US Treasury bonds offer Canadian investors access to securities backed by the US government, providing a fixed-income option with different characteristics than Canadian government bonds. For Canadians, these bonds introduce currency exposure, specific tax treatment under CRA rules, and foreign property reporting requirements at certain thresholds. Understanding how interest is taxed, how currency fluctuations affect returns, and whether to hold them inside or outside registered accounts is essential before investing.

What Are US Treasury Bonds?

US Treasury bonds (often called T-bonds) are debt securities issued by the United States Department of the Treasury with maturities ranging from 10 to 30 years. When you purchase a US Treasury bond, you lend money to the US federal government in exchange for regular semi-annual interest payments (coupon payments) and the return of your principal at maturity. These bonds are considered among the safest fixed-income investments globally because they carry the full faith and credit of the US government.

The US Treasury issues several types of securities beyond long-term bonds: Treasury bills (T-bills) mature in one year or less, Treasury notes (T-notes) mature in 2 to 10 years, and Treasury Inflation-Protected Securities (TIPS) adjust principal based on inflation. For Canadian investors, all of these are denominated and pay interest in US dollars.

As covered in Principles of Finance, government bonds serve as benchmark securities in fixed-income markets, and understanding their mechanics helps investors assess risk and return across different sovereign issuers.

Why Canadian Investors Consider US Treasury Bonds

Canadian investors may add US Treasury bonds to their portfolios for several reasons. First, they provide geographic diversification beyond Canadian government bonds and provincial bonds. While Government of Canada bonds offer comparable safety for domestic investors, US Treasuries give exposure to the world’s largest bond market and the US dollar.

Second, yields on US Treasury securities sometimes differ from Canadian government bond yields due to monetary policy divergence between the Bank of Canada and the US Federal Reserve. When the Bank of Canada policy interest rate and the US Federal Reserve’s target rate move independently, the spread between Canadian and US government bond yields can create opportunities or trade-offs.

Third, US Treasuries offer a liquid, transparent market with deep secondary trading, making it relatively straightforward to buy and sell positions. Major Canadian brokerages and investment platforms provide access to US Treasury securities alongside domestic fixed-income products.

How US Treasury Bonds Work for Canadian Residents

When a Canadian resident purchases a US Treasury bond, the transaction occurs in US dollars. You convert Canadian dollars to USD to buy the bond, receive interest payments in USD, and receive your principal repayment in USD at maturity. This currency layer is fundamental: your total return depends not only on the bond’s yield but also on the CAD/USD exchange rate over the holding period.

For example, if you purchase a 10-year US Treasury note yielding 4.5% annually and hold it to maturity, your nominal USD return is predictable. However, if the Canadian dollar strengthens significantly against the US dollar during that period (for instance, moving from 1.35 CAD/USD to 1.25 CAD/USD), converting your USD principal and accumulated interest back to CAD will result in a lower CAD return than the bond’s yield alone suggests. Conversely, if the Canadian dollar weakens, your CAD return increases.

According to the Bank of Canada, exchange rate fluctuations between the Canadian dollar and the US dollar are influenced by commodity prices (especially oil), interest rate differentials, and broader economic conditions. Canadian investors holding US-dollar-denominated bonds are exposed to this volatility.

Tax Treatment for Canadian Investors

Interest income from US Treasury bonds is taxable in Canada. The Canada Revenue Agency treats this as foreign investment income, which you must report on your T1 General tax return annually. Interest earned on US Treasuries is considered ordinary income and taxed at your marginal income tax rate, the same as interest from Canadian GICs or Government of Canada bonds.

The United States does not withhold tax on interest paid to non-resident investors (including Canadians) on US Treasury securities. This is a key distinction: while dividends from US stocks typically face a 15% withholding tax under the Canada-US tax treaty, US Treasury interest is exempt from withholding. You receive the full interest payment in your account, and you report and pay Canadian tax on it through your annual filing.

If you sell a US Treasury bond before maturity at a price higher than your purchase price, the gain is a capital gain, subject to Canada’s capital gains inclusion rate (as of 2026, 50% of the gain is taxable for most individuals, though rates for gains above certain thresholds have varied in recent tax years). Currency gains (if you convert USD proceeds back to CAD when the Canadian dollar has weakened) are also treated as capital gains. According to the Canada Revenue Agency, all foreign investment income and capital gains must be converted to Canadian dollars for tax reporting purposes using the Bank of Canada exchange rate on the transaction date.

Holding US Treasury Bonds in RRSP or TFSA

Canadian investors can hold US Treasury bonds inside registered accounts such as an RRSP (Registered Retirement Savings Plan) or TFSA (Tax-Free Savings Account), subject to their account’s foreign content rules and the specific terms of their brokerage.

Within an RRSP, interest and capital gains from US Treasuries grow tax-deferred, just as they would for Canadian bonds. The absence of US withholding tax on Treasury interest makes RRSPs an efficient vehicle for holding these bonds, as you face no foreign tax drag. Withdrawals from the RRSP in retirement are taxed as ordinary income at your marginal rate, regardless of whether the source was US bond interest, Canadian bond interest, or equity gains.

In a TFSA, interest and capital gains on US Treasury bonds are tax-free when withdrawn, provided you follow TFSA contribution and withdrawal rules. Again, the lack of US withholding on interest preserves the tax advantage. However, because US Treasuries are denominated in USD, you are still exposed to currency risk, and any CAD gains or losses from exchange rate movements occur inside the tax-sheltered account, neither taxable nor deductible.

Canadian residents must report their total foreign property holdings to the CRA on Form T1135 if the combined cost amount of all specified foreign property exceeds $100,000 CAD at any time during the year. US Treasury bonds held outside registered accounts count toward this threshold; bonds held inside an RRSP or TFSA are exempt from T1135 reporting because the registered plan itself is the owner, not you personally.

Currency Risk and Return Considerations

Currency exposure is the most significant differentiator between US Treasury bonds and Government of Canada bonds for Canadian investors. A US Treasury bond yielding 4% may appear attractive compared to a Government of Canada bond yielding 3.5%, but if the Canadian dollar appreciates 2% against the US dollar over your holding period, your realized CAD return could be lower than the Canadian bond’s return.

Conversely, if the Canadian dollar weakens, your CAD return is magnified. For long-term holders, currency movements can add substantial volatility to what is otherwise a stable, low-risk fixed-income position.

Read also: How GICs Work in Canada and When They Beat a High-Interest Savings Account

Some Canadian investors use US Treasury bonds as a deliberate USD allocation, treating currency exposure as a form of diversification rather than pure risk. If you expect future expenses in US dollars (for example, retirement travel or property in the United States) or believe the Canadian dollar will weaken over time, holding USD-denominated bonds can serve a strategic purpose.

Others hedge currency risk by pairing US Treasury bonds with currency hedging instruments (currency forwards or ETFs that hedge USD exposure back to CAD). Major Canadian bond ETFs that hold US Treasuries often offer both hedged and unhedged versions, allowing you to choose your currency exposure.

Comparing US Treasury Bonds to Canadian Government Bonds

Government of Canada bonds and US Treasury bonds share similar credit quality: both are backed by their respective federal governments and considered virtually free of default risk. The practical differences lie in currency, liquidity, and yield.

Canadian government bonds eliminate currency risk for CAD-based investors and align directly with domestic inflation and interest rate cycles managed by the Bank of Canada. US Treasury bonds introduce currency exposure and tie your fixed-income returns to US monetary policy and the US Federal Reserve’s rate decisions.

Liquidity in both markets is high, though the US Treasury market is larger and deeper globally. For retail Canadian investors accessing bonds through a brokerage, both are readily tradable.

Yield spreads between the two reflect interest rate differentials, inflation expectations, and risk premiums. When the Bank of Canada and the Federal Reserve set different policy rates, the yield curves diverge, creating periods when one sovereign’s bonds offer higher nominal yields than the other.

For a Canadian investor seeking pure fixed income with no currency risk, Government of Canada bonds, provincial bonds, or GICs at CDIC-member institutions are more straightforward. For those seeking USD exposure, diversification, or a tactical play on relative yields and exchange rates, US Treasuries serve a distinct role.

How to Purchase US Treasury Bonds as a Canadian Investor

Canadian residents can purchase US Treasury bonds through several channels. Most online brokerages serving Canadian clients (including major bank-owned platforms and discount brokers) provide access to US Treasury securities on secondary markets. You open a USD-denominated account or trade US securities within your existing brokerage account, converting CAD to USD as needed.

You can also access US Treasury exposure indirectly through Canadian-listed bond ETFs that hold US government bonds. These funds offer diversification across multiple maturities and often handle currency conversion and reinvestment for you. Some Canadian bond ETFs are currency-hedged, eliminating USD/CAD exchange rate risk, while others are unhedged, leaving you with full currency exposure.

Direct purchase from the US Treasury (via TreasuryDirect.gov) is available to US residents but generally not to Canadian residents, so Canadian investors rely on brokerage access or ETFs.

Common Mistakes and Considerations

One common mistake is ignoring currency risk. Canadian investors attracted to a higher nominal yield on US Treasuries sometimes overlook that exchange rate movements can erase yield advantages or amplify losses. Always assess your total expected CAD return, factoring in realistic currency scenarios.

Another error is failing to report foreign income correctly. Even though the US does not withhold tax on Treasury interest, you must report the income to the CRA and pay Canadian tax. Underreporting foreign investment income can lead to reassessments, penalties, and interest charges.

A third pitfall is neglecting the T1135 foreign property reporting requirement. If your total specified foreign property (including US Treasuries held outside registered accounts) exceeds $100,000 CAD at any point in the year, you must file Form T1135 with your tax return. The threshold applies to the cost amount, not market value, and failure to file can result in significant penalties.

Finally, some investors assume US Treasury bonds are inherently superior to Canadian government bonds due to the size and prestige of the US market. In reality, for a Canadian resident with Canadian dollar expenses and liabilities, Government of Canada bonds may provide a better risk-adjusted return when currency volatility is considered. The choice depends on your currency outlook, diversification goals, and risk tolerance.

Conclusion

US Treasury bonds offer Canadian investors a high-quality fixed-income option backed by the US government, with the added dimension of currency exposure. Understanding the tax treatment (foreign income reported to CRA, no US withholding on interest), the role of exchange rate fluctuations, and the reporting requirements (T1135 for holdings above $100,000 CAD outside registered accounts) is essential before investing.

For Canadian residents seeking geographic diversification, a tactical USD position, or access to US interest rates, US Treasuries can complement a portfolio that already includes Canadian government bonds, GICs, and other domestic fixed-income securities. For those prioritizing simplicity and eliminating currency risk, Government of Canada bonds and GICs remain the more straightforward choice.

This information is educational and general in nature and does not constitute personalized investment or tax advice. Tax rules, contribution limits, and currency markets change over time. Consult a Chartered Professional Accountant (CPA) or Certified Financial Planner (CFP) for guidance tailored to your personal financial situation, and confirm current CRA requirements and Bank of Canada exchange rates before making investment decisions.