Chancellor says she is ready to help households with rising costs but stops short of setting out specific steps

Britain is likely to be hit by rising inflation because of the US war with Iran, the chancellor has said, as she suggested a ârapid de-escalationâ would be the best protection against a jump in energy prices.
Rachel Reeves stopped short of setting out any new relief for people who could be hit by rising prices, rebuffing calls to ditch a planned 5p rise in fuel duty in September.
The Conservatives plan to force a Commons vote on Tuesday over the rise, but Reeves said the competition watchdog had been ordered to keep a close eye on fuel pump prices and domestic heating oil costs to prevent wartime profiteering.
Both the chancellor and the prime minister, Keir Starmer, suggested the government could be prepared to intervene to protect UK households against major cost-of-living shocks to come at the next energy price cap, as oil prices surged past $100 (ÂŁ75) a barrel for the first time since 2022.
Late on Monday night, however, the price for Brent crude, the international benchmark, fell back to below $90 (ÂŁ70) from a high earlier in the day of $119.50 (ÂŁ89). The fall came after Donald Trump indicated to politicians during a speech in Florida that the conflict might end soon.
Starmer said a long-term war would affect the âlives and households of everybodyâ but said the government would seek to âget aheadâ if the conflict was prolonged.
US and Israeli warplanes launched new waves of strikes on targets across Iran on Monday, with crowds gathering in Tehran in support of Mojtaba Khamenei, the countryâs newly appointed supreme leader.
The warning from the chancellor came as:
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The price of Brent crude oil rocketed to as high as $119.50 on Sunday, a jump of 29%.
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The Bank of England is now expected to keep interest rates on hold through 2026, with a small possibility of a rise in 2027.
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The prospect of a prolonged conflict and higher inflation also pushed global markets lower.
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The AA said drivers could âconsider cutting out some non-essential journeys and changing their driving style to conserve fuelâ.
Most UK households will be protected in the short term by the energy price cap, but the UKâs reliance on gas from the Middle East makes it especially vulnerable to what amounts to a blockade of the strait of Hormuz, through which about 20% of the worldâs liquid natural gas is transported.
Iranâs security chief, Ali Larijani, said in a post on X on Monday that safe passage would not be restored âamid the fires ignited by the United States and Israel in the regionâ.
Analysts have said Iran is hoping that restricting the flow of oil to global markets and attacking energy infrastructure in the region will threaten sufficient damage to the global economy to force Trump to end the US offensive, and bring an end to the war on Tehranâs terms.
UK ministers are understood to be looking at ways to potentially mitigate the effects of rising costs on energy bills. Speaking in parliament on Monday, the chancellor said the economic impact of the situation in the Middle East âwill depend of course on its severity and its durationâ but said the movements seen already were âlikely to put upward pressure on inflation in the coming monthsâ.
Reeves, who spoke to G7 finance ministers earlier on Monday, said the Treasury was ready to support a coordinated release of collective International Energy Agency oil reserves.
Pressure is growing on the chancellor to go further. The Trades Union Congress said âworking people are now facing a Donald Trump-made cost of living crisisâ and said the government âmust stand ready to pull out all the stops and shield households and firms from this global shockâ.
More than 40 Labour MPs in rural seats have said in a new report that people reliant on heating oil face being plunged into poverty. About 1.5m UK homes are off the gas grid and are not protected by Ofgemâs energy price cap.
The report by the Labour Rural Research Group found that in recent days, some rural households had reported heating oil price increases of up to 117%.
âIn a matter of days since the war began with Iran, weâve seen off-grid oil prices surge by more than 100%, leaving thousands of UK rural households extremely vulnerable to off-grid energy price fluctuations,â the Suffolk Coastal MP Jenny Riddell-Carpenter said.
âMany thousands of families are now fearful that it will be impossible to buy oil to heat their home, and they are now longing for a mild spring. This volatility exposes rural Britain to greater challenges, and pushes more families into rural poverty. We urgently need a rural strategy that includes an energy price cap for off-grid homes.â

Reeves said discussions would be held on help for people reliant on heating oil and that petrol forecourt bosses had also been called into the Treasury and warned about price gouging.
âLet me be absolutely clear: I will not tolerate any company exploiting the current crisis to make excess profits at consumersâ expense,â she said.
MPs have begun to privately raise the alarm with the Treasury on how the government is communicating the crisis â saying they believe Starmer and Reeves should be making it more explicit who is to blame for the unfolding crisis and the potential hit to the cost of living, as well as saying that the government will help with measures to ease the problem.
YouGov polling on Monday found 74% of the public already expect the conflict to have a negative impact on their householdâs finances â including 35% who expect it to have a âveryâ negative impact.
Reeves told MPs the conflict âaffects us all, and we must respond to itâ but said she was âclear-eyedâ about her response, and that the government had already taken steps to shield the economy from global shocks.
âOur energy system is now more secure than it was at the outset of the Russia-Ukraine conflict,â she said, saying the UK was âless reliant on and less exposed to volatile international energy prices than we were at the outset of the Russia-Ukraine conflict, and that is welcomeâ.
But Reeves defended her decision to increase fuel duty, which will rise in stages from September this year, the first fuel duty increase in 15 years.
The chancellor said drivers would still pay less because of the freeze until September but the Conservatives have tabled a motion in parliament seeking to block the rise and force Labour MPs to publicly back or oppose the measure.


