RRSP vs TFSA: how to think about the order of operations

Every Canadian with room in both accounts eventually asks the same question: RRSP first, or TFSA first? There's no universal answer — but the mechanics that determine your answer are the same for everyone, so it's worth understanding them before reaching for a rule of thumb.

What each account actually does

An RRSP contribution is deducted from your taxable income in the year you make it. You get a tax refund (or a smaller tax bill) now, and the money — plus all its growth — is taxed as income when you eventually withdraw it, typically in retirement.

A TFSA contribution uses money you've already paid tax on. There's no deduction now, but growth inside the account is never taxed, and withdrawals are never taxed either, no matter when you take them out or what they've grown to.

For 2026, the RRSP dollar limit is $33,810 (or 18% of your prior year's earned income, whichever is lower — plus any unused room carried forward). The TFSA annual limit is $7,000, and if you've been a Canadian resident and 18 or older since 2009, your cumulative TFSA room is $109,000.

The tradeoff that actually matters

The RRSP/TFSA choice comes down to one comparison: your marginal tax rate now, versus your expected marginal tax rate when you withdraw.

• If your income (and tax rate) today is meaningfully higher than what you expect in retirement, the RRSP's up-front deduction is worth more than the tax-free withdrawal you'd get from a TFSA — you're deferring tax from a high-rate year to a lower-rate one.
• If you expect a similar or higher tax rate later — or you simply want the flexibility to withdraw without any tax consequence or income-testing effect (RRSP withdrawals count as income, which can affect income-tested benefits) — a TFSA holds up better.
• Early in a career, income (and tax rate) is often lower than it will be later, which is part of why "TFSA first, RRSP later" is a common pattern for younger savers — a pattern, not a rule.

A few things worth double-checking

RRSP room and TFSA room are separate systems that don't offset each other, and contribution room legal maxima are set by the CRA, not by any planning tool — always confirm your actual available room against your CRA My Account before contributing to either.

Mensari is an educational decision-support tool, not licensed financial, tax, or legal advice. It illustrates tradeoffs based on the assumptions you provide — always confirm decisions with a qualified professional before acting.

If you want to see how your own RRSP and TFSA room interact with the rest of your plan — contributions, retirement income, and the other FP Canada planning areas — Mensari walks through it conversationally and shows its assumptions at every step.