THE "bedroom tax" affects all working-age housing benefit claimants who are deemed to have one or more extra bedrooms in their council or housing association home.
This includes separated parents who share the care of their children, families where young children have a small bedroom each, foster carers, and disabled people who have their home specially adapted for their needs.
Monica Burns, regional manager of the National Housing Federation, said: "The Government's bedroom tax is flawed and will unfairly penalise thousands of people who have lived in their homes for years, raised families and contributed to their communities.
"The one-size-fits-all approach takes no account of disabled people's adapted homes, of foster parents who need rooms to take children in or of parents sharing custody who will lose the room for their child at weekends.
Many people will find themselves having to move into more expensive privately rented properties – adding to the overall housing benefit bill."