tax collector
From Longman Dictionary of Contemporary Englishtax collectorˈtax colˌlector noun [countable] someone who works for the government and makes sure that people pay their taxesExamples from the Corpustax collector• Of course, the very concept of a popular tax collector is as oxymoronic as jumbo shrimp.• But the rich will always be better at hiding from the tax collector than the poor.