In his speech, Sir Keir will say the 2010s were the “lost decade” for the NHS and add: “People have every right to be angry. It left the NHS unable to be there for patients today, and totally unprepared for the challenges and opportunities of tomorrow.

“The NHS is at a fork in the road and we have a choice about how it should meet these rising demands.

“Raise taxes on working people or reform to secure its future. We know working people can’t afford to pay more, so it is reform or die.”

He will also say waiting times in A&E are leading to avoidable deaths, adding: “People’s loved ones who could have been saved. Doctors and nurses whose whole vocation is to save them – hampered from doing so. It’s devastating.”

Shadow health secretary Victoria Atkins said the government had still yet to come up with meaningful plans for reform.

“The Labour government will be judged on its actions. It has stopped new hospitals from being built, scrapped our social care reforms and taken money from pensioners to fund unsustainable pay rises with no gains in productivity.”

She also defended the Conservative government’s record, saying the NHS budget had been increased during the last Parliament.

Former Conservative health minister Lord Bethell, who served for 18 months during the pandemic, said action was taken by the previous government, although “maybe not enough”.

He told BBC Radio 4’s The World Tonight that the reason money was not spent was not “some kind of conspiracy to wreck the NHS” – but because “it has been impossible to persuade the Treasury that we will get a return on investment by investing in NHS capital”.