In a word, these experts conclude that the existing tax structure in France is seriously unjust because it is anti-progressive at the very high end of the income distribution -- the top 1 percent decline steeply in the percentage of their income that is collected in the form of the several tax vehicles. Only 20% of the state' revenues derive from taxes that are truly progressive (Nouvel Obs, 2411, p. 18).
As we can see from the graph, the total tax burden of the top 1 percent of income earners declines sharply from 48% to about 32%. And the reason for this is the portion of the French tax system devoted to funding social services (Cotisations sociales et taxes sur les salaires). This assessment is roughly flat from the 30th percentile to the 99th percentile, and then it declines rapidly. (The other components of taxes represented here include the income tax, a tax on returns on capital, and taxes on consumption including the TVA.)
Here is what the distribution of tax burdens would look like on the basis of their proposals:
So what is their proposal? It is to significantly revamp the income tax and the cotisation. The cotisation needs to be progressive rather than regressive; and the income tax needs to be higher. Their proposal is revenue-neutral in this particular sense: the median tax payer today bears a 47% tax burden, and this remains the same under the reform.
Ce livre plaide pour une revolution fiscale précise et opérationnelle, dont tous les détails sont chiffrés au grand jour. Nous proposons en particulier la création d'un nouvel impôt sur le revenue, remplaçant un grand nombre de taxes existantes, notamment la contribution social généralisée (CSG), l'actuel impôt sur le revenu (qui, sou sa forme actuelle, serait purement et simplement supprimé), le prélèvement libératoire, la prime pour l'emploi et le bouclier fiscal. Ce nouvel impôt sur le revenu, payé par tous les Français et socialement adapté a la France du XXIe siecle, sera entièrement individualisé, prélevé directement a la source sur les revenus du travail et du capital. (18)Also of interest are the summary graphs that the authors provide of the distribution of income and wealth in France:
Two things are particularly striking in this discussion. One is how significantly different the French fiscal system is from the U.S. system. Income tax is less than 10% of income for all income levels. And the cotisation is a substantially larger share of total taxes than the Social Security tax in the U.S.
But the other striking thing is the significantly different perspective that these authors take on taxes, compared to almost all discussions of taxes in the U.S. They are fundamentally concerned about the fairness of the tax burden; they care about progressivity; and they are concerned to prevent the ability of "les tres aisées" to exercise political influence in order to reduce their share. "Fiscal rigor" doesn't mean severe budget reductions and elimination of the social security net for French citizens; it means creating a tax system that is adequate to the spending commitments of the French state, and that is fair in its distribution of tax obligations across the whole of society.
I think most observers of French politics doubt that this kind of progressive and sweeping fiscal reform is in the cards in the coming decade. But it is at least encouraging that the issues are being raised.