One of the country's biggest trade unions has urged the Government to scrap Trident, levy a tax on empty properties and target "fat cat" bankers to raise billions of pounds next year.
Unison published a "no-cut recovery budget" it said could raise over £70 billion.
The union said its proposals provided a clear alternative to the "Tory rhetoric" of slashed public sector spending it warned would cause long-term damage and send the UK into a "lost decade" of severe depression.
Unison called for fairer taxes, a curb on tax relief for the rich, a levy on financial transactions, improved occupational health and an end to central government consultants.
Bringing private finance schemes back in-house would also save billions of pounds, the union said.
General secretary Dave Prentis said: "Cuts are not inevitable. They are a dangerous option that could shock the system into a prolonged depression.
"The Government was right to take action to prevent financial meltdown. Now they need to keep calm, and carry on investing to create jobs. Now is not the time to push public sector workers on the dole - people need them.
"Public spending is the jump-start our economy needs, and it must be kept up. The Tories are wrong when they say short-term pain will bring long-term gain and recovery.
"The result will be long-term pain, suffered by millions, left with long periods of unemployment, and an economy stagnating with low growth. Our public sector will be hit with lasting damage, just when communities need their help most."
Unison said £4.7 billion could be raised every year by introducing a 50% tax rate on incomes over £100,000, £10 billion every year by reforming tax havens and residence rules to reduce tax avoidance by corporations and 'non-domiciled' residents and £1.8 billion next year by cancelling Trident.
