Income tax - How do I correct your return?
Verified 10 April 2025 - Directorate for Legal and Administrative Information (Prime Minister)
If you make a mistake or forget, you can correct your tax return. The terms and conditions vary depending on whether you are reporting online or on a paper form.
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You've reported your income online
The correction depends on the declaration concerned.
This is the 2025 income tax return for 2024
The process depends on the date of correction.
Before the deadline for filing your return
From the opening of the online declaration (April 10, 2025) until the deadline for submission from your return, you can make an amending return from your particular space on the tax website.
You can do it as many times as you need.
Taxes: access your Special Space
You can correct the amounts entered in the boxes, check or uncheck the wrong boxes.
A confirmation email will be sent to you at the end of the procedure.
After the reporting deadline
The online reporting service will be open.
You can correct your statement.
Taxes: access your Special Space
Warning
If you file your return, and not just a correction, after the online filing deadline, you risk a penalty for late declaration.
If an error is found after receiving your tax noticeHowever, it will be possible to correct your return online, in your particular space on the tax website.
Taxes: access your Special Space
You can also use this service if you have received a automatic declaration.
Please note
If you have declared your income online on the mobile application "taxes.gouv", you can correct your declaration on smartphone or tablet.
You will be able to correct the amounts entered in the boxes, check or uncheck the incorrect boxes.
A confirmation email will be sent to you at the end of the procedure.
Warning
In certain situations, such as when these adjustments lead to a reduction in tax or the creation or increase of a tax credit, the administration may ask you for clarification and may refuse the requested correction.
After the end of the correction period for the online return, you will need to to lodge a complaint.
You will not be able to correct some errors through the Online Correction Service.
This is particularly the case for the following:
- Change of family situation (marriage, Civil partnerships, divorce, death, etc.)
- Updating of civil status
- Change of address.
You will need to request these changes using your secure email from your Private Space.
It's another tax return
If you did not make the correction on time, you can to lodge a complaint.
You can do it until december 31, 2025 for the 2023 tax return.
You can file your complaint online from your particular space.
You reported your income on paper
This is the 2025 income tax return for 2024
Before the deadline for lodging the declaration
You can not use the online remediation service.
You must file a new paper tax return to your personal income tax department.
You will need to specify the following:
- Specify "DECLARATION OF AMENDMENT, REVOCATION AND REPLACEMENT" on the first page
- Re-register all items you need to declare, including the correct items in 1re declaration.
Who shall I contact
After the deadline for lodging the declaration
After receiving your tax notice, you can to lodge a complaint.
You can make your claim by one of the following means:
- Online from your private space
- By mail to your public finance center.
Taxes: access your Special Space
By mail, you will need to specify the following:
- Last name, first name, address
- Tax Number
- Handwritten signature
- Tax concerned
- Reason for the claim together with your supporting documents.
Please note
You can also contact your tax office by phone or visit the office.
Who shall I contact
It's another tax return
If you did not make the correction on time, you can to lodge a complaint.
You can do it until december 31, 2025 for the 2023 tax return.
You can make your claim by one of the following means:
- Online from your Private Space
- By mail to your public finance center
Taxes: access your Special Space
By mail, you must specify the following:
- Last name, first name, address
- Tax Number
- Handwritten signature
- Tax concerned
- Reason for the claim together with your supporting documents.
Please note
You can also contact your tax center by phone or go to the counter.
Who shall I contact
Who can help me?
Find who can answer your questions in your region
For general information
Tax Information Service
By telephone:
0809 401 401
Monday to Friday from 8:30 am to 7 pm, excluding public holidays.
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To contact the local service managing your folder
Department in charge of taxes (treasury, tax department...)
Online service
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Ministry of Finance