The Council ruled that the planned 75 percent tax on annual income above 1 million euros ($1.32 million) - a flagship measure of Hollande's election campaign - was unfair in the way it would be applied to different households. 

Prime Minister Jean-Marc Ayrault said the government would redraft the upper tax rate proposal to answer the Council's concerns and resubmit it in a new budget law, meaning Saturday's decision could only amount to a temporary political blow.

 

While the tax plan was largely symbolic and would only have affected a few thousand people, it has infuriated high earners in France, prompting some such as actor Gerard Depardieu to flee abroad. The message it sent also shocked entrepreneurs and foreign investors, who accuse Hollande of being anti-business.