UK's July CPI hits a four-month high: energy bill "flooding" impacts have arrived as expected, but a cooling in services inflation gives the Bank of England some breathing room.

After a brief summer respite, British households have been abruptly brought back to reality by the rise in energy bills. Data released by the Office for National Statistics (ONS) on Wednesday revealed that the consumer price index (CPI) rose by 2.9% year-on-year in July, up from 2.6% in June, marking the highest level since March this year. This reading is broadly in line with the median forecast from economists and slightly above the Bank of England's previous prediction of 2.8%. However, the formal reversal of the downward trend in inflation still casts a shadow over the economic outlook for the UK. The overall rebound aligns with expectations: Energy bills have become the "engine" of inflation, while the cooling of service sector inflation provides some relief. The core contradiction in the July inflation data lies in the energy-driven overall inflation rebound coexisting with the persistent cooling of domestic price pressures. The ONS indicated that the main drivers behind the rise in inflation in July were the categories of housing and household services. This directly reflects the quarterly price cap adjustments implemented by the UK energy regulator Ofgem on July 1, which raised the price cap on household gas and electricity bills by 13%, resulting in an average annual bill increase of approximately 221 to 1,862 per household. Specifically, gas prices surged by 14.7% month-on-month in July, marking the largest monthly increase since October 2022, while electricity prices also rose by 3.6%. However, inflationary pressures have not spread to broader economic sectors. Excluding energy, food, alcohol, and tobacco, the core CPI remained unchanged at 2.6% year-on-year for the third consecutive month. This reading is slightly above the economists' expected 2.5%, but it does not change the fundamental pattern of stabilized core inflation. The Bank of England is further reassured by the unexpected cooling of service inflation. The service sector inflation rate, a critical indicator of domestic economic pressures, fell from 3.6% in June to 3.4%. This is mainly due to the significant reduction in airfare increases in July (+11.7%) compared to the same period last year (+30.2%). The Consumer Prices Index including owner occupiers' housing costs (CPIH), the ONS's preferred measure of inflation, rose from 2.8% to 3.1%. Why hasnt the "energy shock" transformed into "widespread inflation"? This inflation rebound differs fundamentally from the energy crisis of 2022: the transmission mechanism has changed significantly. In 2022, rising energy prices quickly translated into increases in food, transport, and core goods prices, triggering widespread inflation. This time, the transmission effect has been noticeably constrained. The decline in petrol and diesel prices has played a crucial offsetting rolediesel prices fell by an average of 8.8 pence per litre in July, and airfare prices decreased by 11.6% year-on-year. Additionally, the decline in crude oil and refined product prices led to a 1.7% month-on-month drop in input prices, effectively curbing the spread of energy shocks into broader sectors. Moreover, the continued cooling of food inflation has provided consumers with some breathing room. In July 2026, the prices of food and non-alcoholic beverages rose by only 1.3% year-on-year, down from the previous month's 1.7%, registering the lowest level since September 2021. This category contributed only 0.14 percentage points to the annual CPI increase, also the lowest since 2021. Yael Selfin, Chief Economist at KPMG, pointed out that unlike the widespread cost increases driven by rising energy prices in 2022, the current weak labor market conditions help to limit the scale of similar cost transmission. This assessment aligns closely with labor market data released on Tuesday, which showed a continued cooling with a decline in employment and a slowdown in private sector wage growth. Market reaction: Pound rises slightly, interest rate hike bets cool Following the data release, the pound rose modestly against the dollar by about 0.1% to around 1.3550, although it remained trapped below the weekly range of 1.3570. Traders slightly reduced their bets on the Bank of England raising interest rates before the end of the year. The latest survey indicates that the vast majority of economists expect the Bank of England to maintain the benchmark interest rate at 3.75% for the remainder of 2026. This "uneventful" market reaction precisely confirms investors' expectations of the inflation rebound. Economists generally believe that the rise in inflation in July is primarily a result of base effects and one-time policy adjustments rather than a substantial deterioration in domestic price pressures. Weakness in the service sector is becoming a key buffer to suppress inflation's second-round effects. Data released on Tuesday showed continued cooling in the UK labor market with a decline in non-farm employment and a slowdown in private sector wage growth. This weak trend limits businesses' ability to pass on higher energy costs to consumers and provides justification for the Bank of England to maintain current interest rates. The Bank of England's dilemma: Inflation rebound vs. economic weakness, how long can it remain inactive? The July inflation data offers the Bank of England a subtle policy signal. Hawkish argument: CPI increased from 2.6% to 2.9%, and the Bank of England forecasts inflation will peak at 3.2% in the fourth quarter. Energy bills may rise again, along with the risks of drought and extreme weather possibly pushing food inflation higher in 2027, indicating that inflation may not have peaked yet. Dovish argument: Core inflation has remained steady at 2.6% for the third consecutive month, and service inflation unexpectedly cooled to 3.4%. The labor market continues to cool, with a slowdown in private sector wage growth. As KPMG Chief Economist Yael Selfin has pointed out, weakness in the labor market helps to limit the scale of cost transmission. According to a survey released on August 18, about 90% of economists expect that the Bank of England will not adjust interest rates in September or for the remainder of 2026, maintaining the benchmark rate at 3.75%. Although inflation is expected to stay above 2% until the second half of 2027, a slight majority of economists still anticipate at least one interest rate cut before mid-2027. Meanwhile, the market expects the Bank of England to raise rates at least once this year, with a probability of up to 86% for a December hike. Chancellor of the Exchequer John Healey responded to the data release by stating, "Inflation from the Iran war continues to affect domestic prices, but the UK economy is resilient." Inflation outlook: The clouds have not yet cleared. The July inflation data reveals the stark reality facing the UK economy: the "floodgate" of energy prices has just begun to open. Due to the delayed implementation of the price cap policy, British households had previously been largely shielded from the worst impacts of the Iran war. The nearly 15% surge in gas prices in July signifies the formal removal of this "shield." However, the rebound in inflation has not altered the Bank of England's policy trajectory. The unexpected cooling of service inflation, the ongoing weakness in the labor market, and the stabilization of core inflation provide decision-makers with reasons to "wait and see." The real test may come in Octoberwhen energy bills will rise again (albeit moderately), and the trajectory of conflicts in the Middle East will determine whether oil prices will continue to deliver new shocks to British consumers. David Rees, Head of Global Economic Research at Schroders, warns that prices for manufactured goods may rise in the coming months, and risks from drought and a super El Nio could substantially boost food inflation in 2027. Moreover, continued disruptions in the Strait of Hormuz leading to high oil prices have pushed Brent crude above $90 per barrel, which remains a concern for some Bank of England policymakers advocating for rate hikes.