Britain's inflation rate has risen higher again. Figures from the Office for National Statistics show consumer prices rose 3.5% in the year to September, up from 3.1% in August and ahead of the 3.4% most economists had pencilled in. It is the highest reading in almost a year, and it arrives as the Bank of England, the Treasury and the financial markets are all recalibrating at once.

For most small and medium-sized firms, inflation is first and foremost a cost problem. Yet the forces pushing up the price of diesel and heating oil are also reshaping exchange rates and commodity prices, and that creates openings for directors who understand how the pieces connect. 

Why the pound has held strong

Rising inflation does not automatically weaken a currency. What matters is how markets expect the central bank to respond. The Bank of England has held Bank Rate at 3.75% since December 2025, but its September vote split six to three, with three members already backing a rise to 4%. After the latest figures, money markets priced an increase at the Bank's November meeting as close to certain.

Sterling has responded accordingly. The pound traded around $1.34 after the release, near a one-month high against the dollar, and has gained close to 2% against the euro during October, on course for its best month against the single currency since May 2023. The European Central Bank has raised rates twice this year, but its deposit rate sits at 2.5%, leaving a clear gap in the UK's favour.

When one data release can move several markets within minutes, visibility matters. Charting platforms such as [1]TradingView [2] let users place GBP/USD, EUR/GBP and Brent crude on synchronised charts in a single layout and set alerts around key price levels, so a busy director is not relying on yesterday's headlines.

What was behind September's jump

Transport drove most of the increase. The [3]ONS September bulletin [4] shows motor fuel prices running 29.8% higher than a year earlier, with petrol averaging 169.5p a litre and diesel 192.5p, the latter the highest since the summer of 2022. Kerosene, relied on by many off-grid homes and businesses for heating, climbed 22.7%.

Core inflation, which strips out energy, food, alcohol and tobacco, edged up from 2.6% to 2.8%, while services inflation rose to 3.7%. When underlying measures follow the headline, rate-setters take notice. Food is the outlier at just 1.3%, although the Food and Drink Federation expects food inflation [5] to arrive later and persist for longer as manufacturers work through higher costs.

Oil is Still Driving Prices

Energy is the thread running through every market. Brent crude has traded above $105 a barrel for much of the past fortnight and recently pushed beyond $110, as attacks on tankers near the Strait of Hormuz kept supply concerns alive. By mid-September the Bank had already noted that Brent and UK wholesale gas prices were up 36% and 78% respectively since its July forecast, and it now expects inflation to peak slightly above 4% early next year.

A sustained move of that kind gives commodity markets a clear narrative. It is also the variable most capable of reversing quickly, which is why some bank economists have identified a diplomatic breakthrough in the Middle East as the main risk to their rate-hike  forecasts.

Gold is trending in a different direction

Conventional wisdom says gold thrives when prices rise. This year has been less predictable. After setting a record above $5,500 an ounce in January, gold has eased back to around $4,100, more than a quarter lower, and has lost roughly 5% over the past month. Higher expected interest rates raise the opportunity cost of holding an asset that pays no income, and for now that effect has outweighed inflation worries. [6]calendar of 2026 MPC announcements [7] in advance, making it straightforward to plan around them.