区費 is read as くひ (kuhi) and means ward expenses.
くひ
kuhi
くかん
interval
く
district (e.g. electoral)
くぶん
division
くべつ
distinction
くいき
area (e.g. in programming languages)
くかく
くやくしょ
ward office
くぎる
to punctuate
くない
in the ward or borough
くちょう
head of a ward
くりつ
established by a ward
くみん
ward residents