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Taxes were the financial foundation of ancient Rome, supporting its extensive administration, army, road construction, and other public investments. Two types of tributes played a key role in the Roman fiscal system: ordinary taxes (tributum ordinarium) and extraordinary taxes (tributum extraordinarium).
Ordinary taxes (tributum ordinarium)
This tax was Rome’s primary income source, collected regularly from citizens for the needs of the state. In the Roman Republic, it was initially introduced during periods of war and later became a tool to ensure financial stability. Generally, tributum ordinarium was levied on citizens who owned land (proprium) and was proportional to wealth. It was often collected in the form of a sum of money, but tributes in kind, such as grain or cattle, were also possible.
Extraordinary taxes (tributum extraordinarium)
Emergency taxes, however, were introduced ad hoc, usually in crises, such as wars, natural disasters, or other exceptional state expenses. They were imposed in special cases when the need for financing exceeded the standard capabilities of the Roman treasury. Interestingly, emergency taxes could also target specific groups, such as wealthier individuals, to increase their accountability to state needs.
As the Empire developed and power was centralized in the hands of the emperors, the tax system changed. Emperors introduced new types of taxes, and fiscal administration increased in complexity. Over time, emergency taxes became a more regular form of taxation, blurring the line between them and ordinary taxes.
