ANYONE KNOW HOW MUCH INCOME YOU CAN HAVE AND STILL GET TOTALLY FREE HEALTH COVER TRIED SEARCHING THE NET BUT CANT FIND OUT.
You do not describe your situation eg working retired S1 etc
I assume you have a Carte Vitale and are legally resident in France All the info about CSS is on the AMeli website
Completely free a couple will need an income of less than €13547 per annum and reduced payments an income of less than 18289 € You will need to prove these amounts by producing the certificate of RFR that you will have got when you did your French tax return All info including a calculator is here
I am glad that the OP has found this useful