The crossword solution for the term TAXPAYER, E.G. is FILER, which is a five letter word. A taxpayer is an individual or organization that is legally obligated to pay taxes to the government. A FILER is someone who is responsible for filing taxes with the government. This includes submitting tax returns and other documents related to taxes. Filing taxes is an important part of being a taxpayer, as it ensures that the government receives the money it is owed.