The solidarity tax on wealth (French: Impôt de solidarité sur la fortune, ISF) was an annual direct wealth tax on those in France having assets in excess of €1,300,000 (since 2011).[1] It was one of the Socialist Party's 1981 electoral platform's measures, 110 Propositions for France. First named IGF (Impôt sur les Grandes Fortunes), it was abolished in 1986 by Jacques Chirac's right-wing government, but reestablished in 1988 as ISF in slightly different terms after François Mitterrand's reelection.
In September 2017, the French Government abolished ISF and replaced it with the wealth tax on real estate (IFI), from 2018.