"(The fiscal administration) will be able to see that if you have numerous pictures of yourself with a luxury car while you don't have the means to own one, then maybe your cousin or your girlfriend has lent it to you… or maybe not," French Budget Minister Gerald Darmanin said.
The idea is to discover potential fraud by examining the data available to the public on individuals' social media accounts, according to Darmanin.
In 2019, France will face a 2.8-percent budget deficit due to changes in its taxation system. The country will lower the tax burden on households and companies by some 25 billion euros.
Under the EU Stability and Growth Pact, the member states should keep their budget deficit below 3 percent of GDP to maintain the stability of the EU's economic and monetary union.