Prime Minister Burnham told party delegates at his conference address that the government intends to abandon the existing pension "triple lock" from 2030 as part of a package designed to help pay for social care.
The triple lock is the mechanism that has governed annual increases to the state pension in recent years. By saying the current arrangement will end in 2030, the prime minister signalled a significant change to a policy long associated with protecting pensioners' incomes.
Burnham's speech, in which he outlined what he called a long-term plan for the United Kingdom, was emotional at times. He repeatedly returned to themes of responsibility and reform as he sought to explain why the government believes adjustments to pension policy are necessary to meet the demands of an aging population and rising care costs.
The move is likely to prompt scrutiny from pensioners' groups, opposition parties and others who monitor retirement income policy. The prime minister did not set out every detail of how the change will be implemented in the speech, but framed the decision as part of broader efforts to rebalance public spending to address social care needs.
Ministers will now face the task of explaining how the savings will be allocated and what safeguards, if any, will be offered to those approaching or already in retirement. The announcement marks a clear policy shift that will shape debates about welfare and spending in the years ahead.