RRSP vs TFSA Optimizer
The ultimate guide for Canadian savers in 2026: Find the mathematically superior account for your next dollar.
Last updated: April 2026
The Great Canadian Dilemma: RRSP or TFSA?
Both accounts are great, but they serve different tax purposes.
RRSP (Registered Retirement Savings Plan): You get a tax deduction NOW. The money grows tax-deferred, but you'll pay income tax when you withdraw it in the future.
TFSA (Tax-Free Savings Account): No tax deduction now, but the money grows and is withdrawn completely tax-free.
How to use this calculator
- 1Input Current Income — Used to determine your current marginal tax bracket.
- 2Estimate Future Income — Will you be in a lower or higher tax bracket when you retire?
- 3Compare Net Values — The calculator assumes you reinvest your RRSP tax refund to create a fair comparison.
Formula & example
RRSP Future = [Contribution / (1 - CurrentRate)] * (1 + r)^n * (1 - FutureRate)
If you earn $100k (35% tax) and contribute $1,000 to an RRSP, you get $350 back. If you retire at a 20% bracket, you keep more of that growth than if you used a TFSA.
Benefits
Tax Arbitrage
Profit from the difference between your high-earning years and low-earning years.
Flexibility
TFSA is generally better for shorter-term goals given its withdrawal rules.
Wealth Maximization
Don't leave money on the table by choosing the wrong tax structure.
Use cases
High Earners ($100k+)
Usually benefit more from the immediate RRSP tax deduction.
Early Career (<$60k)
TFSA is often superior as you save your RRSP room for higher-earning years later.
Frequently asked questions
What if I need the money early?+
TFSA withdrawals are free and the room is given back the following year. RRSP withdrawals are taxed immediately and you lose that contribution room forever.
Should I do both?+
If you have the funds, maximizing both is ideal. This tool helps you decide which one to prioritize first.