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French CFE 1447-M — Annual Business Tax Declaration 2026

Guide to France's annual CFE (business property tax) declaration 1447-M, due by the 2nd business day after May 1st to report premises or status changes.

Who must file form 1447-M?

Any business or self-employed individual already liable for CFE who needs to report a change affecting their tax base for the following year. Typical triggers include moving to new premises, an increase or decrease in floor area, a partial start or cessation of activity, or a request for a specific exemption (for example in a zone franche urbaine — a designated enterprise zone). If nothing has changed since your last filing or your initial 1447-C declaration, no annual filing is needed.

Source: impots.gouv.fr — Formulaire 1447-M-SD (déclaration annuelle/modificative CFE-IFER) · updated 2026

About this form

Form 1447-M-SD — known as the déclaration modificative de Cotisation Foncière des Entreprises — is the annual change-notification form for France's local business property tax. The CFE (Cotisation Foncière des Entreprises) is levied on every company or self-employed individual carrying out a non-salaried activity in France as of 1 January each year. You only file the 1447-M when something has changed: new or vacated premises, a shift in floor area, a partial start or cessation of activity, a request for a specific tax exemption, or to declare elements relating to the minimum CFE assessment (éléments d'imposition à la cotisation minimum). If nothing has changed since your last filing, no annual declaration is required. The tax is then assessed by your local business tax office (SIE — Service des Impôts des Entreprises) and a formal tax notice (avis d'imposition) is made available in your professional online account in December.

Worked example

Sophie Martin is a freelance UX designer (auto-entreprise) based in Lyon, with annual turnover of €42,000. In February 2026, she moves from a 20 m² home office to a dedicated 38 m² studio in the 3rd arrondissement. Before the second working day following 1 May 2026, she files form 1447-M online via her espace professionnel, updating the address and the new floor area. Her CFE for 2027 will be recalculated on the higher valeur locative of the larger premises. Without this filing, the Lyon SIE would have continued to assess her on the former address, and a subsequent correction could have carried penalties.

How to fill out the form

  1. Use form 1447-M to notify any change to your CFE assessment base — such as a move, a change in floor area (surface), use of new equipment subject to taxe foncière (property tax), or a partial start or cessation of activity.
  2. Identify the establishment (établissement) concerned and the French commune (local authority) where it is taxed — each commune manages CFE independently, so the filing goes to the SIE responsible for that location.
  3. Complete the sections describing what has changed: immovable property used for the business and its rental value, any qualifying exemption you are claiming, and where applicable, your headcount (effectifs).
  4. Submit the declaration electronically via impots.gouv.fr no later than the second working day (deuxième jour ouvré) following 1 May of the current year to ensure the change is reflected in the following year's assessment.
  5. Keep a copy of the filed declaration: the CFE is subsequently issued as a formal tax notice (avis d'imposition), visible in your espace professionnel on impots.gouv.fr in December — review it against your declaration to catch any discrepancy.

Good to know

  • New to France? Your business is fully exempt from CFE in its first year of activity. File form 1447-C (the initial creation declaration — not 1447-M) before 31 December of the year you start trading to register your establishment with the local tax office.
  • Turnover ≤ €5,000/year? Under article 1647 D CGI (in force since 2023), you benefit from an automatic minimum-CFE relief (dégrèvement automatique). You pay zero minimum CFE — but you must still file 1447-M if any reportable change has occurred during the year.
  • The CFE minimum varies widely by commune and turnover band. If you relocate mid-year, file 1447-M promptly after the move: failure to declare your new address means the tax office will assess you on the old premises, potentially triggering a correction (redressement).

Frequently asked questions

Who must file form 1447-M?

Any business or self-employed individual already liable for CFE who needs to report a change affecting their tax base for the following year. Typical triggers include moving to new premises, an increase or decrease in floor area, a partial start or cessation of activity, or a request for a specific exemption (for example in a zone franche urbaine — a designated enterprise zone). If nothing has changed since your last filing or your initial 1447-C declaration, no annual filing is needed.

What is the filing deadline for the 1447-M?

The 1447-M must be filed no later than the second working day (deuxième jour ouvré) following 1 May of the current year. Changes declared by this date are factored into your CFE assessment for the following calendar year. Filing after the deadline means your change will not be taken into account until the year after, and may expose you to a formal tax correction (redressement) if the undeclared change materially affects your tax base.

What is the difference between form 1447-C and form 1447-M?

The 1447-C is the initial creation declaration, filed by any newly established business before 31 December of its first year of activity — it sets up your CFE profile from scratch. The 1447-M is the modification declaration, filed from the second year onwards only when something changes. Think of the 1447-C as the registration form and the 1447-M as the update form. You never file both in the same year for the same establishment.

How is the CFE calculated?

CFE is based on the rental value (valeur locative) of immovable property used for the business — essentially the estimated annual rent the premises would command on the open market, as determined by the tax administration. When this value is low, or when the business has no real-property base at all (for example, a home-based sole trader), a minimum flat contribution (cotisation minimum) applies. Each commune sets its own minimum rate within statutory bands, with the amount varying according to your annual turnover.

My annual turnover is €5,000 or below — do I still owe the CFE minimum?

Since 2023, businesses whose annual turnover or receipts do not exceed €5,000 benefit from an automatic relief (dégrèvement automatique) on the CFE minimum, under article 1647 D of the Code général des impôts (CGI). In practice you pay no minimum CFE if your business is very small. However, this relief does not remove the obligation to file form 1447-M if a reportable change has occurred. Confirm your eligibility with your local SIE (Service des Impôts des Entreprises).

Where and how do I file the 1447-M?

The 1447-M must be filed electronically via your professional tax account (espace professionnel) on impots.gouv.fr. Businesses below the EDI (Electronic Data Interchange) filing threshold can complete the form directly online. Paper filing remains available for certain very small businesses not yet set up for electronic submission, but digital filing is strongly encouraged by the tax administration. The competent tax office is the SIE of the commune where your establishment is physically located.

Updated on 2026-06-27

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