP and OAS begin, during which their income may be very low.
The optimal strategy: max the RRSP during high-earning years to capture the large deduction, then draw down the RRSP aggressively in the pre-CPP years (ideally to the top of the lowest bracket), and shift the after-tax proceeds into a TFSA. This prevents a future RRIF accumulation problem while preserving tax-free growth.
Profile 2: The Steady Middle-Income Earner
A client earning $80,000 consistently over their career and expecting a similar income in retirement (combination of CPP, small pension, RRIF withdrawals) is often a TFSA-first candidate in many years, especially if they've already contributed to an RRSP and have limited new room.
At $80,000, the RRSP deduction saves roughly 33–40% in tax now. But if retirement income is also $80,000 (which is common when you factor in that many clients continue working part-time, or have small pensions that stack on top of CPP and OAS), the RRSP withdrawal is taxed at roughly the same rate. The TFSA offers the same result with more flexibility and no mandatory withdrawal rules.
For this client, the TFSA is also more useful for large one-time expenses (home renovation, car replacement, helping with a child's down payment) because it doesn't create income inclusion when drawn down.
Profile 3: The Lower-Income Client Near Retirement
For clients with modest lifetime earnings, expected total retirement income below $30,000–$40,000, the TFSA is almost always the better vehicle, and the RRSP can actively hurt them.
RRIF withdrawals count as income for the purpose of the Guaranteed Income Supplement (GIS), a federal benefit available to low-income OAS recipients. For every dollar of RRIF income, GIS is clawed back at 50 cents. A $10,000 RRIF withdrawal for a GIS-eligible client could trigger $5,000 in GIS clawback, an effective 50% marginal tax rate, often worse than what they'd save from the RRSP deduction.
TFSA withdrawals, by contrast, do not count as income for GIS purposes. They are completely invisible to the calculation.
This matters most for clients who had irregular employment, took time out of the workforce for caregiving, or simply had lower incomes. These clients are often under-served by a planning approach that defaults to "RRSP first."
Profile 4: The Business Owner
Business owners who flow income through a corporation have a third option that personal employees don't: leave earnings in the corporation and invest them there. When personal income is already high, contributing to an RRSP from a salary that was extracted specifically to create contribution room may not be efficient.
For incorporated clients, the sequencing question often becomes: TFSA first (because they're not taking salary high enough to generate meaningful RRSP room anyway), then RRSP to absorb any remaining contribution room, then corporate retained earnings as the primary long-term accumulation vehicle.
The Rule No Framework Can Replace
Every framework for TFSA vs. RRSP is a starting point, not a conclusion. The right answer for any client depends on the interplay of their specific income sources, timeline, estate goals, family situation, and provincial tax rates, and that answer can change from year to year as circumstances evolve.
The advisors who handle this best aren't the ones who have memorized the best rule of thumb. They're the ones who run the projection, show both scenarios, and explain the difference in plain language. A client who understands why they're putting money in a TFSA this year instead of an RRSP is a client who trusts their advisor, and who comes back.
PlanBase models TFSA vs. RRSP contribution strategies across the client's full retirement income projection, including GIS impact analysis and spousal optimization.