Completing the declaration and signing/corrections

When you have completed all the main sections you move to Stage 4, which recaps everything declared, for checking.

Your declaration will also recap all the tax at source levies that were made in 2025, so you can check these and modify the amounts if, in rare cases, you consider them to be incorrect. It will also indicate instalments levied on property or self-employment income, for example, but these cannot be modified.

You must supply your bank details (these may already be inserted if you have done so before). So, have a bank RIB to hand for details such as your IBAN code. The recap page will also display an estimate of your tax and social charges liability. 

When you are satisfied that the forms are complete and correct, click to sign the entire declaration. You will receive confirmation of the transmission of your declaration on screen and by email. This page (Section 5) thanks you for your declaration and notes whether an email confirmation has been sent.

Saving a screenshot of the confirmation can be useful since instances have been reported where the declaration has not been received by the tax authorities and no email sent. Press the ‘Print Screen’ button on your keyboard and paste the image into a Word document or other software such as Microsoft Paint.

This screen should also state that a receipt (accusé de réception) is available in your online space. It will remind you of your final deadline for declarations and the possibility of making changes up to that date. It will also inform you when you can expect to find your avis d’impôt in your personal space (probably in July).

Section 5 will also notify you of your new rate for prélèvement à la source based on the declaration you have just made, and details of what monthly instalments, if relevant, you can expect to pay moving forward. It will also invite you to modify your PAS instalments, if any, if you believe this is necessary bearing in mind the incomes you are receiving in 2026.

Those with simple tax situations can also click to generate an Avis de situation déclarative à l’impôt sur le revenu (ASDIR). This is a provisional income tax statement that can be used for some formalities.

It does not apply to those with declarations deemed to be complex and potentially in need of checking, likely to include ones where tax treaty rules and tax credits for foreign incomes are involved abroad.

Your online account retains copies of declarations, statements, and payments. After validation, you can make corrections until the closing date for declarations. The tax office will only pay attention to the final version.

If, after receiving your avis in summer, you notice an error, you may, usually between August and December, correct your online declaration by clicking Corriger ma déclaration in your personal space. A new avis should be issued a few weeks later.

Mention expresse

The online declaration in recent years has had a section towards the end of Stage 3 called Informations, which is labelled for a ‘mention expresse.’ This traditionally refers to telling the tax office of instances where you are unsure whether you have declared, or omitted, a form of income correctly and wish to flag it up to avoid any penalties later if a mistake is found. The tax office will look at the issue you have raised and provide a reply.

You may now also essentially use it online for anything you want to draw attention to. 

Another way to draw attention to a point is to use the private messaging service in your online account.

You may also use this service to send supporting documents, such as a copy of an S1 to show that you are not a burden on the French social security system and are therefore eligible to pay reduced social charges.

Rescrit

If you have a technical question about tax, you can now request a rescrit ruling via your personal space under Autres services. This used only to be possible by letter. If you lodge such a request prior to your declaration deadline, and are later found to need to make a rectification, related to the issue you asked about, you will not be charged lateness penalties.