Finance Explained Simply
Inflation4 September 2026

Bank of England Expected to Hold as UK Inflation Heads Back Above 3.5 Percent

Markets price an 86 percent chance the Bank leaves rates at 3.75 percent on 17 September, with energy costs pushing inflation up from 2.9 percent in July.

Bank of England Expected to Hold as UK Inflation Heads Back Above 3.5 PercentPhoto: Pexels
In brief: UK inflation is forecast to climb from 2.9 percent in July to around 3.5 percent by the final quarter of the year, and markets now put an 86 percent probability on the Bank of England holding rates at 3.75 percent on 17 September.

What happened

UK consumer price inflation stood at 2.9 percent in July 2026. Independent forecasters surveyed by HM Treasury in May expected CPI inflation to run at roughly 3.5 percent over October to December. CPI measures the change in the price of a representative basket of goods and services over twelve months, and the Bank of England has a target of 2 percent.

The driver is energy. The conflict in the Middle East has delivered a fresh energy price shock, with household bills expected to rise and businesses passing on higher transport and input costs. Inflation is now projected to peak above 3.5 percent in the third quarter rather than continuing to drift down towards target.

Evidence is already appearing in the retail data. UK shop prices reached their highest level in two years, and the housing market showed strain with a surprise drop in mortgage approvals in July.

The Bank Rate currently sits at 3.75 percent. Ahead of the Monetary Policy Committee meeting on 17 September, market implied probabilities show an 86.1 percent chance of no change and a 13.9 percent chance of an increase. A cut is barely priced at all, a striking shift from where expectations sat in the spring.

3.75%Bank Rate, with an 86 percent chance of no change on 17 September

Why it matters

The UK is heading into what economists call a stagflationary squeeze, where growth weakens while prices rise. GDP growth is expected to slow to 0.7 percent in 2026 from 1.3 percent in 2025, at the same time as inflation moves further away from target. Those two conditions demand opposite responses from a central bank, which is why the Bank of England is likely to do nothing at all.

For households, the practical consequence is that the relief many have been waiting for keeps receding. Some forecasters now expect only one cut this year with further easing pushed into 2027, a materially worse outlook than the multiple cuts markets were pricing twelve months ago.

Real incomes are the deeper issue. When wage growth trails price growth, living standards fall regardless of what the headline pay figure says. Inflation at 3.5 percent against pay settlements near 3 percent means the average household is quietly getting poorer each month.

There is also a feedback loop with the gilt market. Higher inflation expectations push bond yields up, which raises government borrowing costs and lending rates, which tightens conditions further without the Bank moving at all.

Explained simply

Imported energy inflation is like a leak in the roof. Interest rates are a dehumidifier in the living room. Turning it up makes the room drier and everyone colder, but it does absolutely nothing about the hole in the roof.

Interest rates work by making borrowing more expensive and saving more attractive, which reduces how much people and companies spend. Less spending means less pressure on prices. That works well when inflation comes from an economy running hot with too much demand.

It works poorly when inflation is imported. Nobody in Britain is buying more oil because rates are low, and raising rates does not persuade tankers to cross the Strait of Hormuz. All higher rates achieve against an energy shock is to squeeze domestic spending harder, which slows the economy without addressing the source.

So why not simply ignore it? Because the Bank fears second round effects. If workers see 3.5 percent inflation and demand 4 percent pay rises, and firms grant them and raise prices to cover the cost, a one off energy shock turns into persistent inflation. Preventing that is what the Bank is actually managing.

That is the reasoning behind holding rather than cutting. Holding says the Bank takes the inflation risk seriously without inflicting further damage on a slowing economy. It is the least bad option rather than a good one.

What it means for you

If your fixed rate mortgage ends in the next year, plan for a rate similar to or slightly above what is available today rather than a cheaper one. On a 250,000 pound repayment mortgage over 25 years, the difference between a 4.5 percent and a 5 percent rate is roughly 75 pounds a month, which is worth building into a budget now rather than discovering in a letter.

For savers, this is the upside. Easy access accounts paying around 4.5 percent are likely to hold up rather than fall quickly, and one year fixed bonds near 4.6 percent look reasonable against an outlook with few cuts in it. A Cash ISA shelters the interest from tax entirely, which for a higher rate taxpayer with a 500 pound personal savings allowance is often the difference between beating inflation and not.

On energy specifically, check whether a fixed tariff beats the price cap over a full twelve months rather than comparing against this months rate. Fixes that look slightly expensive today can be the cheaper option if wholesale costs are still climbing.

If you hold index linked investments or National Savings products tied to inflation, their relative value improves in this environment. Conventional fixed rate bonds held to maturity lose purchasing power when inflation runs above the coupon.

The bigger picture

Britain has now been above the 2 percent inflation target for most of five years. That is long enough for expectations to shift, which is precisely what central bankers most want to avoid, because expectations become self fulfilling through wage and pricing decisions.

The encouraging part is that this shock is external and therefore reversible. If Middle East tensions ease and energy prices fall back, inflation should decline quickly without the Bank needing to force it down through higher rates and lost jobs.

Watch three things: the September inflation release, the 17 September MPC vote split, and the October Budget. A committee splitting narrowly signals the next move is genuinely uncertain. A unanimous hold suggests rates stay exactly where they are for some months to come.

2.9%UK CPI inflation in July
3.5%forecast for Q4 2026
0.7%expected UK GDP growth in 2026
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