Transformation Commission: when is it required?

Updated March 2026 - The transformation commissioner is a control procedure imposed by the Commercial Code in certain cases of change in the legal form of a company. Its objective: to guarantee that partners have reliable and independent information before voting on the transformation.

The transformation commissioner designates the mission entrusted to an independent professional (auditor or ad hoc auditor) responsible for verifying the assets and financial situation of a company when it changes legal form. Its report enlightens the partners on the value of the property, the net assets and the commitments of the company, so that the vote at the general meeting is based on certified data. This mission is provided for in articles L224-3 and L223-43 of the Commercial Code.

The intervention of the Transformation Commissioner meets three main objectives:

• Enlighten the partners: the report provides a certified snapshot of the financial and asset situation of the company on the day of the transformation. The partners can thus vote with full knowledge of the facts, without depending solely on the figures communicated by the managers.

• Legally secure the operation: a transformation carried out without a report from the commissioner, although it was obligatory, can be canceled or give rise to civil liability of the directors. The report constitutes proof of diligence.

• Guarantee the sincerity of the evaluations: the auditor verifies that contributions in kind, reserves and equity are correctly evaluated. This prevents the new social form from being based on insufficiently justified or overvalued values.

Hayot Expertise Advice: the common mistake is to discover this need too late, when the statuses or the transformation schedule are already advanced. This must be checked upstream, from the first reflections on the project.

The answer depends on the legal form of departure and the form of arrival. The Commercial Code distinguishes between several situations.

Transformation of a SAS

Article L224-3 of the Commercial Code provides that when a simplified joint stock company is transformed into another form, a transformation auditor must be appointed, unless the company already has an auditor in office. In the latter case, the CAC can establish the transformation report, which simplifies the procedure and reduces costs.

Transformation of an SARL

Article L223-43 of the Commercial Code provides a similar mechanism for limited liability companies. If the SARL does not have an auditor, an ad hoc transformation auditor must be appointed by order of the president of the commercial court. This professional will verify the situation of the company and submit a report to the partners before the general meeting ruling on the transformation.

Case where the police station is not required

Certain transformations do not require a commissioner. This is particularly the case when an auditor is already in place and the law explicitly authorizes him to fulfill this mission. Furthermore, certain transformations between similar forms can benefit from relaxed regimes. This should be checked on a case by case basis.

The mission follows a precise timetable that leaders must anticipate.

1. Appointment of the commissioner

If the company does not have an auditor, the manager must contact the president of the commercial court to obtain the appointment of an ad hoc auditor. This process can take several weeks. It is therefore crucial to initiate it as soon as the transformation project is launched.

2. Investigation and verification

The auditor examines the annual accounts, the assets situation, off-balance sheet commitments and any contributions in kind. He may request any additional document he deems useful. Its mission is independent: it does not take sides on the advisability of the transformation, but certifies the reliability of the information presented to the partners.

3. Writing the report

The report of the transformation commissioner is made available to the partners under the conditions provided for by law (generally fifteen days before the general meeting). It contains an analysis of the financial situation, the value of assets and liabilities, and any observations deemed relevant.

4. General meeting of transformation

The partners vote on the transformation on the basis of the commissioner's report. The minutes of the meeting must mention the presence of the report and the resolutions voted on. The transformation takes effect after completion of the legal advertising formalities.

A transformation operation can mobilize several types of commissioners, and it is essential not to confuse them.

• Transformation Commissioner: verifies the overall situation of the company at the time of the change of legal form.
• Contribution Commissioner: intervenes when there are contributions in kind during a capital increase concomitant with the transformation. It specifically evaluates the goods contributed.
• Special Benefits Commissioner: controls the benefits granted to certain partners or managers as part of the operation (grant of free shares, subscription warrants, etc.).

These missions can be cumulative. A transformation of SARL into SAS with capital increase in cash and in kind, accompanied by the allocation of subscription warrants to the manager, could thus require the intervention of three separate commissioners. Coordination between these missions is a key element of the success of the project.

To delve deeper into these distinctions, consult our articles on the transformation commissioner, the transformation of an SARL into an SAS: steps, costs, taxation and the special advantages commissioner.

Omitting to appoint a transformation commissioner when the law so requires exposes the company and its managers to several risks:

• Invalidity of the transformation: a partner can bring an action for nullity before the court if the report has not been established. Nullity entails the reconstitution of the old legal form, with all the complications that this implies.

• Civil liability of managers: managers can be held personally responsible for losses suffered by partners or third parties due to the absence of independent control.

• Tax adjustment: the tax administration can challenge assessments carried out without a report from the commissioner, in particular on contributions in kind and unrealized capital gains.

• Banking difficulties: financial institutions often require proof of the regularity of the transformation before agreeing to modify signatures and guarantees.

The auditor (CAC) is a permanent body for controlling the annual accounts, appointed for a renewable year. The transformation commissioner, on the other hand, intervenes within the framework of a one-off mission linked to a specific event: the change of legal form.

When a CAC is already in office, the law often allows him to also fulfill the mission of transformation commissioner. This avoids appointing an additional participant and reduces fees. However, if no CAC is in place, an ad hoc appointment must be made to the court.