As an illustration, households’ net worth in France is five times higher than GDP and it has grown over 7% on average per year and in real terms between 1997 and 2007, compared with a 1.7% average annual increase for GDP (Conseil des Prelevements Obligatoires, 2011). Taxing wealth at a rather low rate should thus generate large and rising tax revenues. Second, real estate accounts for a large share of household net worth (Fredriksen, 2011) and the tax can thus hardly be avoided.