A first-time buyer’s mortgage is usually their largest single financial commitment for at least a decade. The fixed-or-tracker decision shapes how that commitment behaves over the next two to five years—predictable monthly payments, or the possibility of saving (or paying) more if rates move.
What follows is a walkthrough of how the choice plays out in 2026, the structural differences between the two products, and where each one wins for which kind of buyer.
What’s the difference
A fixed-rate mortgage holds your interest rate constant for an agreed period—usually 2, 3, 5, or 10 years. Whatever happens to base rates, your payment does not change.
A tracker mortgage moves with the Bank of England base rate plus a margin set by the lender (e.g. base + 0.85%). When base rises, your payment rises. When it falls, your payment falls.
A third category—discounted variable—is fading from the market in 2026, but worth recognising: a discount off the lender’s standard variable rate (SVR), with no protection if the SVR itself moves. Most mainstream advisers steer first-timers away from these.
Indicative pricing in 2026
Roughly indicative best-buy rates for a 25-year mortgage at 75% LTV, early 2026:
| Product | Rate (indicative) |
|---|---|
| 2-year fixed | 4.20% |
| 3-year fixed | 4.10% |
| 5-year fixed | 4.05% |
| 10-year fixed | 4.45% |
| 2-year tracker (no ERC) | 4.05% |
| 5-year tracker (with ERC) | 3.95% |
Trackers typically start about 0.10–0.40 percentage points below the equivalent fix. The trade-off is no payment certainty in either direction.
When a fixed rate wins
Take a fix when:
- Your monthly payment matters more than your rate. First-time buyers, families with tight budgets, anyone for whom a £100/month rise would create real stress rather than a budget tweak.
- You want a known number to plan against for two to five years—useful if you are saving for something specific.
- You expect rates to rise or stay flat. If your central view is “next move is up”, you would rather lock now.
- You are close to the limits of affordability. A stress test passed at 4.0% might fail at 5.5%; a fix removes the risk that the failure ever shows up in your statement.
When a tracker wins
Take a tracker when:
- You expect rates to fall. If your central view is that base rate will be lower in 12–18 months, the tracker captures that decline as it happens.
- You value flexibility. Trackers usually have no early repayment charges, meaning you can overpay or remortgage freely.
- You can comfortably absorb rises. A 2-percentage-point increase being uncomfortable but not catastrophic is the right level of comfort for a tracker.
- You are near the end of a mortgage term, where the certainty of a fix has less value than the optionality of leaving early without paying for it.
The 2-year vs 5-year fix decision
Within fixes, the most common dilemma sits between 2 and 5 years.
Two-year arguments:
- Often a slightly lower rate than the equivalent 5-year (this is market-dependent—not always true).
- Flexibility to remortgage in two years if rates fall.
- Suits people who expect to move within 2–3 years, where porting the mortgage may not be possible.
Five-year arguments:
- Longer payment certainty.
- One round of remortgage admin instead of two.
- Avoids the risk of being forced to remortgage into a higher-rate environment if rates have moved against you.
A working rule: if your central forecast is that rates will be lower in two years, take the 2-year. If your central forecast is that rates are roughly stable or higher, take the 5-year. The decision is more about your view on direction than about timing the absolute level.
In 2026, with base rate having stabilised, the case for 5-year fixes is weaker than it was in 2022 but stronger than it was in 2017—which is to say, neither obvious nor irrelevant.
Early repayment charges (ERCs)—the trap
A fixed-rate mortgage typically has an ERC if you redeem before the fixed period ends. Standard tapering on a 5-year fix:
- Year 1: 5% of outstanding balance.
- Year 2: 4%.
- Year 3: 3%.
- Year 4: 2%.
- Year 5: 1%.
On a £200,000 mortgage in year 2, that is an £8,000 charge to leave. Real money rather than abstract.
ERCs apply if you:
- Sell the home and do not port the mortgage to the next property.
- Overpay above the lender’s annual cap (commonly 10% of balance per year).
- Remortgage to a different lender mid-term.
ERCs do not apply if you:
- Move home and port your mortgage to the new property (subject to lender approval—check this isn’t a polite “yes” rather than a binding one).
- Stay below the annual overpayment cap.
If you might move within two years, ask specifically about portability and whether the new property would meet the lender’s criteria. A “yes in principle” is not the same as a “yes at the point of moving”.
Tracker variants worth knowing
Two variants are worth recognising:
- Lifetime tracker—tracks base rate for the full mortgage term with no ERCs. Headline rate is higher than short-term trackers, but flexibility is total.
- Tracker with collar—floors the rate at a minimum even if base rates fall further. Worth checking the small print, particularly in environments where rate cuts are plausible.
A handful of lenders offer tracker for life with no ERCs at rates only slightly above the best 5-year fix. For investors and those with irregular incomes, this is a quietly excellent product that does not get the marketing attention it deserves.
How to think about base rate forecasts
The rate you eventually pay depends on the path of base rates. Three honest observations:
- Markets price expected moves already. If everyone knows base rate is heading to 3% by year-end, the 1-year tracker margin already reflects that.
- You don’t need to predict the path. You only need a view on the direction relative to current expectations.
- The last decade has shown that 1–3% rate moves can land quickly. Any tracker should be sized so you survive a 2-percentage-point rise without rearranging your life around it.
A worked example
£200,000 mortgage, 25-year term, two scenarios.
Scenario A: 5-year fix at 4.05%
- Monthly payment: £1,062.
- Total paid in years 1–5: £63,720.
- Outstanding at end of year 5: £176,200.
Scenario B: 5-year tracker, base + 0.95% (starts at 3.85%, then drifts)
- Year 1 monthly: £1,034 (base 2.90%).
- Year 2: £1,043 (base 3.00%).
- Year 3: £1,002 (base 2.50%).
- Year 4: £972 (base 2.10%).
- Year 5: £972 (base 2.10%).
- Total paid: £60,348.
If rates fall as in Scenario B, the tracker saves about £3,400 over five years. If instead rates climbed to base 5%, the tracker would cost £4,500–£5,500 more than the fix. The tracker pays you to be right about direction; the fix pays you to be wrong.
What I’d choose, by buyer type
- First-time buyers, tight on affordability—5-year fix.
- Buyers with 25%+ deposit and steady income—2-year fix or 5-year tracker, whichever fits your view.
- Buyers planning to move within two years—2-year fix with portability, or a no-ERC tracker.
- High earners with substantial savings and overpayment intentions—a no-ERC tracker, with the option to overpay aggressively.
The fix-or-tracker decision is more about cash flow and risk tolerance than timing the market. Pick the product that lets you sleep through the next two to five years, then forget about it until renewal.
For the broader walkthrough of getting a first mortgage approved, see first-time buyer mortgage UK 2026 walkthrough.
Frequently asked questions
- Which is cheaper, a fixed or tracker mortgage in 2026?
Trackers usually start 0.10–0.40 percentage points below the equivalent fixed at the point of sale, but their cost over the term depends on what the Bank of England base rate does. A fix locks certainty in at the cost of upside if rates fall and the comfort of unchanged payments if rates rise.
- Should I choose a 2-year or 5-year fix?
A 2-year fix gives you a remortgage option sooner, which suits anyone who thinks rates will be lower in two years. A 5-year fix gives longer payment certainty at usually a slightly higher rate. Your view on rate direction relative to current expectations decides it more than your view of the absolute level.
- What is an early repayment charge?
A penalty for exiting a fixed or discounted mortgage before the term ends—typically 1–5% of the outstanding balance, tapered across the years (often 5% in year 1, falling to 1% in year 5). Trackers without ERCs offer the option to overpay or remortgage at any time, which is why some borrowers take a slightly higher headline rate on them deliberately.
