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The ongoing conflict involving Iran is starting to ripple through the UK economy, affecting everything from fuel prices to mortgage rates. As tensions escalate, consumers are beginning to feel the financial pinch, with increased costs predicted to persist for some time. The extent of this impact will depend largely on how long the conflict endures and how swiftly supply chains can stabilise.
Fuel Prices on the Rise
Motorists have likely noticed a sharp uptick in petrol prices, which reached an 18-month peak of 140.6p per litre last Friday—an increase of nearly 8p since the onset of hostilities. Diesel prices have surged even higher, climbing nearly 17p to hit 159.2p. This spike has ignited a heated debate between petrol retailers and the government, with accusations of “profiteering” from the oil price surge leading to a clash at recent meetings.
Analysts highlight that a $10 rise in oil prices generally translates to an increase of about 7p at the pump. The volatility in crude prices reflects the unpredictable nature of the conflict and its potential influence on global markets. If oil prices remain elevated, petrol could average around 150p per litre in the near future. While motoring organisations assure the public that there are sufficient supplies, they recommend reducing unnecessary travel and driving more economically to help mitigate costs.
It’s important to remember that rising fuel prices don’t only affect drivers. Higher transport costs can lead to increased prices for goods and services across the board, particularly in supermarkets where transport expenses contribute directly to food prices.
Mortgage Rates: A Shift in Expectations
Before the outbreak of hostilities, many anticipated a gradual decrease in interest rates for fixed and variable mortgages. However, recent developments have reversed that trend. Major lenders have increased their rates in response to higher funding costs and a less optimistic outlook for base rates.

As of last Friday, the average rate for a two-year fixed mortgage rose to 5.10%, up from 4.84% earlier in March—the highest level since July. Five-year fixed mortgages also saw an increase, moving from 4.96% to 5.19%. In a climate of uncertainty, lenders are withdrawing mortgage products altogether, reducing choices for potential borrowers. More than 500 residential mortgage options have been taken off the market, although over 7,000 remain available. Adam French, head of consumer finance at Moneyfacts, notes that such withdrawals often indicate that funding costs have escalated too quickly for incremental price adjustments.
Energy Bills and Heating Oil Prices
Household energy bills currently benefit from a price cap set by Ofgem, which is in place until July for those on variable tariffs. However, this cap does not apply universally, and the situation could change depending on fluctuations in the wholesale energy market leading up to the summer months. If high wholesale costs persist, millions could face heightened energy prices.
The recent historical context of rising energy prices—following Covid and Russia’s invasion of Ukraine—has prompted the government to prepare for possible interventions similar to the Energy Price Guarantee introduced previously. Energy Secretary Ed Miliband indicated that the government is ready to act if the impact of the conflict necessitates such measures.
For those who rely on heating oil, the situation is more dire, as prices have reportedly more than doubled since the conflict began. Panic buying has further strained the supply, leaving many individuals in rural areas and Northern Ireland scrambling for help. Chancellor Rachel Reeves has announced that a support package for households grappling with high heating oil costs will be unveiled shortly, while competition authorities are investigating whether consumers are being treated fairly amid the price hikes.
Inflation and Interest Rates: A Complicated Outlook
Just a few weeks ago, inflation forecasts in the UK suggested a return to the Bank of England’s target of 2% over the next five years. However, the onset of the conflict has muddied those predictions. While analysts do not expect inflation to reach the peak of 11.1% witnessed in October 2022, the current volatility makes accurate forecasting increasingly challenging.

As the Bank of England strives to keep inflation in check, the prospect of interest rate cuts has become less certain. Analysts who had anticipated reductions in borrowing costs as early as March have now revised their expectations. Consequently, while borrowing may become more expensive, the potential for slightly higher savings returns exists as consumer behaviour shifts towards saving during times of uncertainty.
Wider Implications for Consumers
The ramifications of the Iran conflict extend beyond immediate financial concerns. The cost of holidays could rise, as jet fuel prices have also surged. Though airlines employ strategies to mitigate these costs, prolonged high fuel prices will likely lead to increased fares for consumers planning to travel in the upcoming months.
Why it Matters
The unfolding situation in Iran is not just a geopolitical issue; it has palpable effects on everyday consumers across the UK. With rising fuel costs, mortgage rates, and energy bills, many households could face significant financial strain in the months ahead. Understanding these dynamics is crucial for consumers to navigate their budgets effectively and prepare for potential further economic challenges. As the conflict evolves, so too will its impact on our wallets, making it essential for individuals to stay informed and proactive in managing their finances.