tax
A charge assessed on an individual or on property for the purpose of supporting the functioning of the government. Such charges may be imposed on sale of property or goods, imports, exports, wages and income, privileges, and just about anything else that one can think of. Although usually thought of as being monetary in nature, it is not necessarily so.
The act of imposing a charge upon individuals or property by a government or other taxing authority; to strain or place weight upon.