The ongoing conflict involving Iran is already influencing the financial landscape in the UK, affecting everything from fuel prices to mortgage rates. As the situation evolves, the extent and duration of these economic implications will largely hinge on how quickly the conflict stabilises and how supply chains recover. Here’s a breakdown of the key areas likely to be impacted.
Fuel Prices on the Rise
Motorists across the UK are feeling the pinch at the petrol pump, with prices climbing steadily. Recent data from the RAC indicates that by Sunday, the average price of petrol had surged by 4.68 pence to reach 137.51 pence per litre, while diesel saw a more significant increase of 8.59 pence, hitting 150.97 pence per litre. Analysts warn that for every $10 rise in crude oil prices, petrol costs rise by approximately 7 pence per litre. With crude oil prices having soared over $30 since the onset of the conflict, it is anticipated that average petrol prices will soon exceed 140 pence per litre, and potentially breach the 150 pence mark if oil prices continue to rise.
While motoring organisations assure that fuel supplies remain stable, they are advising drivers to limit non-essential trips and to drive more efficiently to conserve fuel. The impact of rising petrol prices extends beyond just motorists; as transport costs increase, supermarkets may pass these costs onto consumers, leading to higher food prices.
Mortgage Rates Under Pressure
Before the outbreak of hostilities, there had been optimism regarding a decline in interest rates for fixed and variable mortgages. However, the current conflict has reversed this trend. Major lenders in the UK have begun to raise mortgage rates, driven by increased funding costs and a shift in expectations regarding the base borrowing rate.

As of 9 March, the average rate for a two-year fixed mortgage has climbed to 4.87%, while the average five-year fix stands at 4.98%. This marks the first time both rates have exceeded 5% since August of the previous year. Economic uncertainty often leads lenders to withdraw mortgage products altogether, limiting consumer choices. Adam French, head of consumer finance at Moneyfacts, noted that the withdrawal of mortgage deals typically indicates a rapid increase in funding costs, which outpaces incremental pricing adjustments.
Energy Costs and Heating Oil
Household energy bills remain somewhat insulated due to the price cap implemented by Ofgem, which will last until July. However, this cap is time-limited and does not apply to everyone. Although there is a forecasted decrease in energy prices in April, the trajectory of wholesale energy costs until late May will significantly influence household bills moving forward. Should prices remain elevated, millions could face sharp increases in their energy expenses.
Those opting for fixed energy prices are encountering a situation similar to that of mortgage seekers. Several energy providers have either removed their products or increased their pricing. For those reliant on heating oil, typically stored in tanks, the situation is particularly dire, as prices have reportedly more than doubled since the onset of the conflict. Emma Simpson, chief executive of Rural Action Derbyshire, remarked that consumers running low on heating oil cannot afford to wait for prices to decrease.
Inflation and Economic Outlook
At the start of March, inflation in the UK was projected to align with the Bank of England’s target rate of 2% over the next five years. However, these estimates were made before the escalation of the Iran conflict. Analysts now express doubts about the likelihood of achieving such stability, particularly given the unpredictable nature of the current military and economic landscape.

While a return to the peak inflation rate of 11.1% seen in October 2022 is deemed unlikely, the war’s implications could still drive up costs, particularly in essential goods and services. The Bank of England, tasked with controlling inflation, had previously indicated the potential for interest rate cuts this year, a sentiment that now appears less certain.
Why it Matters
The implications of the Iran conflict on the UK economy are profound and multifaceted. As rising fuel and mortgage costs strain household budgets, the overall cost of living will continue to be a pressing concern. With inflation and interest rates in flux, consumers must navigate a landscape of rising expenses and diminishing financial security. Understanding these dynamics is crucial for individuals looking to manage their finances effectively during these uncertain times.