Since the extience of the earliest human communites there were common needs that had to be satisfed. The original form of providing the needs for satisfing different community means wasnatural. When the money appeard and the gathering of revenue for financing community satisfaction appeared with it, it took the form of public finances. The further development of public revenues was related to the development of states or state forms and their socio-political systems. Public finances are studying the instruments, elements, effects and goals of collecting, allocating and spending public revenue to meet public expenditures and meet citizens' needs. The state budget is the base of financialinstruments of the state and a legal act that estimates revenues and determines expenses of the state for one year, in accordance with the law. The state budget is used for allocation of public goods to citizens, the redistribution of wealth and the achievement of stabilization goals.The modern state is characterized by meeting public needs, preceded by the collection of public revenues. The tasks of the state are becoming more and more extensive, which means that the state must create an increasing number of different financial instruments that will be able to obtain as much funds as possible to meet the growing public needs. The most important revenue-generating instrument of any state is taxes and they have a leading position among other instruments.