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Roth IRA vs TFSA: Which Is Better for Tax-Free Growth?

8 min read · Investing · Retirement
Educational information only: This article is general information for learning. It does not replace guidance from a qualified professional who can review your full situation.

If you live in the United States, the Roth Individual Retirement Account (Roth IRA) can be a valuable retirement account. If you live in Canada, the Tax-Free Savings Account (TFSA) plays a similar role for tax-free growth. Both accounts can be useful, but they work differently, have different rules, and suit different situations.

This guide explains both accounts side by side so you can understand which one applies to your country and what rules to research before contributing.

What They Have in Common

Both the Roth IRA and the TFSA share the same core idea: you contribute money you have already paid tax on, and from that point forward, everything that grows inside the account — dividends, capital gains, interest — is completely tax-free. When you withdraw the money, you owe nothing to the government.

This is different from a traditional 401(k) or Registered Retirement Savings Plan (RRSP), where you may get a tax break now but pay tax when you withdraw. With a Roth IRA or TFSA, you generally contribute after-tax money and may receive tax-free withdrawals if the rules are followed.

The Roth IRA (United States)

The Roth IRA is a retirement account offered to Americans with earned income. Here are the key rules for 2025:

  • Contribution limit: $7,000 per year (under age 50) or $8,000 (age 50 and older)
  • Income limit: Phases out at $146,000–$161,000 for single filers; $230,000–$240,000 for married filing jointly
  • Withdrawals: Contributions can be withdrawn anytime, tax and penalty-free. Earnings can be withdrawn tax-free after age 59½ if the account is at least 5 years old
  • Investment options: Stocks, exchange-traded funds, mutual funds, bonds, and other eligible investments
  • May fit: People who expect higher tax rates in retirement or want tax-free qualified withdrawals later
Example: $7,000 invested at age 25 at a 7% assumed annual return would become approximately $106,000 by age 65 before any taxes or fees. This is an illustration, not a promise.

The TFSA (Canada)

The Tax-Free Savings Account is available to Canadians aged 18 and older with a valid Social Insurance Number. Despite the name, it can hold more than cash savings, including eligible stocks, exchange-traded funds, and mutual funds.

  • Contribution limit: $7,000 per year in 2025 (cumulative room since 2009 is $95,000)
  • Income limit: None — any Canadian can contribute regardless of income
  • Withdrawals: Any time, completely tax-free. Withdrawn amounts are added back to your contribution room the following year
  • Investment options: Stocks, exchange-traded funds, mutual funds, Guaranteed Investment Certificates, and more
  • May fit: Canadians who want flexible, tax-free access to eligible savings or investments
A key Tax-Free Savings Account difference: There is no income limit, and withdrawals are generally tax-free. Withdrawn room is added back in the next calendar year, but recontributing too early can cause penalties.

Key Differences at a Glance

FeatureRoth IRA (United States)TFSA (Canada)
Annual limit (2025)$7,000 United States dollars$7,000 Canadian dollars
Income limitYes (phases out)None
Early withdrawal penalty10% on earnings before 59½No penalty
Withdrawn room restoredNoYes, next calendar year
Tax on contributionsAfter-tax dollarsAfter-tax dollars
Tax on growthZeroZero
Tax on withdrawalsZero (if qualified)Zero

Which One Should You Prioritize?

If you are in the United States: Learn how a Roth IRA compares with a taxable brokerage account and any employer retirement match available to you. Use our Investment Calculator to estimate what consistent contributions could add up to over time.

If you are Canadian: Learn how a Tax-Free Savings Account compares with a Registered Retirement Savings Plan and a taxable account. The best order depends on your income, goals, employer plan, contribution room, and tax situation.

If you are unsure what to do with your money overall, use the free financial plan tool to get general educational next steps based on your situation.

Frequently Asked Questions
If you are a dual citizen or resident of both countries, you may be subject to cross-border tax complexities. A Roth IRA owned by a Canadian resident may not be recognized as tax-free in Canada without a specific tax treaty election. Consult a cross-border tax professional if this applies to you.
You can use the "backdoor Roth IRA" strategy: contribute to a Traditional IRA (no income limit) and then convert it to a Roth IRA. This is legal, widely used, and gives high earners access to the same tax-free growth.
Despite the name, a Tax-Free Savings Account can hold eligible investments such as stocks, exchange-traded funds, mutual funds, bonds, and Guaranteed Investment Certificates. Many Canadians use it for long-term investing, but the right mix depends on risk tolerance and timeline.