Octroi (French pronunciation: [ɔktʁwa]; Old French: octroyer, to grant, authorize; Lat. auctor) is a local tax collected on various articles brought into a district for consumption.
Octroi taxes have a respectable antiquity, being known in Roman times as vectigalia. These vectigalia were either the portorium, a tax on the entry from or departure to the provinces (those cities which were allowed to levy the portorium shared the profits with the public treasury); the ansarium or foricarium, a duty levied at the entrance to towns; or the edulia, sales imposts levied in markets. Vectigalia were levied on wine and certain articles of food, but it was seldom that the cities were allowed to use the whole of the profits of the taxes. Anglican Bishop Charles Ellicott suggested that the role of Matthew the tax collector in the gospels (Matthew 9:9) was "to collect the octroi levied on the fish, fruit, and other produce that made up the exports and imports of Capernaum" on the Sea of Galilee.
Vectigalia were introduced into Gaul by the Romans, and remained after the invasion by the Franks, under the name of tonlieux and coutumes. They were usually levied by the owners of seigniories.|
During the 12th and 13th centuries, when the towns succeeded in asserting their independence, they at the same time obtained the recognition of their right to establish local taxation, and to have control of it. The royal power, however, gradually asserted itself, and it became the rule that permission to levy local taxes should be obtained from the king. From the 14th century onwards, there are numerous charters granting (octroyer) to French towns the right to tax themselves. The taxes did not remain strictly municipal, for an ordinance of Cardinal Mazarin (in 1647) ordered the proceeds of the octroi to be paid into the public treasury, and at other times the government claimed a certain percentage of the product, but this practice was finally abandoned in 1852.