The bottom line: Low-cost, broad-market index ETFs have consistently outperformed the majority of actively managed funds over the long term while charging a fraction of the fees. For Canadian investors building wealth inside a TFSA or RRSP, these passive investment vehicles offer diversification, simplicity, and tax efficiency that make them hard to ignore. If you are not already holding at least one index ETF in your portfolio, you may be leaving significant long-term returns on the table.

What Makes This ETF a Winner

The winning ETF is not a single fund but a category: low-cost, broad-market index exchange-traded funds that track major indices such as the S&P 500, the S&P/TSX Composite Index, or global equity markets. These funds are traded on the Toronto Stock Exchange and are designed to mirror the performance of an entire market or sector rather than trying to beat it through active stock selection.

Examples of popular index ETFs available to Canadian investors include Vanguard S&P 500 Index ETF (VFV), iShares Core S&P/TSX Capped Composite Index ETF (XIC), Vanguard All-Equity ETF Portfolio (VEQT), and BMO S&P 500 Index ETF (ZSP). Each of these funds provides instant diversification across dozens or hundreds of individual stocks, all for an annual management fee (known as the management expense ratio, or MER) that typically ranges from 0.03% to 0.25%.

As covered in foundational investment texts such as Principles of Finance by OpenStax, diversification reduces risk by spreading capital across multiple securities, and keeping costs low is one of the most reliable ways to improve net returns over time. Index ETFs deliver both.

Why Costs Matter More Than You Think

The difference between a 0.08% MER on an index ETF and a 2.00% MER on an actively managed mutual fund may sound trivial, but compounded over decades, the impact is profound. On a $50,000 investment growing at an average annual return of 7% over 30 years, the low-cost ETF would grow to approximately $361,000 after fees. The high-cost fund, with the same gross return but higher fees, would end up closer to $253,000. That $108,000 difference represents money that went to fund management instead of staying in your account to compound.

According to research highlighted by the Ontario Securities Commission’s investor education platform, most actively managed funds fail to outperform their benchmark index over the long term, especially after fees are accounted for. This does not mean active managers lack skill; it reflects the reality that markets are efficient, and consistently beating them year after year is exceptionally difficult.

The Canadian Advantage: TFSA and RRSP

Canadian investors have two powerful registered accounts that magnify the benefits of low-cost ETF investing: the Tax-Free Savings Account (TFSA) and the Registered Retirement Savings Plan (RRSP).

Inside a TFSA, all investment growth is tax-free, and withdrawals are not subject to income tax. The annual contribution limit for 2024 is $7,000, and unused room carries forward indefinitely. Holding a low-cost index ETF inside a TFSA means every dollar of growth, every dividend reinvested, and every capital gain compounds without ever being taxed. For younger Canadians with decades until retirement, this tax-free compounding is a wealth-building engine.

Inside an RRSP, contributions are deductible from your taxable income in the year they are made, and investment growth is tax-deferred until withdrawal. Contribution room is calculated as 18% of your prior year’s earned income, up to an annual limit set by the Canada Revenue Agency (as of 2024, the limit is $31,560; confirm current limits on the CRA website before acting). By the time you convert your RRSP to a Registered Retirement Income Fund (RRIF) and begin withdrawals, you may be in a lower tax bracket, effectively reducing your lifetime tax burden.

Holding low-cost index ETFs in these accounts, rather than high-fee mutual funds, ensures that more of your return stays invested and compounds over time.

Specific ETF Options for Canadian Investors

Canadian investors have access to a robust selection of index ETFs on the TSX, covering domestic equities, US markets, international developed markets, and emerging markets. Here are a few widely held examples:

Vanguard S&P 500 Index ETF (VFV): Tracks the S&P 500, providing exposure to 500 of the largest US companies. MER is 0.08%. Trades in Canadian dollars, eliminating the need for currency conversion.

iShares Core S&P/TSX Capped Composite Index ETF (XIC): Tracks the S&P/TSX Composite Index, giving exposure to the broad Canadian equity market across all sectors. MER is 0.06%.

Read also: Start 2026 Strong: 3 Canadian ETFs for Smart Investors in Canada

Vanguard All-Equity ETF Portfolio (VEQT): A one-ticket solution offering global equity diversification (Canada, US, international developed, and emerging markets) with automatic rebalancing. MER is 0.24%.

BMO Aggregate Bond Index ETF (ZAG): For investors seeking fixed-income exposure, this fund tracks Canadian investment-grade bonds. MER is 0.09%.

These funds are available through any Canadian discount brokerage, and many brokerages now offer commission-free ETF purchases, making it cost-effective to invest even small amounts on a regular basis.

Why Many Canadians Miss Out

Despite the proven track record and accessibility of index ETFs, many Canadian investors still hold high-fee mutual funds or keep too much cash sitting idle in low-interest savings accounts. Common reasons include a lack of awareness, the perception that investing is complicated, or trust in a financial adviser who earns commissions from selling higher-fee products.

The reality is that setting up a self-directed investment account with a discount brokerage such as Questrade, Wealthsimple Trade, or a bank-owned platform takes less than an hour. Once the account is linked to your bank, transferring funds and purchasing ETFs is straightforward. You do not need to pick individual stocks, time the market, or constantly monitor your portfolio. A simple strategy of contributing regularly to a low-cost, broad-market ETF, held inside a TFSA or RRSP, has historically been one of the most effective ways to build wealth over the long term.

The Long-Term Evidence

Historical data shows that the S&P 500 has delivered an average annual return of approximately 10% over the past several decades, though returns vary year to year and past performance does not guarantee future results. Canadian equity markets have also provided solid long-term returns, though with greater exposure to specific sectors such as financials, energy, and materials.

The key is consistency. Investors who contribute regularly, reinvest dividends, and resist the urge to sell during market downturns benefit from dollar-cost averaging and the power of compound growth. As highlighted by the Financial Consumer Agency of Canada, starting early and investing consistently are two of the most important factors in long-term financial success.

Practical Next Steps

If you are not currently invested in a low-cost index ETF, the first step is to open a self-directed TFSA or RRSP account with a Canadian discount brokerage. Review your current contribution room on your CRA My Account portal to determine how much you can contribute. Then, choose one or two broad-market index ETFs that match your risk tolerance and investment timeline. Set up automatic monthly contributions if possible, and reinvest all dividends.

If you are already working with a financial adviser, ask about the MER on your current holdings and whether lower-cost index ETF options are available. A difference of even 1% in annual fees can translate to tens of thousands of dollars over a 20- or 30-year investment horizon.

The winning ETF is not a secret, and it is not out of reach. It is a low-cost, diversified, tax-efficient investment vehicle available to every Canadian investor. The only question is whether you will take advantage of it.

Disclaimer: This article provides general educational information and does not constitute personalized investment, tax, or financial advice. Investment returns fluctuate, and past performance does not guarantee future results. Tax rules and contribution limits change annually; confirm current limits on the CRA website before acting. Consult a Certified Financial Planner or Chartered Professional Accountant for advice tailored to your personal financial situation.