The ferme générale (French pronunciation: [fɛʁm ʒeneʁal], "general farm") was, in ancien régime France, essentially an outsourced customs, excise and indirect tax operation. It collected duties on behalf of the King (plus hefty bonus fees for themselves), under renewable six-year contracts. The major tax collectors in that unfair, and therefore highly unpopular, tax farming system were known as the fermiers généraux, which would be tax farmers-general in English.
In the 17th and 18th centuries the fermiers généraux became immensely rich and figure prominently in the history of cultural patronage, as supporters of French music, major collectors of paintings and sculpture, patrons of the marchands-merciers and consumers of the luxury arts in the vanguard of Parisian fashions. In his 1833 novel Ferragus, writer Honoré de Balzac attributes the sad air that hangs about the Île Saint-Louis in central Paris to the many houses there owned by fermiers généraux. Their sons or grandsons purchased patents of nobility and their daughters often married into the aristocracy. Especially members of impoverished aristocratic families were eager to marry daughters of the fermiers généraux in order to restore the wealth they had prior to their ruin. This was called in popular French redorer son blason (literally "to re-gild one's coat of arms").
Before the French Revolution in 1789, the public revenue was based largely on the following taxes:
The Ferme générale developed at a time when the monarchy suffered from chronic financial difficulties. The Affermage (leasing, outsourcing) of the collection of the traite (customs duties and taxes) had the advantage of guaranteeing the Treasury foreseeable and regular receipts, while reducing the perception of its role in tax-collection. The rights were initially contracted separately to various tax farmers, who were named traitants (who had the right to collect the traite) or partisans (who had a share (partie) in the collection of the traite). They were obliged to pay to the Royal Treasury the sum stipulated in their lease, and they received a share of the income and a share of any "unexpected" surplus. Each right was leased separately, which caused great administrative complexity: the taking of goods out of bond could involve several tax farms. Prior to 1598, this system had developed so that the tax farms were allocated among five pays (parts of France).