Business Sale: Procedure and Legal Validity of Electronic Signature
Electronic signature is an essential tool for modernising the sale of a business. Discover the steps to follow, the legal framework and the benefits.
Writer — Certyneo · About Certyneo

The sale of a business is a complex process that requires careful management of documents. With the advent of electronic signature, this procedure can be simplified whilst maintaining its legal validity.
Applicable Legal Framework
eIDAS Regulation and GDPR
The European eIDAS regulation (Regulation 910/2014) sets out the criteria for the recognition of electronic signatures. Article 25 specifies that an electronic signature is valid if it meets the conditions of authentication, preservation and non-repudiation. GDPR (Regulation 2016/679) applies to the processing of personal data linked to this transaction.
Document Retention Periods
Under the Commercial Code L123-22, books and registers must be kept for ten years. Tax-related supporting documents are retained for six years under the General Tax Code L102B. For social contributions, the retention period is three years in accordance with the Social Security Code L243-16. Finally, for payslips, the retention period is five years under the Labour Code L3243-4.
Business Sale Procedure
Preliminary Steps
Before any electronic signature, it is recommended to verify the validity of documents and the identity of the contracting parties. This step helps to avoid any potential disputes.
Electronic Signature of the Contract
The electronic signature of the business sale agreement must comply with eIDAS standards. It can be carried out using an electronic certificate, a simple signature or a qualified signature.
Validation and Archiving of Documents
Documents signed electronically must be archived in a secure format to guarantee their long-term preservation. Certyneo offers electronic archiving solutions that comply with legal standards.
Benefits of Electronic Signature in Business Sales
Simplification of the Process
Electronic signature allows for rapid and secure transmission of documents, reducing negotiation time. It also avoids costs associated with printing and transporting documents.
Legal Compliance
Unlike handwritten signatures, electronic signature is recognised by eIDAS law and respects document retention periods. It thus guarantees long-term legal compliance.
Case Study: a Law Firm with 12 Employees
A law firm with 12 employees decided to sell its business. After verifying the validity of documents and the identity of the parties, they used Certyneo to electronically sign the sale agreement. The process took just a few minutes, enabling a 70% reduction in the time required for handwritten signature.
Frequently Asked Questions
How long is an electronic signature valid for?
An electronic signature remains valid as long as the conditions of authentication and preservation are met. According to eIDAS, it must be retained for the legal duration of the associated documents.
Does a contract signed electronically have the same value?
Yes, a contract signed electronically has exactly the same legal value as a contract signed by hand. It is recognised by eIDAS law and GDPR.
Conclusion
Electronic signature offers an effective solution for modernising business sales whilst guaranteeing their legal validity. Certyneo offers solutions tailored to the specific needs of businesses, thereby simplifying procedures and reducing costs.
Complete Guide to Electronic Signature Certyneo Pricing
Usage Scenarios
A Law Firm with 12 Employees
A law firm with 12 employees decided to sell its business. After verifying the validity of documents and the identity of the parties, they used Certyneo to electronically sign the sale agreement. The process took just a few minutes, enabling a 70% reduction in the time required for handwritten signature.
An Industrial SME Managing 200 Supplier Contracts per Year
An industrial SME managing 200 supplier contracts per year chose to use Certyneo. By automating electronic signatures, it was able to reduce negotiation time and the costs associated with document management.
A Hospital Group with Approximately 800 Beds
A hospital group with approximately 800 beds used Certyneo to modernise its business sale processes. By using electronic signature, they reduced negotiation time and ensured long-term legal compliance.
Frequently Asked Questions
How long is an electronic signature valid for?
An electronic signature remains valid as long as the conditions of authentication and preservation are met. According to eIDAS, it must be retained for the legal duration of the associated documents.
Does a contract signed electronically have the same value?
Yes, a contract signed electronically has exactly the same legal value as a contract signed by hand. It is recognised by eIDAS law and GDPR.
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