TFSA vs. Roth IRA: How the Tax-Free Accounts Compare

The Canada Revenue Agency's most recent TFSA statistical tables show roughly 16.7 million Canadians held a Tax-Free Savings Account at the end of the last reported tax year, with average individual fair market value above $30,000. South of the border, the Investment Company Institute counts about 27% of US households holding a Roth IRA. The two accounts get spoken about as siblings, but they sit in different parts of the tax code and behave differently in ways that matter most at the edges.

The TFSA was created by the Income Tax Act §146.2 in 2009. Contributions are not deductible, growth inside the account is not taxed, and withdrawals are not taxed and do not flow through to other income-tested benefits. Annual contribution room is set each year by the Department of Finance and indexed to inflation in $500 increments; cumulative room for a Canadian who has been eligible since 2009 sits around $102,000 entering 2026.

What the Roth IRA actually is

The Roth IRA was added to the US tax code as IRC §408A in the Taxpayer Relief Act of 1997. Like the TFSA, contributions are made with after-tax dollars and qualified withdrawals are not taxed. Unlike the TFSA, the Roth IRA carries an earned-income requirement, a contribution cap that is far lower than total annual room, and a phase-out range that excludes higher-income filers from making direct contributions. The 2024 contribution limit was $7,000, with a $1,000 catch-up at age 50, and the phase-out for single filers began at modified adjusted gross income of $146,000.

Where the accounts diverge

Liquidity is the cleanest distinction. A TFSA holder can withdraw any amount at any time, and the withdrawn amount is added back to contribution room the following January 1. The Roth IRA permits at-will withdrawal of contributions but applies a 10% additional tax on earnings withdrawn before age 59½ unless a §72(t) exception applies, with five-year clock rules that catch many first-time users by surprise. The TFSA also has no required minimum distributions, while the Roth IRA's RMD treatment was simplified by SECURE 2.0 but still requires care for inherited accounts.

Income matters in different ways. The TFSA's room is the same for every Canadian over 18 with a valid SIN, regardless of earnings. Roth IRA direct contributions phase out and disappear above the IRS-published thresholds, which is why the so-called backdoor Roth — a non-deductible traditional IRA contribution converted to a Roth — remains in widespread use despite periodic legislative attempts to restrict it.

“The Roth's appeal is the tax-free compounding; the TFSA's appeal is that the rules barely get in the way.”

Cross-border holders

Holders of both accounts who move across the border face a treatment mismatch. The Canada-US tax treaty does not extend tax-free status to the TFSA for US persons; the inside buildup is generally taxable on the US return in the year earned. The Roth IRA is recognized by the CRA as a pension under Article XVIII provided the holder makes a one-time election when they become a Canadian resident and stops contributing to the account from Canada. Bilingual practitioners deal with this every January and rates and election deadlines change; verify the current position with a cross-border tax preparer before making contributions either way.

For domestic users, the practical decision is rarely either-or. A Canadian with both an RRSP and a TFSA generally fills the TFSA first for short- and medium-term goals and uses the RRSP for retirement income smoothing. A US filer fills the Roth IRA up to the cap if eligible, captures any employer 401(k) match, and revisits the choice each year against changes in income and the published IRS limits.