Tanni Grey-Thompson's concerns over Universal Credit plan
17 October 2012 Last updated at 11:28 BST
An inquiry led by Baroness Tanni Grey-Thompson claims up to 500,000 disabled people and their families will be worse off under Universal Credit if current plans go ahead.
Universal Credit is a new single payment for people who are looking for work or on a low income.
But the inquiry warned that cuts to the child disability additions and to the severe disability premium are likely to result in disabled people and their families struggling to pay for basic essentials such as food and heating.
Baroness Grey Thompson spoke to BBC Radio Wales' Felicity Evans.