Key Takeaway

When you hold US-listed S&P 500 ETFs like Vanguard’s VOO inside your RRSP, you avoid the 15% US withholding tax on dividends thanks to the Canada-US tax treaty. Canadian-listed alternatives like VFV (TSX) also work in an RRSP without triggering withholding tax. The same ETFs held in a TFSA or non-registered account face the 15% withholding tax, quietly eroding your returns over time. For new RRSP investors targeting broad US equity exposure, understanding this distinction can add meaningful value to your long-term portfolio.

Why Withholding Tax Matters for Canadian Investors

When Canadian investors buy US stocks or ETFs that hold US stocks, dividends paid by those US companies are subject to a 15% withholding tax under US tax law. This tax is deducted at source, before the dividend reaches your account, and it applies automatically regardless of where you live.

For a Canadian holding a US equity ETF that yields 1.5% annually, that 15% withholding tax reduces your effective yield to roughly 1.28%. Over decades of compounding, that difference adds up. According to the Canada Revenue Agency, registered accounts like RRSPs receive different tax treatment than TFSAs or non-registered accounts when it comes to foreign income (CRA, 2026).

The mechanics of tax-efficient investing are covered in foundational texts such as Principles of Finance, which explains how tax treatment affects net returns and why investors must account for withholding when comparing investment options.

How the RRSP Shelters You from US Withholding Tax

The Canada-US tax treaty includes a provision that exempts US withholding tax on dividends paid to Canadian RRSPs. This means that when you hold a US-listed ETF directly in your RRSP, the dividends flow to your account without the 15% haircut.

This exemption applies specifically to RRSPs (and RRIFs, the retirement income continuation of an RRSP). It does NOT apply to TFSAs, which are not recognized under the treaty as a pension or retirement vehicle for this purpose. As a result, US dividends paid into a TFSA are subject to the full 15% withholding tax, and you cannot recover it.

In a non-registered taxable account, you can claim a foreign tax credit on your Canadian tax return to offset the withholding tax you paid to the US, but this only works if you have enough Canadian tax owing to absorb the credit. For many investors, especially retirees with lower income, the credit goes unused.

The RRSP’s treaty protection makes it the single best account type for holding US equities and US-listed ETFs for Canadian investors.

Which Vanguard S&P 500 ETF to Choose in Canada

Vanguard offers several S&P 500 index ETFs accessible to Canadian investors, and the withholding tax treatment varies by listing and domicile.

VOO (Vanguard S&P 500 ETF, US-listed): This is the flagship US-domiciled S&P 500 ETF, trading on the NYSE in US dollars. When held in an RRSP, VOO pays dividends with zero US withholding tax thanks to the treaty exemption. The management expense ratio (MER) is extremely low, typically around 0.03% annually. To buy VOO, you need a brokerage that allows you to trade on US exchanges and convert CAD to USD (most Canadian discount brokerages offer this, though currency conversion spreads vary).

VFV (Vanguard S&P 500 Index ETF, TSX-listed): This is a Canadian-domiciled ETF that trades on the TSX in Canadian dollars. VFV holds the same US stocks as VOO, and because it is structured as a Canadian mutual fund trust, it also avoids US withholding tax when held in an RRSP. The MER is slightly higher than VOO, around 0.08% to 0.09%, to cover the Canadian fund structure and currency management. VFV is convenient for investors who want to avoid currency conversion and prefer to trade in CAD.

VUN (Vanguard U.S. Total Market Index ETF, TSX-listed): VUN tracks the broader US total stock market (not just the S&P 500), and like VFV, it is Canadian-domiciled and avoids withholding tax in an RRSP. VUN provides slightly wider diversification than the S&P 500 by including mid-cap and small-cap US stocks.

Read also: Understanding S&P 500 ETFs in Canada: A Guide for Investors

For new RRSP investors specifically targeting S&P 500 exposure, the choice comes down to VOO (lower MER, requires USD) or VFV (slightly higher MER, trades in CAD, simpler). Both avoid withholding tax in the RRSP, so the decision hinges on your comfort with currency conversion and fee sensitivity.

RRSP vs TFSA vs Non-Registered: A Tax Comparison

The account type you choose determines whether you pay withholding tax on US dividends. Here is how each account treats a US-listed S&P 500 ETF like VOO:

  • RRSP: No US withholding tax on dividends (treaty-exempt). Dividends and capital gains grow tax-deferred. Withdrawals are fully taxable as income in retirement. Best for US equity exposure.

  • TFSA: 15% US withholding tax applies to US dividends, deducted at source, non-recoverable. Growth and withdrawals are otherwise tax-free. For US equities, the TFSA is less tax-efficient than the RRSP.

  • Non-registered account: 15% US withholding tax applies, but you can claim a foreign tax credit on your Canadian tax return (subject to having enough tax owing). Dividends and capital gains are taxable annually. Works better than a TFSA for US dividends only if you can use the credit.

The Ontario Securities Commission’s investor education resource emphasizes understanding the tax implications of different account types before allocating assets (OSC, 2026).

Practical Recommendation for New RRSP Holders

If you have just opened an RRSP and want low-cost, diversified exposure to the US stock market, prioritize holding your US equity ETFs in the RRSP rather than your TFSA. Choose either VOO (if you are comfortable trading in USD and want the lowest MER) or VFV (if you prefer the simplicity of trading in CAD on the TSX).

Reserve your TFSA contribution room for Canadian equities (which do not face withholding tax in any account) or for investments where the tax-free withdrawal feature matters more than the withholding tax drag.

As discussed in resources from MoneySense, thoughtful account allocation (RRSP for US equities, TFSA for Canadian equities and growth-focused holdings) can meaningfully improve your after-tax returns over time (MoneySense, 2026).

Confirm current contribution limits and account rules on the CRA website before making decisions, as RRSP deduction limits and TFSA annual room change each year.

Conclusion

The Canada-US tax treaty gives Canadian RRSP holders a powerful advantage: no US withholding tax on dividends from US stocks and ETFs. For investors targeting S&P 500 exposure, Vanguard’s VOO (US-listed) and VFV (TSX-listed) both deliver this benefit when held in an RRSP, with the choice depending on your preference for currency and fees. Understanding where to hold your US equity positions across RRSP, TFSA, and taxable accounts is one of the simplest, highest-impact tax efficiency decisions a Canadian investor can make.

Disclaimer: This article provides general educational information and does not constitute personalized investment or tax advice. Tax rules, contribution limits, and ETF details change over time. Confirm current RRSP limits, tax treaty provisions, and ETF terms with the CRA and your financial institution before making investment decisions. Consult a Chartered Professional Accountant (CPA) or Certified Financial Planner (CFP) for advice specific to your situation.