US Withholding Tax for Canadians: RRSP vs TFSA

What Is Withholding Tax?

Withholding tax is tax a country takes at the source when a company pays a dividend to a non-resident. The US applies a default 30% rate, and the Canada–US tax treaty reduces it to 15% for Canadian residents. That's the tax that comes off before the dividend reaches your account. It's separate from the Canadian tax you may owe afterward.

Account by Account: What Gets Withheld

The treaty recognizes retirement accounts, which is why the RRSP gets a break and the TFSA, FHSA, and RESP do not. In a non-registered account, the 15% is withheld but can generally be claimed as a foreign tax credit when you file, so it isn't a permanent loss there. The tax article explains the credit.

The Catch: ETF Structure Matters

The RRSP exemption only works when the US payer can see the RRSP as the holder. That means it applies to US stocks and US-listed ETFs (for example, ones that trade on a US exchange) held directly in the RRSP. It does not apply to a Canadian-listed ETF that holds US stocks. Those funds, such as an S&P 500 ETF listed on the TSX, have the 15% withheld inside the fund before it reaches you, regardless of which account you hold the fund in.

There's a second layer to know about. Some Canadian-listed funds hold other ETFs, including US-listed ones, and that can create a second round of withholding at the fund level. Fund providers publish how each of their funds is structured, so the fund's own documents or the provider's withholding tax guide are the place to check rather than assuming.

International (non-US) stocks work differently again: other countries typically withhold on dividends, and the RRSP treaty exemption doesn't apply to those. Distributions from US REITs may also be treated differently than ordinary US dividends under the treaty.

A Worked Example: US$1,000 of Dividends

To put it in scale: at a 1.5% dividend yield, a 15% withholding is about 0.2% of the holding's value per year. That's real money over decades, but it's small compared with big drivers like fees, contribution rate, and staying invested.

Is It Worth Optimizing?

The honest answer is "sometimes." Capturing the RRSP exemption means holding US-listed funds, which needs US dollars, and that brings currency conversion costs (see the Norbert's Gambit article). It also adds complexity, and holding large US-listed positions brings other considerations, including possible T1135 reporting when foreign property held outside registered accounts exceeds $100,000 (by cost), and US estate tax exposure at very large sizes. It's worth asking a professional if you're in that territory.

• Larger portfolios with RRSP room: holding US-listed equity ETFs in the RRSP can be worth considering.
• Smaller portfolios or a single-ticket approach: a Canadian-listed all-in-one ETF in a TFSA or RRSP costs you a little withholding, but it's simpler and easier to stick with.
• Canadian stocks: Canadian dividends carry no foreign withholding at all, one reason they fit comfortably in a TFSA.

Simplicity has value. A slightly imperfect setup you keep contributing to usually beats a perfect one you never finish building.

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