Bedroom tax (also known as under occupancy charge or the spare room subsidy) was introduced as part of the Welfare Reforms in April 2013. This means that if you live in a property which has one or more spare room then you will receive less entitlement to housing benefit.
If you have one spare bedroom you will lose 14% of your entitled housing benefit.
If you have two or more spare bedrooms you will lose 25% of your entitlement to housing benefit