Noun
sin tax (plural sin taxes)
(idiomatic, politics) A government-imposed tax on a specific good, service, or activity which is legal but widely considered to be unwholesome or socially harmful, such as a tax on alcoholic beverages, tobacco products, or gambling.
The Revenue Program for 2015 includes incremental revenues of P50.63 billion from R. A. No. 10351 or the Sin Tax Reform Law of 2012. Francis Escudero