French Tax Assessment Notice: Understanding the First Page
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"Understanding French tax documents is essential to correctly interpret your personal tax situation and anticipate your tax obligations." — LC Finance
This Week’s Strategic Focus French tax assessment notice
How to identify your tax reference numbers
How to understand your tax household information
How French tax collection and withholding works
How to interpret your remaining tax balance or refund
How to keep your tax information up to date
1 – Tax Identification Number (Declarant Number)
The personal tax identification number is a number used to identify you with the tax office for individuals in order to declare your personal income every year.
WARNING: if you have created a company in France, you will also have, in addition to your personal tax number, a professional tax number. In this case, you will pay two different taxes: corporate tax and personal income tax.
If you are married, you and your spouse each have a personal tax identification number. On the tax return form, you can see a declarant 1 and a declarant 2.
If you are married and have chosen to file a joint tax return, both tax numbers will appear on your tax assessment notice.
2 – Address
This is the address where you were registered with the tax authorities during the tax year.
If you moved during the year and the address held by the tax administration is incorrect, you must declare your change of address as soon as possible, as well as the date of your move.
You can do it here: Change your address
3 – SIP (Individual Tax Office)
SIP stands for “Service des impôts des particuliers” (Individual Tax Office).
As an individual taxpayer, you must pay your income tax to the SIP indicated on your tax assessment notice.
Always send your payment to the tax office specified on your official tax document.
4 – Name and Address
This section simply shows your name and address as known by the tax authorities.
If this information is no longer correct, you should update it using the official French tax service.
You can do it here: Update your address
5 – FIP Number
The FIP number is an internal reference used by the French tax administration to identify your tax file.
It is different from your personal tax identification number mentioned in section 1.
6 – Tax Roll
A tax roll is an official list of taxpayers established by the French tax administration (DGFiP).
This list includes all individuals and companies required to pay a specific tax for a given year.
The roll number is the reference number of your file within this list.
Historically, tax rolls were handwritten lists of taxpayers and amounts due.
Under the Ancien Régime, taxation in France was already organised through these nominative “rolls”.
• Tax collectors created handwritten tax rolls
• Each village had its own list of taxpayers and amounts due
7 – Service Identifier
This identifier is used by the French tax administration (DGFiP) to:
• identify the local tax office that issued your tax notice
• route correspondence automatically
• organise tax files by geographical area
Example: “86002”
• 86 → Department number (Vienne)
• 002 → Internal tax office identifier
8 – Monthly Withholding Tax
In France, income tax is generally collected through monthly withholding at source.
The dates and amounts shown indicate when and how much will be debited from your bank account.
These amounts are calculated based on your previous year’s declared income.
However, your financial situation may have changed since then, meaning the withholding may no longer reflect your current income.
Each year, your tax situation is updated based on your actual income, which may result in either a refund or an additional payment.
This system allows taxpayers to spread their tax payments over time instead of paying a large lump sum at the end of the year.
9 – Remaining Tax to Pay
This is not your total tax, but the remaining amount still due.
If you have already paid advance instalments, your total tax is the sum of those payments plus the remaining balance.
In some cases, you may instead be entitled to a refund.
This happens when your advance payments exceed your actual tax liability.
It is important to regularly update your tax rate on your impots.gouv account to ensure accurate withholding:
10 – Bank Details
This section shows the bank account registered with the French tax administration.
Make sure your IBAN is up to date to avoid failed payments or bank fees.
You can update your banking details directly in your personal impots.gouv account.
11 – Tax Household Income
This is the total income of your tax household, which is used to calculate income tax in France.
Taxation is based on the household rather than individuals.
For example, a married couple with children will generally be taxed jointly.
All incomes are combined to form the “taxable reference income”, which is used to calculate tax brackets ranging from 0% to 45%.
12 – Number of Tax Shares
The number of tax shares is a system used to adjust the amount of tax due.
The more shares you have, the lower your tax liability may be.
This depends on your family situation: marital status, number of children, and dependents.
However, there is a limit: beyond a certain point, increasing the number of shares no longer reduces tax.
This limitation is known as the “tax benefit cap”.
Strategic Summary — If You Only Read This Section
- A French tax assessment notice contains several key identifiers that help the tax administration manage your tax file (tax number, FIP number, service identifier).
- The “declarant number” identifies each taxpayer within a household and can exist in duplicate for married couples.
- Your tax is always linked to a tax household, not just an individual, which impacts how income is calculated and taxed.
- The SIP (individual tax office) is the authority responsible for collecting your income tax payments.
- Some information on your tax notice is administrative (address, bank details, identifiers), while other parts directly affect your tax calculation (income, shares, withholding).
- Monthly withholding "prélvement à la source" means your tax is usually paid in advance based on past income, then adjusted later based on your actual yearly income.
- The number of tax shares helps reduce your tax burden, but only up to a legal limit (tax cap).
