If you want to understand where fixed mortgage rates are heading, don’t watch the Bank of Canada — watch the bond market. Fixed mortgage rates in Canada are directly tied to Government of Canada bond yields, and understanding this relationship gives you a major edge when timing your mortgage decision.
The core relationship
| Rate Type | What Drives It | Key Benchmark |
|---|---|---|
| Fixed mortgage rates | Government of Canada bond yields | 5-year GoC bond yield |
| Variable mortgage rates | Bank of Canada overnight rate → prime rate | BoC policy rate |
These are two separate mechanisms. Fixed rates and variable rates can move in opposite directions at the same time.
How fixed rates are set
Lenders fund fixed-rate mortgages by borrowing in the bond market. Their cost of funds is the Government of Canada bond yield. They add a spread (their profit margin plus risk buffer) on top.
Fixed mortgage rate = Government of Canada bond yield + lender spread
Example (April 2026)
| Component | Value |
|---|---|
| 5-year GoC bond yield | ~2.80% |
| Lender spread | ~1.50% |
| 5-year fixed mortgage rate | ~4.30% |
When bond yields rise by 0.25%, fixed mortgage rates typically rise by a similar amount within 1–2 weeks. When bond yields fall, rates fall.
What moves bond yields
Bond yields reflect what investors expect for the future. The main drivers:
| Factor | Effect on Bond Yields | Effect on Fixed Rates |
|---|---|---|
| Higher inflation expectations | Yields rise ↑ | Rates rise ↑ |
| Stronger economic growth | Yields rise ↑ | Rates rise ↑ |
| US Treasury yields rising | Yields rise ↑ (correlation) | Rates rise ↑ |
| Bank of Canada expected to hike | Yields rise ↑ | Rates rise ↑ |
| Recession fears | Yields fall ↓ | Rates fall ↓ |
| Global uncertainty (flight to safety) | Yields fall ↓ | Rates fall ↓ |
| Bank of Canada expected to cut | Yields fall ↓ | Rates fall ↓ |
| Rising government debt supply | Yields rise ↑ | Rates rise ↑ |
The spread: lender profit margin
The spread between bond yields and mortgage rates is not fixed — it varies based on economic conditions and competition.
| Period | Typical Spread | Why |
|---|---|---|
| Normal economic conditions | 1.50%–1.80% | Standard risk and profit margin |
| Highly competitive market | 1.20%–1.50% | Lenders compete aggressively for business |
| Economic uncertainty/crisis | 2.00%–2.50%+ | Lenders increase risk premium |
| Post-pandemic (2020–2022) | 1.80%–2.30% | Elevated risk pricing |
| Recent (2024–2026) | 1.40%–1.80% | Normalizing as economy stabilizes |
A wider spread means lenders are charging more above their cost of funds — often a signal of perceived risk in the economy or housing market.
How variable rates work (different mechanism)
For contrast — variable rates follow a completely different path:
| Step | What Happens |
|---|---|
| 1. Bank of Canada sets overnight rate | Currently 2.75% (March 2026) |
| 2. Banks set prime rate | Overnight rate + 2.20% = 4.95% |
| 3. Lender sets variable mortgage rate | Prime rate − discount (e.g., 4.95% − 0.80% = 4.15%) |
Variable rates change immediately when the Bank of Canada adjusts the overnight rate. Fixed rates don’t — they respond to bond market movements, which may anticipate or diverge from BoC actions.
Why fixed and variable rates can diverge
| Scenario | What Happens |
|---|---|
| BoC cutting rates, economy improving | Variable rates fall; but bond yields may rise on growth expectations → fixed rates rise |
| BoC holding rates, global uncertainty | Variable rates stable; bond yields fall on flight to safety → fixed rates fall |
| BoC hiking rates, inflation persistent | Variable rates rise; bond yields already priced this in → fixed rates may be stable |
| BoC cutting rates, recession | Variable rates fall; bond yields fall → both fall |
This is why “waiting for rates to drop” is complicated. Variable rates follow the BoC path. Fixed rates follow the bond market — which moves on expectations, not just current policy.
Historical context: Bond yields and fixed rates
| Year | 5-Year GoC Bond Yield | Best 5-Year Fixed Rate | Spread |
|---|---|---|---|
| 2019 | 1.50% | 2.69% | 1.19% |
| 2020 (pandemic low) | 0.36% | 1.89% | 1.53% |
| 2021 | 0.95% | 2.14% | 1.19% |
| 2022 (rate hike cycle) | 3.30% | 5.34% | 2.04% |
| 2023 | 3.80% | 5.59% | 1.79% |
| 2024 | 3.10% | 4.89% | 1.79% |
| 2025 | 2.70% | 4.34% | 1.64% |
| 2026 (current) | ~2.80% | ~4.30% | ~1.50% |
Practical implications
If you’re choosing between fixed and variable
| Scenario | Consideration |
|---|---|
| Bond yields trending down | Fixed rates may continue to fall — consider a shorter term or variable |
| Bond yields rising | Lock in a fixed rate before they go higher |
| Wide spread (>2.0%) | Fixed rates are expensive relative to risk — variable may be better value |
| Narrow spread (<1.5%) | Fixed rates are competitively priced — good time to lock in |
If you’re timing a fixed-rate mortgage
| Action | What to Watch |
|---|---|
| About to buy a home | Check the 5-year GoC bond yield trend. If rising, lock in your rate hold quickly |
| Renewing in 3–6 months | Watch bond yields. If they’re falling, waiting may get you a lower rate |
| Deciding when to break/refinance | A sustained bond yield decline signals fixed rates may drop further |
Where to check bond yields
| Source | How to Access |
|---|---|
| Bank of Canada website | Bank of Canada bond yield data (free) |
| Financial media | Globe & Mail, BNN Bloomberg report on bond yields |
| Your mortgage broker | Ask what bond yields are doing — they track this daily |
Related reading
- Fixed vs Variable Mortgage Rate
- Mortgage Rate Forecast 2026
- Mortgage Rate History
- Bank of Canada Rate History
- How to Get the Best Mortgage Rate
- How Are Mortgage Rates Determined? — The full picture beyond bond yields
- Interest Rate Forecast Canada — Where rates are heading next