Why Are the Wealthy Leaving France? The Impact of Taxation

The exodus of wealthy taxpayers is a recurring topic in French public debate. But what do the numbers really show? A study by the Economic Analysis Council (CAE) provides empirical data: taxation does have an impact on emigration, but it remains limited. Beyond the high-profile cases of emigration, it is primarily tax optimization that drives wealth management decisions.
 

Real but Marginal Outflows
The notion that tax increases cause a tax drain is persistent. However, data analyzed by the CAE (authors: Laurent Bach, Antoine Bozio, Nicolas Grimprel, Arthur Guillouzouic, Camille Landais, and Clément Malgouyres) reveal a much more moderate reality.
In 2013, the elimination of the flat-rate withholding tax (PFL) on capital income resulted in an increase in net outflows among the top 1% of affected taxpayers, rising from 0.04 to 0.09 percentage points. Conversely, the elimination of the wealth tax (ISF) in 2017 and the introduction of the single flat-rate levy (PFU) in 2018 reduced these outflows by 0.01 to 0.07 percentage points.
 

These variations, while real, remain modest in absolute terms. They affect fewer than 350 tax households per year, out of a total of approximately 385,000 in the top 1 percent. This figure puts the notion of a mass exodus into perspective.
 

The Fallout from Tax Optimization
While the number of departures is limited, their impact on companies is far from negligible. When a major shareholder leaves the country, the company may experience an average decline of 15% in revenue, 30.6% in payroll, and 24.3% in value added. These shocks are, however, partially offset by reallocations: corporate takeovers, labor market adjustments, and new investors.
 

At the macroeconomic level, the net effect remains small. The CAE estimates that a 4 billion euro increase in taxes on the top 1% of capital income would result in a reduction of only 0.05% in national value added.
 

The real issue lies elsewhere: in intensive capital flight. In other words, in the way wealthy households adapt their behavior without leaving the country. Tax optimization, savings arbitrage, sophisticated wealth management strategies… These adjustments have a far greater impact than the departures themselves.
The debate over tax exile must not, therefore, obscure this reality: it is not so much the taxpayers who are leaving as the revenue that is evaporating into the intricacies of tax engineering.
 

Source: Focus, Economic Analysis Council, 2025