The Bank of Canada overnight rate is the most important number in Canadian lending. It directly controls what you pay on your variable mortgage, HELOC, and line of credit — and indirectly shapes the entire interest rate landscape. Here’s everything you need to know.
What is the overnight rate?
The overnight rate (officially the “target for the overnight rate”) is the interest rate at which major financial institutions borrow and lend money to each other for one-day (overnight) periods. The Bank of Canada sets this rate as its primary tool for controlling inflation and managing the economy.
| Term | Definition |
|---|---|
| Overnight rate | The BoC’s target for the rate at which banks lend to each other overnight |
| Operating band | The overnight rate ± 0.25% — the range within which overnight lending occurs |
| Bank rate | The top of the operating band (overnight rate + 0.25%) — the rate the BoC charges for emergency lending to banks |
| Deposit rate | The bottom of the operating band (overnight rate − 0.25%) — the rate the BoC pays on bank deposits |
How it works in practice
- Every day, banks settle millions of transactions among themselves
- At the end of the day, some banks have surplus funds and some have shortfalls
- Banks with shortfalls borrow from banks with surpluses — at approximately the overnight rate
- If no bank will lend, the BoC steps in as lender of last resort at the bank rate
- This system ensures the overnight rate stays near the BoC’s target
How the overnight rate reaches your mortgage
The chain from the BoC to your mortgage payment is short and direct for variable rates:
| Step | What Happens | Current Value (August 2026) |
|---|---|---|
| 1. BoC sets overnight rate | The policy rate decision | 2.25% |
| 2. Banks set prime rate | Overnight rate + 2.20% (by convention) | 4.45% |
| 3. Your variable rate | Prime rate minus your discount | e.g., 4.45% − 0.80% = 3.65% |
| 4. Your HELOC rate | Prime rate plus your premium | e.g., 4.45% + 0.50% = 4.95% |
Source: Bank of Canada Valet API, series V39079, as of 2026-08-26.
When the BoC changes the overnight rate by 0.25%:
| Product | Rate Change | Timing |
|---|---|---|
| Variable mortgage | Changes by 0.25% | 1–2 business days |
| HELOC | Changes by 0.25% | 1–2 business days |
| Personal line of credit | Changes by 0.25% | 1–2 business days |
| High-interest savings account | Changes by ~0.25% | Days to weeks |
| Fixed mortgage (existing) | No change | Rate locked until renewal |
| GICs (existing) | No change | Rate locked until maturity |
The 8 scheduled rate decisions
The Bank of Canada announces its rate decisions 8 times per year, on pre-determined dates spaced approximately 6 weeks apart. Four of these announcements coincide with the release of the Monetary Policy Report (MPR), which provides detailed economic analysis and forecasts.
What the BoC considers when setting the rate
| Factor | Raising the Rate | Lowering the Rate |
|---|---|---|
| Inflation | Above 2% target | Below 2% target |
| GDP growth | Strong growth, risk of overheating | Weak growth, risk of recession |
| Employment | Low unemployment, wage pressure | Rising unemployment |
| Consumer spending | Robust, driving inflation | Weak, economy slowing |
| Housing market | Overheating | Correcting or frozen |
| Global conditions | Global growth strong, commodity prices high | Global slowdown, trade disruption |
| Canadian dollar | CAD too weak (importing inflation) | CAD too strong (hurting exports) |
The BoC’s primary mandate is price stability — keeping inflation at the 2% target (within a 1%–3% control range). Employment and growth are secondary considerations that influence how aggressively the BoC pursues the inflation target.
Overnight rate history
The overnight rate has moved dramatically over the decades:
| Period | Rate Range | Context |
|---|---|---|
| 1990s | 3.00%–8.00% | Fighting high inflation, gradually declining |
| 2000–2001 | 5.75% → 2.00% | Dot-com bust, 9/11 recession |
| 2002–2007 | 2.00% → 4.50% | Economic expansion, housing boom |
| 2008–2009 | 4.50% → 0.25% | Global financial crisis — emergency cuts |
| 2010–2014 | 0.25% → 1.00% | Slow recovery, tentative hikes |
| 2015–2016 | 0.50% | Oil price crash, cuts to support economy |
| 2017–2018 | 0.50% → 1.75% | Gradual hiking cycle |
| 2020 | 1.75% → 0.25% | COVID-19 emergency cuts (three cuts in March) |
| 2022–2023 | 0.25% → 5.00% | Fastest hiking cycle in BoC history — fighting inflation |
| 2024–2026 | 5.00% → 2.25% | Easing cycle as inflation returned toward target |
Key observations
- The overnight rate has been below 1% for only 10 of the past 35 years — always during crises
- The fastest hike: 0.25% to 5.00% in just 16 months (March 2022 – July 2023)
- The BoC has never hesitated to make large emergency cuts during crises (100+ bps in one meeting)
- The current 2.25% rate sits near the low end of the Bank’s estimated neutral range
How the overnight rate differs from other Canadian rates
| Rate | What It Is | Who Sets It | Current (August 2026) |
|---|---|---|---|
| Overnight rate | BoC policy rate | Bank of Canada | 2.25% |
| Prime rate | Base rate for variable lending | Individual banks | 4.45% |
| 5-year GoC bond yield | Government borrowing cost | Bond markets | ~2.80% |
| 5-year fixed mortgage (posted) | Stress-test benchmark rate | Chartered banks | 6.09% |
| Variable mortgage (est. discounted) | Rate borrowers pay | Lenders (based on prime) | ~3.65% |
The overnight rate directly controls the prime rate and variable rates. It indirectly influences bond yields and fixed rates through expectations about future policy.
What happens when the BoC changes the overnight rate
A 0.25% cut — impact on a $500,000 variable mortgage
| Impact | Adjustable Payment Mortgage | Static Payment Mortgage |
|---|---|---|
| Rate change | 4.15% → 3.90% | 4.15% → 3.90% |
| Monthly payment change | ~$2,690 → ~$2,622 (−$68/month) | No change |
| Annual interest savings | ~$1,250 | ~$1,250 (redirected to principal) |
| 5-year savings if rate stays lower | ~$6,250 | ~$6,250 (in faster principal paydown) |
A 0.25% hike — impact on a $500,000 variable mortgage
| Impact | Adjustable Payment Mortgage | Static Payment Mortgage |
|---|---|---|
| Rate change | 4.15% → 4.40% | 4.15% → 4.40% |
| Monthly payment change | ~$2,690 → ~$2,758 (+$68/month) | No change |
| Annual interest cost increase | ~$1,250 | ~$1,250 (less goes to principal) |
| Risk | Higher payments strain budget | May approach trigger rate if rates keep rising |
How to track the overnight rate
- Bank of Canada website — official source for rate decisions, meeting dates, and Monetary Policy Reports (bankofcanada.ca)
- Rate decision dates — published annually, always on a Wednesday at 10:00 AM ET
- Overnight Index Swap (OIS) market — financial markets price in expected BoC moves before announcements. If OIS implies a 0.25% cut with 80%+ probability, the cut is largely priced in
- WealthNorth rate updates — we publish analysis after every BoC announcement
How to use this in your mortgage planning
If you have a variable mortgage
Your rate moves with every BoC decision. Know when the next announcement is and whether markets expect a change. Budget for the possibility of +/- 1.00% over any 12-month period.
If you’re choosing between fixed and variable
When the overnight rate is well above the neutral rate (~2.75%), there’s room for cuts — making variable attractive. When it’s at or below neutral, fixed offers protection if hikes come.
If you’re renewing
Check where the overnight rate is relative to neutral. If it’s at neutral, current variable rates are roughly the long-run baseline. If it’s above neutral, you may benefit from variable rates declining.