Home › Words › T › taxpaytaxpaytaxpay means to pay tax upon.EtymologyBack-formation from taxpayer or taxpaying.verbTo pay tax upon.e.g.“If he chooses not to bottle in bond, he taxpays the spirits in bulk at 100° proof and then, after taxpayment, reduces the product with water to any proof down to 80° (usually between 86° and 80°).” — 1956, United States. Congress. House. Committee on Ways and Means, Excise Tax Technical and Administrative Problems:Definitions & examples from Wiktionary (CC BY-SA 3.0).