Fixed vs Tracker Mortgage: What the BOE Path Says
Verdict
The fix (4.5%) is cheaper than the current tracker (5.24%).
Confidence: High
Break point: Tracker wins only if BOE cuts rates by 0.74pp or more.
The rate decision
The tracker starts cheaper at current BOE rates — but every 0.5% rise erodes that advantage and the fixed rate gives certainty.
The fixed rate of 4.5% is clearly more advantageous than the current tracker rate of 5.24%, as it provides payment certainty and eliminates the variability risk associated with fluctuating interest rates. By locking in the lower fixed rate, borrowers can predict their monthly payments without the concern of rising rates that could increase their financial burden. This stability not only aids in budgeting but also protects against potential future rate hikes, making the fixed option the superior choice for those prioritizing financial predictability.
The rate backdrop
The fixed rate locks in certainty; the tracker passes every BOE move directly to your monthly payment.
In the current Bank of England base rate environment, where the base rate is set at 4.5%, opting for a fixed-rate mortgage at this level is more cost-effective than a tracker mortgage currently priced at 5.24%. This disparity arises from the inherent tracker risk, as tracker rates are directly linked to the base rate and can fluctuate with future monetary policy changes, potentially leading to higher payments if rates rise further. Given the uncertainty surrounding inflation and economic conditions, locking in a fixed rate provides stability and predictability in monthly payments, making it a more attractive choice for borrowers in this volatile landscape. Thus, the fixed rate not only offers immediate savings but also shields borrowers from potential future increases in interest rates.
Worked example
Assumptions (illustrative): £200,000 mortgage · Fixed 4.5% vs Tracker 5.24%
| Option | Monthly payment | After 0.5% rise |
|---|---|---|
| Fixed (4.5%) | £1,112 | £1,112 (unchanged) |
| Tracker (5.24%) | £1,197 | £1,257 |
At current rates, the fixed is cheaper by £86/month. A 0.5% BOE rise would move the tracker to £1,257/month.
When this flips
This flips only when BOE rates move by more than 2.0pp in the direction that disadvantages the current choice. The certainty value of the fixed rate at 4.5% is high.
What to do next
| Your situation | Action | Why |
|---|---|---|
| Rates expected flat | Tracker likely cheaper | Effective tracker rate below fixed — no rate move needed to win |
| Rates expected to rise | Fix now | Each 0.5% rise erodes the tracker advantage |
| Cashflow sensitive | Fix for certainty | Monthly payment volatility is a real cost for stretched budgets |
| Rates expected to fall | Tracker wins clearly | Every cut reduces your payment automatically |
Sources and provenance
- boe_mpr_2026_02.pdf
- OECD_EO_116.pdf
Data as of: 2026-04-01
