Citizens Advice warn that welfare reform is 'so much, so fast'
17 February 2011 Last updated at 12:03 GMT
The government is publishing its Welfare Reform Bill, which includes plans to combine all work-related benefits into a single universal credit.
There will also be a review into ways of curbing the growing numbers of people who are giving up work to claim sickness benefits.
Lizzie Iron, head of welfare policy at the Citizens Advice service, has said she is concerned about the scale and speed of the reforms.