Liz Truss has insisted she is “completely committed” to the triple lock on state pensions just a day after Downing Street triggered a backlash by indicating it could be ditched.

The Prime Minister told MPs on Wednesday that she and Chancellor Jeremy Hunt will be increasing pensions in line with inflation, which currently stands at more than 10%.

Ministers were considering ditching the manifesto promise due to the squeeze on the public finances in the wake of the mini-budget fiasco.

ECONOMY Inflation
(PA Graphics)

Ms Truss faced a fresh wave of anger after No 10 said the policy was under review and her new Chancellor failed to commit to it as he seeks to plug a multibillion-pound black hole.

But she told Prime Minister’s Questions: “We’ve been clear in our manifesto that we will maintain the triple lock and I’m completely committed to it – so is the Chancellor.”

On Twitter later, she said “protecting the triple lock” will “ensure pensioners get the most generous support”.

Downing Street said the decision was taken “jointly” by Ms Truss and Mr Hunt on Wednesday morning ahead of her appearance at the despatch box.

The Prime Minister’s official spokesman said it reflects the “unique position” of pensioners who are unable to increase their income through work.

“She and the Chancellor have discussed and agreed the position the Prime Minister set out this morning,” the spokesman said.

However, Ms Truss continues to face a rebellion on another front after she refused to give the same commitment to increasing benefits in line with inflation.

Tory John Baron urged her to show “compassion in politics” by maintaining the inflation link.

Ms Truss said: “We will always work to protect the most vulnerable”, but stopped short of using the same firm language she reserved for pensions.

Existing policy dictates that, from April next year, the state pension and benefits should increase by 10.1%, the figure for Consumer Price Index inflation in September.

Tory critics have been threatening to rebel if Ms Truss backtracks on the commitment on welfare payments, which would hit claimants with real-terms cuts.

The Prime Minister declined to give a commitment to also increase benefits in line with inflation, while her spokesman said no decisions have been taken.

On Tuesday, the spokesman said he could not make “any commitments” on the pensions triple lock.

A day earlier, Mr Hunt raised the possibility that the triple lock could be scrapped, telling the Commons he would not make any commitments on “individual policy areas”.

But Ms Truss’s subsequent firm commitment to maintaining the policy appears to be designed to head off increased Conservative anger.

Tory MPs Maria Caulfield and Steve Double had already declared they would not vote to end the triple lock.

“Pensioners should not be paying the price for the cost-of-living crisis, whether caused by the war in Ukraine or mini-budgets,” Ms Caulfield tweeted.

Liberal Democrat work and pensions spokeswoman Wendy Chamberlain said the Government had been “dragged kicking and screaming by their own backbench’s backlash into doing the right thing”.

“This is a party in utter chaos, that can’t keep its own policies straight from day to day, let alone through the winter,” she added.

Campaigners had warned that failing to keep pensions in line with rising prices would be “devastating” and a “flagrant breach of trust”.

In response to the announcement of September’s inflation figures on Wednesday, Mr Hunt did not refer to the pensions promise but instead said help would be targeted at the most vulnerable.

The Tory manifesto in 2019 committed to the triple lock, which guarantees the state pension will increase in line with the highest figure of average earnings, inflation or 2.5%.

Mr Hunt said: “I understand that families across the country are struggling with rising prices and higher energy bills.

“This Government will prioritise help for the most vulnerable while delivering wider economic stability and driving long-term growth that will help everyone.”

The triple lock had been temporarily suspended for 2022-23 because earnings soared as people returned to work from furlough and coronavirus restrictions, but it was expected to be restored before inflation soared.

Age UK’s charity director, Caroline Abrahams, said the rate of inflation “only strengthens the case for reinstating the triple lock” and warned Ms Truss that breaking the promise would be “devastating for the millions of older people who rely on the state pension”.

She said: “Knowing their state pension would keep pace with rising prices because of the triple lock has given precious hope to many older people at a time of great anxiety. For the Government to take that away from them now would be a hammer blow, as well as a flagrant breach of trust.”

The Institute for Fiscal Studies has estimated that each percentage point increase in inflation would add £2.4 billion a year in pension and welfare spending from April.

The Office for Budget Responsibility had estimated a 7.5% inflation level, so the 10.1% figure would add billions to plans for the welfare bill.

But the Resolution Foundation think tank, which focuses on living standards, warned the Government against seeking a quick saving at a time when a “bleak outlook means that family incomes will continue to fall sharply again next year”.

The foundation said that linking increases to earnings – at around 5.5% – rather than inflation would save £5.6 billion next year if applied to pensioner benefits – state pension and pension credit – and a further £2.4 billion if applied to working-age benefits.

The think tank’s senior economist, Jack Leslie, said: “While the significant Treasury savings may look tempting in the context of its attempts to fill its fiscal hole, the cost to 10 million working-age families and almost every pensioner would be huge amid the deepest cost-of-living crisis for half a century.”

The Chancellor is expected to set out his plans for pensions and benefits in his October 31 statement.