Fixed rates will fall in 2025 — but not as fast as borrowers hope
UK fixed mortgage rates are heading downward in 2025. That much is clear. What is far less clear — and what most forecasts quietly sidestep — is the pace, the floor, and how much the cuts that do arrive will actually benefit the average borrower sitting in front of a lender.
The Bank of England has already begun cutting Bank Rate, and markets are pricing in further reductions through 2025. But the relationship between Bank Rate and the fixed-rate mortgage deals you see on a lender's shelf is not a direct one. Understanding the mechanics is the difference between waiting too long and locking in at the wrong time.
Swap rates, not Bank Rate, are what actually move fixed mortgage pricing
Most borrowers watch the Bank of England base rate as though it were a remote control for their mortgage. It is not. Fixed-rate mortgages are priced off swap rates — the rates at which banks agree to exchange fixed and floating interest payments with each other over a defined period. Two-year and five-year swap rates are the direct inputs lenders use when pricing their products.
Swap rates are forward-looking. They already incorporate expectations of where Bank Rate will be in two or five years' time. This is why fixed-rate deals sometimes fall before the Bank of England has moved, and why they can rise even when Bank Rate holds steady — if inflation data or labour market figures shift the market's expectations for the future.
In practical terms, this means:
- A Bank Rate cut that markets already anticipated will produce very little movement in fixed mortgage rates on the day it is announced.
- A hotter-than-expected inflation print can push swap rates up and cause lenders to reprice their fixed deals upward within 24 hours — regardless of what the MPC does at its next meeting.
- The best fixed rates tend to arrive in windows, not in straight lines. Borrowers who understand this can time their applications more effectively.
For the bulk of 2024, two-year swap rates hovered between 4.0% and 4.7%. As of early 2025, they have edged below 4.0% on the expectation of continued Bank Rate cuts. That shift has already fed through into two-year fixed deals from major lenders entering the mid-to-high 3% range for borrowers with substantial equity. Further meaningful falls in swap rates — and therefore in fixed mortgage pricing — require either a faster-than-expected pace of Bank Rate cuts, or inflation falling more decisively than the Bank of England currently projects.
The Bank of England is cutting — but cautiously, and for good reason
The Monetary Policy Committee began cutting Bank Rate in August 2024, reducing it from its peak of 5.25%. Markets entered 2025 pricing in a terminal rate somewhere around 3.5%–4.0% by the end of the year, implying perhaps three or four further cuts of 25 basis points each.
That is a plausible path, but it assumes inflation continues to behave. UK services inflation — which the MPC watches more closely than headline CPI — has proven stubbornly persistent. Wage growth, while moderating, remains above the level consistent with a 2% inflation target. The Bank will not sacrifice its credibility on inflation to provide relief to mortgage borrowers. It will move only as fast as the data allow.
What this means in practical terms for borrowers: do not expect to see widely available two-year fixed rates at 3.0% or below before late 2025 at the earliest, and even that depends on inflation and global economic conditions co-operating. Five-year fixed rates, which markets currently price into the high 3% range for strong applicants, are unlikely to drop dramatically further in 2025. The five-year swap curve already reflects much of the anticipated cutting cycle.
For portfolio landlords and property investors assessing buy-to-let mortgages, this plateau in five-year rates is particularly relevant. Stress tests for buy-to-let affordability are often calculated against a stressed rate above the product rate — so even a 0.25% improvement in the headline rate can meaningfully change the borrowing capacity on a given property.
The strongest counter-argument: global shocks could reverse everything
Any honest forecast must account for the scenario where rates do not fall as expected — or where they rise again. This is not a remote possibility. It happened repeatedly between 2021 and 2023, as inflation proved far more persistent than central banks predicted.
The specific risks in 2025 include:
- Renewed energy price volatility, driven by geopolitical disruption, which could push UK headline CPI back above 3.5% and force the MPC to pause its cutting cycle.
- US Federal Reserve policy divergence — if the Fed holds rates higher for longer, or reverses course, UK gilt yields tend to follow, which feeds directly into swap rates and mortgage pricing.
- Domestic fiscal pressure — higher-than-expected government borrowing could push UK gilt yields up independently of Bank Rate, widening the spread that lenders need to cover their cost of funds.
These are not tail risks. They are live possibilities. A borrower who holds off fixing on the assumption that rates will fall by another 0.75% in the next six months is making a speculative bet, not a safe one. The trajectory is downward, but the path is not smooth and reversals are entirely possible.
Waiting is a strategy — but it carries its own cost
Borrowers approaching the end of a fixed-rate deal face a genuine dilemma. Revert to the standard variable rate (SVR) — which currently sits at 7.5%–8.5% with most high-street lenders — and you are paying a very high price for the optionality of being able to fix later at a lower rate. Fix now at, say, 4.1% on a two-year deal, and you lock in a significant improvement over SVR while retaining the ability to review again in 2027 by which point rates could plausibly be lower still.
The maths on staying on SVR rarely stacks up. On a £300,000 repayment mortgage with 20 years remaining, the difference between a 4.1% two-year fix and an 8.0% SVR is roughly £700–£800 per month. Waiting six months to save 0.25% on your next fixed rate would take years to recoup through lower payments.
The more nuanced version of this argument applies to borrowers who are six to twelve months away from their current fix expiring. Many lenders allow you to secure a product rate three to six months ahead of completion. Doing so locks in today's pricing with the ability to switch to a cheaper deal if rates fall further before drawdown. This removes the need to time the market perfectly.
The position, restated with nuance
Fixed mortgage rates in the UK will be lower by the end of 2025 than they are at the start of it. That is a reasonable base case. But the falls will be gradual rather than dramatic, they will arrive in windows rather than trends, and they are not guaranteed — global and domestic risks could interrupt the cycle at any point.
For most borrowers, the practical conclusion is straightforward: do not wait on an SVR hoping for materially lower rates, do explore securing a rate now with a product that allows you to switch if better deals emerge, and take advice tailored to your specific loan size, equity position, and income structure before making a decision.
Key takeaways
- Fixed mortgage rates are set by swap rates, not directly by Bank Rate — falls in Bank Rate that markets already expect produce little immediate change in mortgage pricing.
- The Bank of England is likely to cut Bank Rate three to four times in 2025, but only if inflation continues to moderate — services inflation remains the key variable to watch.
- Two-year fixed rates in the mid-to-high 3% range are already available to borrowers with strong equity; further falls below 3.5% widely are unlikely before late 2025 at the earliest.
- Staying on an SVR of 7.5%–8.5% while waiting for rates to fall further is almost always the more expensive strategy when modelled over a 12-month period.
- Securing a rate three to six months ahead of your current deal expiry gives you downside protection while preserving the ability to switch if cheaper products emerge.
Working with Agnes Mortgage
Agnes Mortgage is a whole-of-market UK mortgage broker specialising in residential, buy-to-let, and complex-income cases, with access to over 100 lenders including those who do not deal directly with the public. If you are weighing whether to fix now or wait — or if your income structure makes standard lender calculators unreliable — book a private consultation at /#contact to speak directly with your named broker.
Frequently asked questions
Will UK mortgage rates go down in 2025?
Yes, the broad direction is downward. The Bank of England has already begun cutting Bank Rate from its 5.25% peak, and markets expect further cuts through 2025. However, fixed mortgage rates are priced off swap rates — which already reflect anticipated cuts — so the falls in actual mortgage deals will be gradual rather than dramatic.
When will 5-year fixed mortgage rates fall below 4% in the UK?
Many five-year fixed deals for borrowers with 25–40% equity are already available below 4% as of early 2025. Broadly available sub-4% pricing for borrowers with lower equity or more complex income depends on swap rates falling further, which requires inflation to moderate consistently and the Bank of England to continue its cutting cycle without interruption.
Should I fix my mortgage now or wait for rates to fall further?
For most borrowers, fixing now beats reverting to or staying on a standard variable rate (SVR), which sits at 7.5%–8.5% with most major lenders. The monthly cost difference between an SVR and a competitive fixed rate typically outweighs any saving from waiting several months for a marginally lower fix. Securing a rate three to six months ahead of your deal expiry is a middle-ground strategy.
How does the Bank of England base rate affect fixed mortgage rates?
The Bank of England base rate has an indirect effect on fixed mortgage rates. Fixed deals are priced primarily off swap rates, which are market-determined and already price in expectations of future base rate movements. A base rate cut that was widely anticipated will therefore produce very little movement in fixed mortgage pricing on the day it is announced.
What is a swap rate and why does it matter for my mortgage?
A swap rate is the rate at which banks exchange fixed and floating interest payments over a set term — typically two or five years. Lenders use these rates as the base cost of funding fixed-rate mortgages, adding a margin on top. When swap rates rise, fixed mortgage deals become more expensive within days; when they fall, lenders gradually reprice downward.