The commitment, the first of the party’s election manifesto promises, will be paid for through an immediate 1p rise on all rates of income tax.
According to the Liberal Democrats their manifesto will set out a ‘five-point recovery plan’ for NHS and social care services in addition to this policy.
Tim Farron, Liberal Democrat leader, said: "Theresa May doesn't care about the NHS or social care.
“People are lying on trolleys in hospital corridors and she has done nothing. The truth is you can't have a strong NHS with a Hard Brexit.
"The Liberal Democrats will rescue the NHS and social care.”
The announcement from the Liberal Democrats comes after the Institute for Fiscal Studies (IFS) found spending on health has slowed to a rate not seen since the 1950s.
Norman Lamb, Liberal Democrat shadow secretary of state for health, added: “The NHS was once the envy of the world and this pledge is the first step in restoring it to where it should be.
“A penny on the pound to save the NHS is money well spent in our view.
“Simply providing more money on its own is not enough and that’s why this is just the first step in our plan to protect health and care services long-term.”
Lamb’s comments follow an IFS report in April which showed one in ten councils have slashed spending on adult social care by more than a quarter.
