France · correction
Correct a French return or dispute an assessment
Choose the route according to whether the error is in the return or in the assessed treatment.
Direct answer
France provides online correction for eligible returns during the published window and a secure-message claim route for other errors. Correcting your own input and disputing the administration’s legal treatment are not the same action.
Working route
Identify the source of the error
Compare the filed return, receipt and assessment notice line by line before choosing a procedure.
Use the live correction route
If the service and year are eligible, amend the return through the official correction service and retain the new acknowledgement.
Frame a claim when needed
For an assessed position or a closed correction window, use the documented claim route with facts, amounts and supporting evidence.
Hard stop
Penalties, limitation periods, a disputed residence or a large legal interpretation should be reviewed before a corrective filing is sent.