UK inflation rose ahead of the central bank's interest rate decision, narrowing the window for holding rates steady.

UK inflation rose further ahead of the central bank’s interest rate decision, as energy price shocks continued to feed through to household bills and consumer spending, squeezing the Bank of England’s room to hold rates steady. On 16 September, data released by the UK Office for National Statistics showed that the consumer price index (CPI) rose 3.1% year-on-year in August—up from 2.9% in July and the highest since March this year—broadly in line with market expectations. Rising gasoline and diesel prices were the main drivers, while higher household energy bills also contributed to the overall inflation uptick. The Bank of England is set to hold its Monetary Policy Committee (MPC) meeting on Thursday. Markets widely expect the central bank to keep its base rate unchanged at 3.75%. However, if energy shocks continue pushing up inflation, markets have begun pricing in a potential rate hike as early as November. Following the release of the inflation data, traders’ implied probability of a rate hike this week fell from 35% to 25%, suggesting markets still see a high likelihood of the Bank maintaining its wait-and-see stance in the near term. Meanwhile, rising inflation has also increased fiscal pressure on the government. UK government bond yields had surged earlier, reducing the government’s fiscal headroom by more than half—further constraining policy flexibility ahead of the October budget announcement. Energy prices emerge as the primary driver of inflationary pressures The acceleration in August inflation was driven mainly by energy prices. The UK Office for National Statistics noted that sharp increases in gasoline and diesel prices were the top contributor to the monthly CPI rise; airfare prices and factory-gate prices also rose, while higher household energy bills provided additional upward support. In early July, the UK energy regulator Ofgem raised the household energy price cap by 13%, directly lifting electricity and gas prices. At the same time, Brent crude oil recently rebounded above USD 100 per barrel, and Ofgem has already announced plans to raise the energy price cap again in October—suggesting energy prices may continue supporting inflation over the coming months. David Rees, Schroders’ Global Economics Head, said UK inflation could rise further over the coming months, as energy, industrial goods, and food prices continue passing through to end consumers. According to the Wall Street Journal, markets currently expect UK CPI to reach or even exceed 4% early next year—twice the Bank of England’s 2% target. Core inflation remains stable, temporarily preserving room for the Bank to hold rates However, the rise in headline inflation does not mean price pressures have broadened across the economy. The core inflation rate—excluding energy and food—held steady at 2.6% in August, while services inflation—a key focus for the Bank of England—remained stable at 3.4%. This suggests current inflationary pressures remain largely concentrated in external factors such as energy, rather than evolving into broader domestic price pressures. Francesco Pesole, ING strategist, stated there is “still no evidence of inflationary pressures spreading beyond energy,” lending support to dovish voices within the Bank.

Hold steady! The Bank of England kept its interest rate unchanged at 3.75% as expected—but warned of persistent inflationary pressures.

The Bank of England held its base rate steady on Thursday but sent a clear signal: it stands ready to tighten monetary policy if persistently high energy prices trigger broad and sustained inflationary pressures—a stance aligned with the Federal Reserve’s decision announced the same day. The Bank’s Monetary Policy Committee (MPC) voted to maintain the base rate at 3.75%, a level unchanged since December last year. Bank of England Governor Andrew Bailey stated: “Our responsibility is to ensure any rise in inflation proves temporary.” Three of the nine MPC members voted in favour of raising the base rate to 4%, reflecting heightened concern among some officials about the risk of secondary inflationary effects. The pound edged up 0.08% against the US dollar following the announcement, trading at USD 1.3376. Felix Feather, economist at Aberdeen, remarked, “This was a slightly more hawkish pause than expected from the Bank of England.” Growing dissent: Three members vote for a hike to 4% Of the nine MPC members, Megan Greene, Huw Pill, and Catherine Mann voted to raise the base rate by 25 basis points to 4%; the remaining six voted to hold. Greene pointed out that UK inflation has remained above target for nearly five years, and new supply-side pressures are emerging—including a second disruption to a critical energy chokepoint in the Red Sea, alongside AI hardware supply-chain constraints. She stated, “Acting pre-emptively with a rate hike now could reduce the probability of second-round inflationary effects taking root.” Pill emphasized the “profound uncertainty” surrounding the outlook for energy prices, noting that such uncertainty “could persist for an extended and indeterminate period,” rendering fine-tuned monetary policy adjustments perilous. He explicitly stated that raising rates now would “send a clear and unambiguous signal to markets that we are both willing and able to respond to inflationary risks emanating from Gulf-region developments.”

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