The 3-Year Fixed Mortgage Rate Is 5 Basis Points Cheaper Than the 5-Year — and It Breaks Even at 4.42%
The bond curve offers a 20-basis-point discount for funding three years instead of five; lenders pass on five. The shorter term only wins if your October 2029 renewal prints below 4.42%.
Toronto, 21 October 2026 — The bottom line: the best 3-year fixed mortgage rate in Canada today is 4.29% insured, and the best five-year fixed is 4.34%. That is a five-basis-point discount for giving up two years of certainty. The bond market that funds both loans is offering lenders a 20-basis-point discount over the same gap: the three-year Government of Canada benchmark closed at 3.44% on 19 October against 3.64% at five years. On a $500,000 mortgage amortized over 25 years, the shorter term saves you $13.77 a month, and it stops paying the moment your October 2029 renewal prints above 4.42%. The bond curve's own implied forward rate says that renewal lands near 4.79%.
The Bank of Canada has held its policy rate at 2.25% since the 2 September decision, with prime at 4.45%. The next decision, with a Monetary Policy Report, is 28 October. None of that changes the arithmetic below, because the arithmetic is about the shape of the fixed-rate curve, not the level of the overnight rate.
Where the fixed-rate curve actually sits
Most renewal conversations in Canada are framed as fixed against variable. That skips a question with more money in it: which fixed term. The curve is not a straight line, and the five-year is not the cheapest point on it.
| Term | Best insured fixed | Best uninsured fixed | Payment on $500,000, 25-yr am. |
|---|---|---|---|
| 1-year | 4.64% | 4.89% | $2,806.41 |
| 2-year | 4.44% | 4.54% | $2,750.71 |
| 3-year | 4.29% | 4.39% | $2,709.29 |
| 4-year | 4.29% | 4.29% | $2,709.29 |
| 5-year | 4.34% | 4.39% | $2,723.07 |
| 5-year variable | 3.25% | 3.40% | $2,430.83 |
Rates are the lowest advertised figures aggregated on 20 October 2026; payments use Canadian semi-annual compounding. A second aggregator reading the same market that day put the three-year at 4.34% and the four-year at 4.29%, so treat those two as effectively tied and the five-year as a few points behind.
The useful fact in that table is the dip. The 3-year fixed mortgage rate and the four-year sit at the bottom, the five-year is five basis points higher, and the one-year is 35 basis points higher than either. Lenders are not pricing a straight ladder.
The 3-year fixed mortgage rate discount is 5 basis points, not 20
Fixed mortgage rates are funded off Government of Canada bonds of matching term, so the spread between the mortgage and the bond is the lender's gross margin. Here is what that margin looks like across the curve, using the 19 October benchmark yields.
| Term | GoC benchmark yield, 19 Oct | Best insured fixed | Spread |
|---|---|---|---|
| 2-year | 3.33% | 4.44% | 111 bps |
| 3-year | 3.44% | 4.29% | 85 bps |
| 5-year | 3.64% | 4.34% | 70 bps |
| 10-year | 3.93% | n/a | n/a |
The bond curve hands lenders 20 basis points for funding three years instead of five. They pass five of those on. The other 15 stay with the lender as a wider margin on the shorter book, which is why the 3-year fixed mortgage rate looks less like a bargain once you line it up against its own funding cost.
A 3-year fixed mortgage rate also brings the borrower back to the table in 2029, and if rates are higher then, that renewal reprices in the lender's favour. Our piece on the 5-year bond yield and fixed mortgage rates walks through the funding mechanism.
What the 3-year fixed mortgage rate has to renew at to win
Five basis points over three years is $13.77 a month, or $495.78 across 36 payments. That is the entire upfront prize. Whether the 3-year fixed mortgage rate wins depends on one number nobody knows: the rate you renew at in October 2029.
So solve it backwards. Take a $500,000 mortgage on a 25-year amortization. Run the 3-year fixed mortgage rate at 4.29% for 36 months, then renew the remaining balance for a two-year term at rate X on the remaining 22-year amortization. Compare the total of 60 payments plus the balance still owed against the same borrower taking 4.34% for the full five years. Every figure below is a month-by-month amortization run, not an approximation.
| Path | Payment, first 36 months | Balance after 36 months | Total 5-year cost | Versus 5-year fixed |
|---|---|---|---|---|
| 5-year fixed at 4.34% | $2,723.07 | $464,298.70 | $601,194.98 | — |
| 3-year at 4.29%, renew at 3.50% | $2,709.29 | $464,068.17 | $592,895.35 | $8,299.63 cheaper |
| 3-year at 4.29%, renew at 4.00% | $2,709.29 | $464,068.17 | $597,390.68 | $3,804.30 cheaper |
| 3-year at 4.29%, renew at 4.42% | $2,709.29 | $464,068.17 | $601,194.98 | break-even |
| 3-year at 4.29%, renew at 5.00% | $2,709.29 | $464,068.17 | $606,389.92 | $5,194.94 dearer |
| 3-year at 4.29%, renew at 6.00% | $2,709.29 | $464,068.17 | $615,394.46 | $14,199.48 dearer |
The break-even is 4.42%. If a two-year fixed in October 2029 is cheaper than 4.42%, the 3-year fixed mortgage rate was the right call. If it is dearer, you paid for the privilege of a $13.77 monthly saving.
Note how thin the cushion is. Today's two-year fixed is 4.44% — already two basis points above the break-even. You are not betting that rates fall. You are betting that the two-year rate three years from now is no higher than the two-year rate right now.
The bond market's own answer is 4.79%
You do not have to guess what the market thinks that 2029 renewal looks like, because the shape of the curve already contains an answer. If the three-year yield is 3.44% and the five-year is 3.64%, the two-year rate implied to start three years from now is 3.94%. That is simple arithmetic on the two yields, not a forecast.
Add the 85-basis-point spread lenders currently charge over three-year funding, and the curve's implied October 2029 renewal is roughly 4.79% — about 37 basis points above the 4.42% break-even. On the market's own pricing, taking a 3-year fixed mortgage rate today costs roughly $3,300 more over five years than taking the five-year.
Two cautions. Forward rates are a market expectation embedded in today's prices, and they regularly turn out wrong in both directions. And the spread will not be 85 basis points in 2029; it will be whatever competition and funding conditions make it. The forward rate is a benchmark for your own view, not a prediction. Our summary of what the big banks are forecasting for 2027 shows how widely professional views on the same curve diverge.
Why the curve moved: the data behind it
The five-year benchmark yield went from 3.54% on 16 October to 3.64% on 19 October, a 10-basis-point move in one session, on the morning September CPI landed. Headline inflation came in at 3.1% year over year, up from 3.0% in each of the prior two months. Gasoline was up 27.8% and contributed 1.1 percentage points of the 3.1% on its own.
The core measures went the other way. CPI-trim was 1.8% and CPI-median 1.9%, both inside the Bank's target range. But their three-month annualized average rose to 2.6% from 2.3%, and the share of CPI components rising faster than 3% jumped to 47.8% from 25.9% in August. That breadth figure is what moved the bond market.
Against that, the labour market is weakening. The September Labour Force Survey, released 9 October, showed employment down 68,000 after a 42,000 decline in August, with unemployment at 6.5% and wage growth of 2.3%. Two months of job losses argue for patience; broadening price pressure argues against it. That tension is the reason the curve is upward-sloping at all, and the reason the 28 October decision and Monetary Policy Report are worth reading rather than skipping.
The four-year is the cheapest term nobody shops
The quiet result in the first table is the four-year. At 4.29% insured it matches the 3-year fixed mortgage rate exactly, and at 4.29% uninsured it beats every other uninsured term on the board. You pay the same rate as the three-year and buy a fourth year of certainty for nothing.
Run the same break-even. Four years at 4.29%, then one year at X, against five years at 4.34%: the four-year path breaks even at a 4.56% one-year renewal in October 2030, a 22-basis-point wider cushion than the three-year gets. It is the better-value short term, and most borrowers never ask for a quote on it because lenders do not advertise it.
When a shorter term still makes sense
Break-even arithmetic is not the only input. A 3-year fixed mortgage rate earns its keep when you have a date in mind:
- You expect to sell inside three years. Matching the term to your horizon avoids an interest rate differential penalty, which on a fixed mortgage runs far above three months' interest.
- You are in a bruised-credit or stated-income file today and expect to qualify at an A lender by 2029. A shorter term gets you to that repricing sooner.
- You are carrying a rate you consider punitive and want the option to refinance into a better market without a large penalty.
- A divorce, a business sale or a maturing investment will change the balance materially inside three years.
Absent one of those, the five basis points is not a reason on its own.
What to do this week
- Ask your broker for quotes on all five fixed terms, plus the variable, on the same file and the same day. Most renewal offers quote one term.
- Ask specifically for the four-year. It is rarely volunteered and currently ties the lowest rate on the board.
- Get the break-even calculated on your own balance and amortization. The arithmetic scales; the dollar figures do not.
- Confirm whether your renewal is insured or uninsured before comparing anything. The uninsured one-year is 60 basis points above the uninsured four-year.
- Secure a rate hold before 28 October if your renewal is inside 120 days. A hold costs nothing and protects you through the decision. See how rate holds work.
- Decide the term question before the fixed-versus-variable question. The variable at 3.25% is 109 basis points below the five-year fixed, which is a separate decision with its own arithmetic.
- Write down the renewal rate you are implicitly betting on. If you cannot defend a number below 4.42%, the shorter term is a preference, not a calculation.
Common questions
Is a 3-year fixed mortgage rate better than a 5-year right now?
On price alone it is five basis points cheaper, worth $13.77 a month on $500,000. It only comes out ahead over five years if your October 2029 renewal is below 4.42%. The bond curve's implied forward rate points to about 4.79%, which favours the longer term, though forward rates are market expectations that change.
Why is the five-year not the cheapest fixed term?
Lenders price each term off the matching Government of Canada bond. The bond curve is upward-sloping right now, so longer funding costs more. Lenders have absorbed most of that by compressing their five-year margin to 70 basis points against 85 on the three-year and 111 on the two-year, which flattens the mortgage curve relative to the bond curve and leaves the 3-year fixed mortgage rate only five basis points below the five-year.
Does the 28 October Bank of Canada decision change the 3-year fixed mortgage rate?
Not directly. The policy rate sets prime, which drives variable rates. Fixed rates follow bond yields, which move on what the decision and the Monetary Policy Report imply about inflation and growth rather than on the rate itself. A surprise in either direction can move the five-year yield several basis points within hours. If you are weighing the two, our piece on choosing variable or fixed in late 2026 sets out both sides.
Rates are the lowest advertised figures from aggregators on 20 October 2026 and change without notice. Bond yields are Bank of Canada benchmark closes for 19 October 2026. Payment and break-even figures are calculated, not quoted, and assume no prepayments. No rate, forecast or approval is guaranteed.
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