[jchampem]

This seems to be accurately calculating the income taxes, but that's not taking into account the corporate taxes.

If a French employer tells you they'll pay you 100k€ annually (just for the sake of the example), you can expect to receive 75k€. (25%, mostly for your retirement plan, social security and unemployment insurance. Mandatory)

Then, if you input those 75k in this tool, it will tell you what you can expect to pay as income taxes. In the case of 75k, 17 218€.

[Chris2048]

42% tax then? Better rate than I get :-/

[user5994461]

There is another 25% rate that is paid directly by the company to the state.