underoccupancy chargenoun [ S ]
uk/ʌn.dəˈrɒk.jə.pən.si ˌtʃɑːdʒ//ˌʌn.dɚˈɑː.kjə.pən.si ˌtʃɑːrdʒ/UKthe official 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
bedroom tax