bedroom tax
noun [ S ] UK informal uk/ˈbed.ruːm ˌtæks/ /ˈbed.rʊm ˌtæks/ us/ˈbed.ruːm ˌtæks/ /ˈbed.rʊm ˌtæks/
（俗称）睡房税（英国政府2012年开始推行的紧缩政策，削减有空置睡房的社会福利房住户所享有的福利）
an informal name for a UK government policy introduced in 2012 that reduced the amount of housing benefit (= money to help poorer people pay their rent) paid to people living in houses that were considered to have more bedrooms than they needed
Compare: underoccupancy charge