Prime Minister Sir Keir Starmer has promised to get more people into work with reforms to overhaul job centres and more mental-health funding.
Sir Keir said the government had inherited a country that "isn't working", and the changes would tackle the biggest drivers of unemployment and inactivity.
But many details of what the reforms will mean in practice have not been confirmed, and a review of sickness benefits will not begin until next year.
The Conservatives said the proposals showed Labour was "not prepared to take the tough but necessary choices to bring down the benefits bill".