This year’s  deadline for the  “paper”  version of your tax return is May 26, 2021 (midnight).

From 22nd May, taxpayers can declare their income on www.impots.gouv.fr, in which case  you will receive additional time to do so, according to your place of residence. Online declarations are expected to become obligatory in 2019, unless it is a first declaration. (Or unless you don’t have a computer!)

May 26th at midnight for the departments numbered 1-19
June 1st  at midnight for the departments numbered 20 to 54
June 8th  at midnight for the departments numbered 50 to 976.

Deadlines for taxpayers residing abroad as above.

A very general look at your income tax obligations in France

The French tax year extends from 1st January to 31st December.
It is up to you to complete your own tax return (la déclaration des impots) and hand it in for the deadline, usually on or around 31st May. Failure to meet the deadline could mean a fine of up to 10% of your unpaid tax bill, and the French tax officials are not known for their charitable acts!

To ensure it is received, hand it in yourself at your tax office or send by recorded delivery.
You may opt to pay in three equal instalments (tier provisionnel) or 10 monthly instalments (mensualisation) by direct debit.

Tax residents should simply visit their local tax office (Hotel des Impôts) to arrange this, whereas non-residents with tax obligations in France should contact the Centre des Impôts des Non-résidents, TSA 10010 – 10 rue du Centre – 93465 Noisy le Grand Cedex. Telephone: 0033 (0)1 57 33 83 00 – E-mail: nonresidents@dgi.finances.gouv.fr

Once you have made your first submission by collecting and returning your tax form to your local tax office, you will be ‘in the system’, and pre-completed forms (déclarations préremplies) should be sent to your home automatically, with the previous year’s details already filled in.

It is worth taking advice from a tax professional, particularly if you have ‘world wide wealth’ to be sure of taking full advantage of the Income Tax Treaty (agreement between countries regarding taxation) where applicable, and that you are not missing out on any tax concessions (relating to childcare, school-age children, purchase of a ‘green’ car, mortgage interest on a principal residence………