NON-FRENCH RESIDENTS EVERYTHING YOU NEED TO KNOW ABOUT ELECTRONIC TAX RETURNS It is now compulsory to declare your French-source income online. The deadline for your declaration is May 21, 2019. If you receive income from a French source that is taxable in France under an international tax treaty. You must declare them by May 21 at the latest. In 2019, as you also know. Online declarations have become compulsory for all users whose main home is first equipped with internet access. Only users without such access are...