Foreign Withholding Tax on U.S. Dividends: The TFSA Trap Most Investors Don't See

What Is Foreign Withholding Tax?

Foreign withholding tax is a tax that a foreign government deducts directly from dividend payments before they reach you. Your broker doesn't add this line to your statement — the dividend simply arrives smaller than it should be.

For Canadian investors holding U.S. dividend stocks, the Canada-U.S. tax treaty sets the withholding rate at 15%. That applies to eligible dividends paid by U.S. corporations — which covers most of the popular names: Johnson & Johnson, Coca-Cola, Realty Income, and any U.S.-listed ETF that pays dividends.

That's real money, and the TFSA does nothing to stop it.

Why the TFSA Doesn't Protect You Here

The TFSA exempts you from Canadiantax — income earned inside the account is not reported as income on your Canadian return. That's the protection most people know.

What it doesn't do is exempt you from foreign withholding tax. The 15% the IRS takes is deducted before the dividend even reaches Canada. By the time the payment lands in your account, the withholding has already happened. Your TFSA has no jurisdiction over it.

This surprises a lot of investors because the TFSA feels like a tax-free shield for everything. It isn't. For foreign dividends, the account type matters — and the TFSA is actually the worst place to hold them.

Account Type Breakdown: Where Foreign Dividends Belong

The RRSP exemption exists because the Canada-U.S. tax treaty specifically recognizes registered retirement accounts. Your TFSA is not covered by that exemption. Non-registered accounts are the middle ground: you pay the withholding, but you recover it dollar-for-dollar as a foreign tax credit when you file. The TFSA has no recovery mechanism — the withholding is gone.

What Your TFSA Is Actually Best For

Repositioning your U.S. holdings doesn't mean abandoning your TFSA — it means using it more deliberately. Your TFSA is still an excellent account for:

• • Canadian dividend stocks — no foreign withholding applies to domestic dividends; the TFSA shields them from Canadian tax completely
• • Canadian-listed ETFs holding U.S. stocks— some fund structures partially reduce the withholding hit, though it isn't fully eliminated
• • Growth stocks paying little or no dividend— withholding is a non-issue when there's no dividend to withhold

How to Calculate Your Actual After-Withholding Yield

The dividend yield quoted on any U.S. stock is the gross yield — before withholding. The yield you actually receive in a TFSA is 15% lower than advertised.

Over a 20-year holding period, the gap between what you thought you were earning and what you actually received — compounded — becomes a significant shortfall. Every dollar of withholding is a dollar that wasn't reinvested, didn't compound, and didn't grow.

Prospyr's Dividend Calculator includes a foreign withholding tax field so you can enter your actual withholding rate and see your real after-tax yield — not the number your brokerage quote shows.