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The ongoing conflict between the United States, Israel, and Iran is casting a long shadow over the financial landscape in the UK. As the war escalates, British consumers are grappling with rising fuel prices, increasing mortgage rates, and potentially higher energy bills. The extent to which these costs will persist hinges on the conflict’s duration and the ability of supply chains and economies to recover swiftly. Here, we examine the key areas of concern for households across the country.
Fuel Prices: A Surge at the Pumps
Motorists in the UK have already felt the impact of geopolitical tensions at the petrol station. According to the RAC, average petrol prices soared to an 18-month peak of 140.6 pence per litre by Friday, reflecting an increase of nearly 8 pence since the onset of hostilities. Diesel prices experienced an even steeper rise, climbing by almost 17 pence to reach 159.2 pence. This surge has sparked a contentious debate between fuel retailers and the government, with the former accusing officials of employing “inflammatory language” by insinuating that firms were profiting from the oil price spike.
Analysts indicate that for every $10 increase in crude oil prices, consumers can expect an approximate 7 pence rise at the pump. As crude prices continue to fluctuate based on the conflict’s developments and statements from the White House, the possibility of average petrol prices reaching 150 pence per litre looms if the situation persists. While motoring organisations suggest that supply levels remain adequate, they advocate for reduced non-essential travel and more fuel-efficient driving practices to mitigate costs.
Mortgage Rates: A Shift in Trends
Prior to the outbreak of conflict, there was optimism regarding a gradual decline in interest rates for fixed-rate mortgages. However, the current climate has prompted some of the UK’s largest lenders to reverse this trend. As funding costs rise, mortgage rates for two-year fixed deals increased to 5.04% by Thursday, up from 4.84% earlier in March—marking the highest level since July. Similarly, five-year mortgage rates rose from 4.96% to 5.13%, representing the steepest pricing since April.

In times of economic instability, lenders often withdraw mortgage products, limiting consumer choice. Data from Moneyfacts indicates that over 500 residential mortgage offerings have been removed from the market, although 7,147 remain available. Adam French, head of consumer finance at Moneyfacts, noted that lenders pulling deals frequently signifies a rapid shift in funding costs that cannot be accommodated through standard price adjustments.
Energy Bills and Heating Oil Prices: A Looming Crisis
In terms of energy, UK households have some protection due to the price cap established by Ofgem, which governs electricity and gas bills in England, Wales, and Scotland. However, this cap is temporary and does not extend to all consumers. Currently set to last until July, the cap has seen a decrease in energy prices anticipated for April, but the wholesale market’s performance until late May will play a crucial role in determining future pricing.
A sustained spike in wholesale energy costs could lead to significant increases in household energy bills come summer. Energy Secretary Ed Miliband has indicated that government intervention could occur should the conflict’s impact necessitate it, although specifics depend on the scale of the crisis. Meanwhile, those seeking to secure fixed energy rates are facing a similar challenge to mortgage seekers, as some providers withdraw offers or raise prices amid geopolitical uncertainty.
Heating oil users are particularly vulnerable, as prices have reportedly more than doubled since the conflict began. This has led to panic buying, adding further strain to supply. Emma Simpson, chief executive of Rural Action Derbyshire, highlighted the predicament of rural households relying on heating oil, stating, “Anyone running low on oil right now doesn’t have the luxury of waiting for prices to fall.” Chancellor Rachel Reeves has announced impending support for households struggling with rising heating oil costs, with details expected shortly.
Inflation and Interest Rates: A New Economic Reality
In early March, the Office for Budget Responsibility (OBR) projected UK inflation would stabilise around the Bank of England’s target of 2% over the next five years. However, the outbreak of conflict has rendered those forecasts increasingly precarious. Analysts assert that while inflation may not reach the previous peak of 11.1% recorded in October 2022, the ongoing volatility complicates any accurate estimation.

The Bank of England’s primary tool for managing inflation—interest rates—now faces a challenging landscape. Following a rate-setting committee meeting in February, there was speculation regarding potential reductions in borrowing costs later in the year. However, analysts now view those prospects with skepticism. Consequently, while borrowing may become costlier, savings accounts could offer slightly better returns as consumers gravitate towards hoarding cash in uncertain times.
Economic Implications: The Broader Picture
The ramifications of the Iran conflict extend beyond immediate financial concerns, with potential long-term effects on consumer behaviour and overall economic growth. Travel costs may rise as jet fuel prices increase, limiting holiday options for many. Airlines, while utilising hedging strategies to cushion against fuel price surges, may still be compelled to pass on costs through elevated fares as the conflict persists.
Why it Matters
The intersection of geopolitical conflict and economic stability underscores the fragility of the current financial environment in the UK. The rising costs of living, compounded by fluctuating mortgage rates and energy prices, pose significant challenges for households already navigating post-pandemic recovery. As the situation in Iran evolves, the implications for everyday expenses and financial planning will be profound, compelling consumers to adapt in an increasingly uncertain economic landscape. The need for government intervention and strategic policy responses will be crucial in protecting vulnerable populations from the adverse effects of sustained conflict.