You might think the US Federal Reserve has nothing to do with your Canadian mortgage. You’d be wrong. The Fed is one of the most powerful indirect forces shaping what you pay on your mortgage — through bond markets, currency effects, and the constraint it places on Bank of Canada policy.
As of August 2026, the Bank of Canada overnight rate is 2.25% and the posted 5-year fixed mortgage rate is 6.09% (Bank of Canada Valet API, series V39079 and V80691335, as of 2026-08-26/27) — the baseline figures referenced throughout this page.
Three channels of influence
The US Federal Reserve affects Canadian mortgage rates through three distinct channels:
| Channel | How It Works | Affects |
|---|---|---|
| 1. Bond market | US Treasury yields pull Canadian bond yields in the same direction | Fixed mortgage rates |
| 2. Currency | Rate gap between BoC and Fed affects the loonie → inflation | Both fixed and variable rates |
| 3. Economic spillover | US economy affects Canadian exports, jobs, and growth | BoC policy → variable rates |
Channel 1: US bonds pull Canadian bonds
Canadian and US bond markets are deeply connected. When US Treasury yields move, Canadian Government of Canada bond yields typically follow.
Why this happens
- Capital mobility — Investors can buy Canadian or US bonds. If US 5-year Treasuries yield 4.0% and Canadian 5-year bonds yield 3.0%, investors shift money to the US
- Canadian bond yield rises — To attract buyers back, Canadian bonds must offer competitive yields
- Fixed mortgage rates rise — Because fixed rates are priced off Canadian bond yields
The correlation in practice
| Period | US 5-yr Treasury | Canada 5-yr Bond | Correlation |
|---|---|---|---|
| 2019 (pre-COVID) | 1.5%–2.5% | 1.3%–1.8% | Strong — moved together |
| 2020 (COVID) | 0.2%–0.5% | 0.3%–0.5% | Very strong — both collapsed |
| 2022 (inflation) | 2.5%–4.5% | 2.5%–3.8% | Strong — both surged |
| 2023 (peak) | 4.0%–5.0% | 3.2%–4.2% | Strong — both elevated |
| 2025–2026 | 3.5%–4.0% | 2.5%–3.0% | Moderate — Canada decoupling slightly |
The correlation isn’t perfect — Canadian economic conditions can cause partial decoupling — but US bond yields exert a persistent gravitational pull on Canadian fixed rates.
What this means for your fixed rate
| Scenario | US Treasury Yield Move | Canadian Bond Yield | Your Fixed Rate |
|---|---|---|---|
| Fed holds rates, US economy strong | US yields stay high | Canadian yields stay elevated | Fixed rates remain higher |
| Fed cuts, US economy softening | US yields decline | Canadian yields likely decline | Fixed rates may drop |
| US fiscal concerns push yields up | US yields spike | Canadian yields pulled higher | Fixed rates rise |
| Global flight to safety | US yields drop sharply | Canadian yields drop | Fixed rates may decline |
Channel 2: The interest rate gap and the loonie
The gap between Canadian and US interest rates directly affects the value of the Canadian dollar. This is arguably the most important constraint on Bank of Canada policy.
How the rate gap affects the dollar
| BoC Rate | Fed Rate | Gap | Effect on CAD |
|---|---|---|---|
| 2.75% | 4.50% | Canada −1.75% | CAD weakens vs USD |
| 3.50% | 4.50% | Canada −1.00% | Moderate CAD weakness |
| 4.50% | 4.50% | Equal | CAD stable |
| 4.50% | 3.50% | Canada +1.00% | CAD strengthens |
When Canadian rates are significantly below US rates, the Canadian dollar weakens because:
- Investors prefer higher US yields — money flows out of Canada
- Carry trade — borrowing in cheap CAD to invest in higher-yielding USD
- Portfolio rebalancing — pension funds and institutions rotate toward US assets
Why a weak loonie matters for your mortgage
| Weak Loonie Effect | Mortgage Impact |
|---|---|
| Imports cost more (30%+ of CPI basket) | Inflation rises → BoC may hold or raise rates |
| Gas prices rise (oil priced in USD) | Higher CPI → pressure to keep rates higher |
| Travel more expensive | Consumer spending shifts, affecting CPI |
| Reduced BoC flexibility | BoC can’t cut as far as it might want to |
| Foreign investment in real estate | May increase demand + prices in some markets |
Real-world example: 2024–2025
In 2024, the Bank of Canada began cutting the overnight rate (from 5.00%) while the Fed held rates at 5.25%–5.50%. The rate gap widened to over 2%, and the Canadian dollar fell below USD 0.70. This created a dilemma:
- The BoC wanted to support the weakening Canadian economy with lower rates
- But cutting too fast would weaken the loonie further, importing inflation
- The BoC had to pace its cuts partly based on Fed timing
This is why Canadian mortgage holders need to watch the Fed, not just the BoC.
Channel 3: US economic spillover
The US is Canada’s largest trading partner (~75% of exports). What happens in the US economy directly affects Canadian economic conditions.
| US Economic Event | Impact on Canada | Mortgage Rate Effect |
|---|---|---|
| US recession | Less demand for Canadian exports, job losses | BoC cuts rates → variable falls, fixed may fall |
| US growth boom | Canadian exports surge, jobs grow | BoC may hold/raise → rates stable or higher |
| US tariffs on Canada | Reduced exports, economic disruption | Complex — BoC may cut to support growth despite inflation risk |
| US housing bust | Less US demand, global risk aversion | Bond yields fall → fixed rates decline |
| US inflation surge | Imported via trade and energy | BoC restrained from cutting → rates higher |
How to monitor the Fed’s impact on your mortgage
Key indicators to watch
| Indicator | Where to Find It | What It Tells You |
|---|---|---|
| Fed funds rate | Federal Reserve website | Current US policy rate |
| Fed dot plot | Released quarterly (FOMC meetings) | Where Fed members expect rates to go |
| US 5-year Treasury yield | Financial news, CNBC | Direction for Canadian bond yields/fixed rates |
| USD/CAD exchange rate | Bank of Canada, Google | Whether the rate gap is straining the loonie |
| CME FedWatch tool | cmegroup.com | Market probability of next Fed move |
| US CPI and jobs data | Bureau of Labor Statistics | Whether the Fed will cut, hold, or raise |
How to use this in your mortgage decisions
| Scenario | What It Means for Canadian Rates | Strategy |
|---|---|---|
| Fed cutting, BoC cutting | Both bond yields and BoC rate declining | Variable and fixed rates both falling — good time for either |
| Fed on hold, BoC cutting | CAD weakening, BoC limited | Variable may not drop as fast as expected — consider fixed |
| Fed cutting, BoC on hold | CAD strengthening, Canadian bond yields declining | Fixed rates may drop — watch for opportunities |
| Fed hiking, BoC holding | Canadian bond yields pushed higher, CAD weakening | Fixed rates under upward pressure — lock in if rates are good |
The bottom line for Canadian borrowers
- The Fed constrains the BoC — Canada can’t diverge too far from US rates without currency consequences
- US bond yields drag Canadian bonds — even if the Canadian economy weakens, strong US yields keep Canadian fixed rates elevated
- Watch the rate gap — a widening gap (Canada « US) means limited BoC flexibility and potential upward pressure on rates
- Trade disruptions add complexity — tariffs, trade wars, or North American supply chain shifts create additional uncertainty