Accounting Records and Electronic Signature: The 2026 Compliance Guide

The digital transformation of French companies now touches the very heart of their administrative organisation: accounting records. Long considered exclusively paper documents, the general ledger, journal and inventory can today be kept and signed electronically — provided you comply with precise legal requirements. In France, the compliance of electronically signed accounting records rests on an articulation between the Commercial Code, the General Tax Code and the European eIDAS regulation. This article details the applicable requirements, the required signature levels, the risks of non-compliance and the best practices to adopt in 2026.

Why is electronic signature of accounting records essential?

Mandatory accounting records under French law

Article L. 123-12 of the Commercial Code requires any individual or legal entity with the status of a merchant to maintain regular accounts. This obligation covers at minimum:

• The journal: chronological recording of all transactions affecting the company's assets.
• The general ledger: breakdown of entries by accounts, in accordance with the General Accounting Plan (PCG).
• The inventory record: annual inventory of assets and liabilities with their values.

Since Ordinance No. 2004-1382 of 20 December 2004, these records can be maintained in electronic form. However, simple digitisation is not enough: the integrity, attributability and readability of data over time must be guaranteed, which directly relates to the requirements of electronic signature in business.

The accounting and tax stakes of dematerialisation

The French tax authority has clarified in instruction BOI-CF-IOR-60-40 the conditions for accepting electronic accounting documents during a tax audit. Three criteria are decisive:

1. Authenticity of origin: the identity of the signatory must be verifiable.
2. Content integrity: the document must not have been modified after signature.
3. Readability: the document must remain readable throughout the entire minimum storage period (10 years minimum under Article L. 123-22 of the Commercial Code).

These three criteria correspond precisely to the properties offered by the qualified electronic signature defined by the eIDAS regulation. The use of a simple or advanced signature can expose the company to tax adjustments if the administration contests the integrity of the records presented.

What levels of electronic signature for accounting records?

The three eIDAS levels and their accounting applicability

Regulation eIDAS No. 910/2014 distinguishes three levels of electronic signature, whose legal value increases with the level of technical requirement:

• Simple electronic signature (SES): basic identification, limited evidentiary value. Insufficient for accounting records subject to tax audit.
• Advanced electronic signature (AES): linked unequivocally to the signatory, created from data under their exclusive control, capable of detecting any subsequent modification. Acceptable for many internal accounting documents, provided the solution used complies with ETSI EN 319 132 standards.
• Qualified electronic signature (QES): the highest level, equivalent in law to a handwritten signature under Article 25 of eIDAS. Recommended for accounting records with high tax stakes or for listed companies.

For SMEs, advanced signature based on a qualified certificate often represents the right balance between legal certainty and operational practicality. The legal value of electronic signature varies according to the level used and the type of document concerned.

Electronic time-stamping: an essential complement

Signature alone is not sufficient to establish the chronology of accounting entries. Qualified electronic time-stamping — defined in Article 3(33) of eIDAS and provided by a qualified trust service provider (QTSP) — provides proof that the document existed in this form on a specific date and time, beyond dispute.

In practice, each journal entry signed and time-stamped constitutes robust evidence in the event of dispute or DGFIP audit. This requirement is all the more critical since the tax statute of limitations can reach 6 years in case of suspected fraud (Article L. 169 of the Tax Procedures Book).

Technical formats and long-term archiving

The European Commission has validated the PAdES (PDF Advanced Electronic Signatures), XAdES and CAdES signature formats as eIDAS-compliant formats, according to ETSI EN 319 132, EN 319 141 and EN 319 122 standards respectively. For accounting records:

• PAdES is the most commonly used format for summary PDF documents (monthly general ledger, annual inventory).
• XAdES is suitable for XML exports from ERP systems.

Archiving with probative value must comply with standard NF Z 42-013 (electronic archiving) and, for companies subject to sector-specific regulations, the general security framework (RGS) version 2.0. A comparison of electronic signature solutions can help identify service providers offering a complete signature plus archiving chain.

The reform of electronic invoicing and its impact on accounting

A regulatory framework undergoing rapid change

As of 1 September 2026, the obligation to receive electronic invoices applies to all French companies subject to VAT, in accordance with Ordinance No. 2021-1190 and Decree No. 2022-1299. This reform, which is coordinated with the deployment of Partner Dematerialisation Platforms (PDP), profoundly changes the flows of incoming data into accounting systems.

In practice, an electronic invoice in Factur-X or UBL format, received via an approved PDP, automatically feeds the journal without manual re-entry. However, this automation does not exempt the finance director or accountant from the obligation to validate and sign periodic closings. The 2026-2027 electronic invoicing reform requires rethinking signature processes before each accounting closing.

Articulation between e-reporting and signature of records

E-reporting — transmission of transaction data to the tax authority — generates data flows that must be consistent with signed accounting records. Any discrepancy between data transmitted via e-reporting and general ledger entries can trigger a request for justification from DGFIP. The electronic signature of accounting records then serves as proof of integrity that can be opposed to the administration.

Practical implementation: key steps for companies

Prior audit of existing tools

Before deploying an electronic signature solution for accounting records, the company must:

1. Map the documents concerned: exhaustive list of records and financial statements subject to mandatory or recommended signature.
2. Assess the required signature level: depending on the size of the company, its sector (banking, insurance, healthcare) and its specific regulatory obligations.
3. Verify ERP compatibility: SAP, Sage, Cegid and most modern ERPs offer APIs allowing integration of signature modules. The complete guide to electronic signature details the main integration methods.
4. Choose a qualified trust service provider (QTSP) listed on the ANSSI Trust Service List (French TSL, compliant with Article 22 of eIDAS).

Governance and delegation of signature

The signature of accounting records engages the responsibility of the legal representative or designated delegate. A signature policy (Signature Policy within the meaning of ETSI EN 319 172 standard) must be formalised and specify:

• Who can sign each type of record (finance director, statutory auditor, external accountant).
• How frequently records are closed and signed (monthly, quarterly, annually).
• What formats and signature levels are chosen for each document.

This governance protects the company during audits and facilitates the transfer of responsibilities in the event of a management change.

Legal framework applicable to electronically signed accounting records

The compliance of electronically signed accounting records in France rests on an overlap of national and European texts that is essential to master.

Civil Code — Articles 1366 and 1367: Article 1366 establishes the principle of equivalence between electronic writing and paper writing, provided that the person from whom it comes is properly identified and that the document is drawn up and maintained in conditions designed to guarantee its integrity. Article 1367 recognises electronic signature as a method of expressing consent and refers to the conditions set by decree (Decree No. 2017-1416 of 28 September 2017, codified).

eIDAS Regulation No. 910/2014: Directly applicable in all Member States, it defines the three levels of signature (simple, advanced, qualified) and the obligations of qualified trust service providers (QTSP). Article 25 §2 specifies that a qualified signature has a legal effect equivalent to a handwritten signature. Article 3(33) defines qualified electronic time-stamping.

Commercial Code — Articles L. 123-12 to L. 123-24: These articles impose the keeping of regular accounts and clarify the conditions for accepting records kept in electronic form. Article L. 123-22 sets a minimum storage period of 10 years for accounting books and documents, from the close of the financial year to which they relate.

Tax Procedures Book — Article L. 169: Defines the periods for tax authority reassessment, which can reach 6 years in case of fraud, which means maintaining the integrity and readability of electronically signed records throughout this period.

Tax instruction BOI-CF-IOR-60-40: Specifies the procedures for accepting computerised accounts during tax audits. It requires that data be accessible, readable and that their authenticity can be verified.

ETSI Standards: EN 319 132 (PAdES), EN 319 141 (XAdES) and EN 319 122 (CAdES) define the advanced and qualified electronic signature formats recognised throughout the European Union. EN 319 172 governs signature policies.

GDPR No. 2016/679: Accounting records may contain personal data (names of customers, suppliers, employees). Their processing and archiving must comply with the principles of minimisation, limitation of retention and appropriate security. An impact assessment (DPIA) may be required for large-scale signature systems.

NF Z 42-013: AFNOR standard governing electronic archiving systems with probative value, essential to guarantee the admissibility of signed records during an audit or dispute.

Risks in case of non-compliance: An electronic accounting record that does not meet these requirements can be rejected by the tax authority during an audit, resulting in official reconstruction of accounts and penalties reaching 80% of evaded tax (Article 1729 of the CGI) in case of fraudulent schemes.

Usage scenarios: electronic signature of accounting records in practice

Scenario 1 — Industrial SME managing several hundred accounting entries monthly

An industrial SME with approximately 80 employees, subject to a tax audit every four years on average, had until 2024 kept its accounting records in the form of unsigned PDF files, exported from its ERP. During a DGFIP audit, the inspector questioned the integrity of a general ledger presented, arguing the absence of probative electronic signature.

By deploying an advanced signature solution based on a qualified certificate, integrated directly into the ERP via REST API, the SME now produces monthly records in PAdES format, time-stamped by a QTSP referenced with ANSSI. Each monthly closing is signed in less than 2 minutes by the administrative and finance director. The time required to prepare files for tax audits has decreased by approximately 60%, according to the ranges observed in EY reports on accounting digitalisation (2025).

Scenario 2 — Accounting firm managing about fifty client files

An accounting firm with fifteen employees previously had to print, have manually signed and then digitise the annual inventory records of each of its clients before transmission. This process represented on average 3 to 4 hours per file, or approximately 150 to 200 hours annually spent solely on signature management.

The adoption of a SaaS qualified electronic signature platform, with multi-signatory workflows (accountant + legal representative of the client), reduced this period to less than 30 minutes per file, including automatic reminders. The rate of signature within regulatory deadlines (before filing annual accounts) increased from 74% to 98%. Signed records are automatically archived in a digital vault compliant with NF Z 42-013.

Scenario 3 — Multi-entity group subject to consolidation

A group structured around a holding company and four subsidiaries had to consolidate accounting records produced by heterogeneous systems (two different ERPs, one online accounting tool). The absence of a uniform signature policy exposed the group to risks during statutory audits.

By defining a centralised signature policy (ETSI EN 319 172 Signature Policy) and deploying a solution interconnected with each accounting system, the group harmonised signature levels (QES for inventory records, AES for monthly general ledgers). The duration of annual audits by statutory auditors was reduced by approximately 25%, with auditors now having access to authenticated and time-stamped records directly from their secure collaborative workspace.

Frequently asked questions

Does an electronically signed accounting record have the same value as a record signed by hand?

Yes, provided that the signature used is at least advanced level (AES) within the meaning of eIDAS Regulation No. 910/2014, and that the document complies with the conditions of Article 1366 of the Civil Code: reliable identification of the signatory and guarantee of content integrity. A qualified signature (QES) offers complete legal equivalence with a handwritten signature, in accordance with Article 25 §2 of eIDAS.

What is the mandatory storage period for electronic accounting records in France?

Article L. 123-22 of the Commercial Code imposes a minimum storage period of 10 years for accounting books and documents, from the close of the financial year to which they relate. In terms of taxation, the reassessment period can go up to 6 years in case of fraud (Article L. 169 of the Tax Procedures Book). The archiving system must guarantee the readability and integrity of signed documents throughout this entire period, in accordance with standard NF Z 42-013.

What level of electronic signature is recommended for accounting records?

For annual inventory records and documents submitted to the tax authority, qualified electronic signature (QES) is recommended as it offers the highest evidentiary value. For monthly closings of the general ledger and journal, advanced signature based on a qualified certificate (AATL or QTSP referenced with ANSSI) represents an acceptable level offering a good balance between legal certainty and operational practicality.

Can the tax authority refuse electronically signed accounting records during an audit?

Yes, if the technical conditions are not met. Instruction BOI-CF-IOR-60-40 specifies that electronic accounting documents must allow verification of the authenticity of their origin, the integrity of their content and their readability. An unsigned PDF file or one signed with a solution that does not comply with ETSI standards can be disputed. In case of rejection, the administration may proceed with official reconstruction of accounts, resulting in significant penalties.

Is electronic time-stamping mandatory for accounting records?

It is not formally required by a single text, but it is strongly recommended and often required in fact to establish proof of the date of accounting entries. Qualified time-stamping, defined in Article 3(33) of eIDAS and provided by a QTSP, creates an irrefutable presumption of the accuracy of the date and time in court. Without time-stamping, the date of entries can be disputed during a tax audit or dispute.

Conclusion

The compliance of electronically signed accounting records in France rests on an inescapable tripod: an appropriate signature level for the stakes involved (advanced or qualified), qualified electronic time-stamping provided by a referenced QTSP, and archiving with probative value complying with standard NF Z 42-013. The 2026-2027 electronic invoicing reform amplifies these requirements by automating the flows of incoming accounting data, making the strength of the downstream signature chain all the more critical.

Ignoring these obligations exposes the company to major tax and legal risks: rejection of records during a DGFIP audit, penalties reaching 80% of evaded tax, and potential liability of the manager or accountant.

Certyneo offers a SaaS qualified electronic signature solution, integrable with your ERP, eIDAS-compliant and referenced with ANSSI. Discover our pricing and start free to secure your accounting record signatures today.