The squeeze on winter fuel payments will force 100,000 pensioners into poverty in 2026, according to the Government’s own estimates.
Chancellor Rachel Reeves limited access to the benefit, worth up to £300 in a cost-saving measure as she sought to repair the nation’s finances.
The payment is being restricted to only those claiming pension credit from this winter, with the aim of saving the public purse £1.5 billion a year.
The move has been criticised by campaigners and opposition parties, while Sir Keir Starmer’s colleagues in Scottish Labour have set out plans to partially reverse it.
Work and Pensions Secretary Liz Kendall revealed the Government’s assessment of the impact in a letter to MPs, but stressed the figures did not take into account plans to increase the numbers on pension credit.
She told the Work and Pensions Committee: “The latest modelling shows that compared to the numbers that would have been in poverty without this policy, it is estimated that in each year in question there will be an additional 50,000 pensioners in relative poverty after housing costs in 2024-25, 2025-26 and 2027-28, instead.
“The modelling also shows that an additional 100,000 pensioners are estimated to be in relative poverty after housing costs in 2026-27, 2028-29 and 2029-30.”
Households in relative poverty have less than 60% of average (median) income in the current year.
The number of additional pensioners in absolute poverty – compared to the median in 2010/11 – is estimated to be 50,000 in each year.
Ms Kendall said the Labour Government had been “forced” to limit the payment due to the “£22 billion black hole” it blamed the Conservatives for leaving behind.
In her letter, she wrote: “Means-testing winter fuel payments was not a decision this Government wanted or expected to take. However, we were forced to take difficult decisions to balance the books in light of the £22 billion black hole we inherited.
“Given the dire state of the public finances, it’s right that we target support to those who need it most while we continue our work to fix the foundations and stabilise the economy – which is the best way to support pensioners in the long term and is what has allowed us to deliver our commitment to the triple lock.”
She said the “modelling does not take into account any impacts of the measures we are taking to increase pension credit take-up and to ensure pensioners get the benefits to which they are entitled”.
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Shadow work and pensions secretary Helen Whately said: “Finally the dam breaks and we get to see what Labour have known all along.
“Their winter fuel payment cuts are going to plunge 100,000 pensioners into poverty in the next few years.
“Clearly Keir Starmer feels like that’s a price worth paying to make a political point. But I don’t think those pensioners would agree with him.”
Liberal Democrat Treasury spokeswoman Daisy Cooper said: “Faced with these shocking figures, the Government must step up and do the right thing: finally reverse the winter fuel payment cut.”
Unease about the policy has led Scottish Labour to pledge to reinstate the payment for thousands more pensioners if they win the 2026 Holyrood election.
Under the plans, all pensioners would receive the payment initially, but it would be tapered over the years to reflect the income of recipients, with those who are better off receiving less in the longer term.
Party leader Anas Sarwar said: “Scottish Labour will take back this devolved power from the DWP, reinstate the winter fuel payment, and deliver a fairer system to ensure that everyone who needs support gets it.”