Electronic Signature in Finance: Compliance 2026

Introduction

The financial sector is one of the most heavily regulated environments in the world, and document dematerialisation is no exception to this reality. In 2026, electronic signatures in the financial sector and regulatory compliance are inseparable: between the revised eIDAS regulation, the DORA regulation which came into force in January 2025, the GDPR and the requirements of the ACPR, banking institutions, asset management companies, insurers and fintechs must navigate a dense regulatory framework. This article guides you through applicable obligations, signature levels required depending on the acts and best practices for deploying a compliant solution without sacrificing operational fluidity.

---

Why Electronic Signature is Strategic for Finance

Financial institutions generate considerable document volumes: account opening contracts, management mandates, credit conventions, insurance rider amendments, subscription bulletins, pledge agreements. According to McKinsey, complete dematerialisation of document processes in finance can reduce operational costs by 20 to 35% and reduce case processing times by four.

But beyond productivity gains, electronic signature addresses specific regulatory imperatives for the sector:

• Traceability of commitments: Article L. 533-11 of the Monetary and Financial Code requires investment service providers to retain all contractual documentation in an intact and accessible manner.
• Customer identification (KYC): Anti-money laundering requirements (5th AML directive, transposed by Ordinance 2020-1342) impose robust verification of the signatory's identity.
• Probative archiving: Preservation with legal value of signed documents must comply with NF Z 42-013 standards and ACPR requirements regarding retention periods.

To understand the foundations of the legal value of electronic signatures, it is essential to distinguish the three levels defined by eIDAS before applying the right solution to each act.

The Three Levels of Signature According to eIDAS in Finance

Regulation eIDAS No. 910/2014 (and its evolution eIDAS 2.0, with progressive deployment since 2024) distinguishes three levels of electronic signature, whose relevance varies depending on the legal nature of the financial act:

1. Simple Electronic Signature (SES): suitable for routine management documents, receipts, client letters or low-risk internal forms. It does not guarantee the signatory's identity with a high assurance level.

2. Advanced Electronic Signature (AES): requires a unique link with the signatory, identification of the latter and detection of any subsequent modification. It is suitable for SEPA mandates, account conventions, standard personal loan contracts.

3. Qualified Electronic Signature (QES): based on a qualified certificate issued by a trusted service provider (TSP) accredited on the European Trust List. It alone has the same value as a handwritten signature under Union law. QES is indispensable for notarised dematerialised acts, pledges or certain bank guarantees.

For an in-depth analysis of eIDAS 2.0 requirements applicable to your sector, consult our complete guide to the eIDAS regulation.

---

DORA and its Impact on Digital Document Management

Regulation DORA (Digital Operational Resilience Act, EU 2022/2554), which came into application on 17 January 2025, introduces an unprecedented framework for operational digital resilience of financial entities. It applies to banks, insurance companies, management companies, central counterparties, trading venues and cryptographic service providers.

What DORA Concretely Requires

DORA does not directly target electronic signatures, but its provisions have direct implications for the choice and audit of signature solutions used by financial players:

• Article 28 DORA: financial entities must contract with ICT service providers (including electronic signature editors) ensuring that the latter comply with defined service, security and continuity levels. Contracts with critical service providers must include reversibility and audit clauses.
• Article 30 DORA: audit rights of competent authorities must be contractually guaranteed with third-party providers.
• ICT risk management (Articles 5 to 15): the electronic signature process must be mapped as a critical or important function, with an associated continuity plan.

In practice, a bank that uses a SaaS electronic signature solution must ensure that its supplier can provide audit reports, guarantee availability above 99.9% and comply with data location requirements (data residency in the EU).

Articulation DORA / eIDAS / GDPR

These three regulations overlap without contradicting each other:

• eIDAS defines the legal value of the signature and technical requirements for TSPs.
• DORA imposes resilience and risk management related to digital service providers.
• GDPR protects personal data processed during the signature process (identity, IP address, behavioural biometrics for authentication).

The articulation of these three frameworks requires compliance managers and IT directors to conduct thorough due diligence when choosing their solution. Our comparison of electronic signature solutions can help you evaluate the relevant criteria for the financial sector.

---

Specific Sectoral Requirements: ACPR, AMF and MiFID II Directive

Beyond the European foundation, French financial players must comply with sectoral requirements issued by national and European regulators.

ACPR Position on Dematerialisation

The Autorité de Contrôle Prudentiel et de Résolution (ACPR) has specified in several recommendations (notably its position 2013-P-02 on electronic marketing and its subsequent revisions) that the electronic signature of life insurance contracts, insurance or bancassurance contracts must:

• Be associated with an identity verification process compliant with Decree 2017-1416 relating to electronic signatures.
• Be accompanied by pre-contractual information provided electronically before signature.
• Be preserved in a secure archiving system for a minimum period of 10 years after the end of the contract.

MiFID II and Documentation of Management Mandates

MiFID II Directive (2014/65/EU, transposed into French law) requires management companies and investment advisers to exhaustively document the client relationship. The electronic signature of management mandates, MiFID profiling questionnaires and risk information letters must provide a complete audit trail: certified timestamp, signatory identity, document integrity.

Qualified electronic timestamping constitutes an indispensable complement to signature in this context: it establishes incontestable proof of the date and time of signature, essential in case of dispute over the precedence of an commitment.

Anti-Money Laundering and Identity Verification

The 6th AML directive (AMLD6), whose transposition into French law was expected by mid-2025, strengthens customer due diligence obligations. Recourse to electronic signatures in a fully dematerialised KYC process is now possible under conditions:

• Use of a high assurance level (LoA High) for identification, compliant with eIDAS 2.0 repository.
• Verification of authenticity of identity documents by an accredited service provider (recognition of AI technology for document verification under the AI Act framework).
• Preservation of identity evidence for the legally required period (5 years after the end of the business relationship).

---

Deploying a Compliant Electronic Signature Solution in Finance: The Practical Guide

Implementation of an electronic signature solution in a financial institution must follow a structured methodology to guarantee compliance, security and user adoption.

Step 1 — Map Document Flows and Define Required Levels

Begin with an audit of existing document processes. Classify each document type along three axes: legal risk, regulatory requirement, and frequency. This criticality matrix will allow you to allocate the right signature level (simple, advanced or qualified) to each flow, avoiding costly over-engineering or risky under-protection.

Step 2 — Select a Qualified DORA-Compatible Service Provider

Your supplier must be listed on the European Trust List (for QES), have ISO 27001 certification and infrastructure hosted in the European Union. It must also be able to provide a SOC 2 Type II report or equivalent to satisfy DORA audit requirements. Contractual clauses must explicitly provide for audit rights, availability SLAs and reversibility terms.

Step 3 — Integrate Signature into Digital Customer Journeys

User experience is a key adoption factor. A signature solution well integrated via REST API into your CRM, portfolio management tool or subscription platform reduces friction and limits abandonment. For institutions migrating from an existing solution, our migration offer to Certyneo enables smooth transition of operational workflows.

Step 4 — Establish Probative Archiving

Signature alone is not sufficient: the proof file (audit log, signature certificate, timestamp, identity evidence) must be archived in a system compliant with NF Z 42-013 standard and ETSI EN 319 162 standard for qualified deposit services. This archiving must be accessible and readable for the entire legal retention period applicable to each document category.

Legal Framework Applicable to Electronic Signatures in the Financial Sector

European Founding Texts

Regulation eIDAS No. 910/2014 (and its evolution eIDAS 2.0 via Regulation EU 2024/1183): this text constitutes the cornerstone of electronic signatures in Europe. It defines the three levels of signature (simple, advanced, qualified), establishes the system of mutual recognition of qualified trusted service providers (TSP) and sets out the principle of equivalence of qualified signatures with handwritten signatures. Its Article 25 provides that a qualified electronic signature has the same legal value as a handwritten signature.

Civil Code, Articles 1366 and 1367: Article 1366 recognises the legal value of electronic documents provided that its author is duly identified and the integrity of the document is guaranteed. Article 1367 defines the conditions for validity of electronic signatures under French law, referring to Decree 2017-1416 for technical procedures.

Decree No. 2017-1416 of 28 September 2017: this text specifies the technical requirements applicable to electronic signatures in France, in line with eIDAS. It establishes a presumption of reliability for signatures based on a qualified signature creation device.

Financial Sectoral Regulations

Regulation DORA (EU 2022/2554): applicable since 17 January 2025, it requires financial entities to rigorously manage risks related to ICT service providers, including electronic signature solution suppliers. Articles 28 to 30 define minimum contractual requirements towards critical third-party providers.

Monetary and Financial Code, Article L. 533-11: requires investment service providers to retain all contractual documentation in conditions allowing the reconstruction of exchanges and commitments.

MiFID II Directive (2014/65/EU) and its delegated acts: require complete and traceable documentation of the client relationship, particularly for management mandates and suitability assessments.

5th and 6th AML directives (transposed by Ordinance 2020-1342 and its implementing texts): strengthen customer identity verification obligations in dematerialised processes.

Applicable Technical Standards

• ETSI EN 319 132: technical standard for advanced electronic signature formats (XAdES, CAdES, PAdES).
• ETSI EN 319 162: relating to qualified electronic deposit services.
• NF Z 42-013: French standard on electronic archiving systems with probative value.
• ISO 27001: reference certification in information security for service providers.

Legal Risks in Case of Non-Compliance

A financial institution using an inadequate electronic signature (insufficient security level regarding the signed act) faces several risks: contract nullity or signature opposition in case of dispute, administrative sanctions from the ACPR or AMF which can amount to several million euros, engagement of the institution's civil liability, and damage to commercial reputation. GDPR compliance must also be ensured: processing of biometric or identity data within dematerialised KYC requires an explicit legal basis and prior impact assessment (DPIA).

Concrete Use Cases in the Financial Sector

Scenario 1 — Life Insurance Contract Subscriptions in a Banking Network

A bancassurance network processing approximately 15,000 life insurance subscriptions per year dematerialised its entire customer signature journey. Previously, each file required a postal round trip and an average delay of 8 to 12 business days before collecting the customer's signature. After deployment of an advanced electronic signature solution integrated into advisers' CRM, with OTP (One-Time Password) sent to the customer's mobile for enhanced authentication, signature delay was reduced to less than 24 hours in 87% of cases. Subscription abandonment rate decreased by 23%, and printing, postage and physical archive management costs were reduced by approximately 65%. The proof file (signature certificate, timestamp, audit log) is automatically archived in a digital safe compliant with NF Z 42-013 for 10 years after contract termination, in accordance with ACPR requirements.

Scenario 2 — Management Mandates and MiFID II Documentation in a Management Company

A portfolio management company managing approximately 800 private clients must renew management mandates, MiFID profiling questionnaires and risk information letters annually. This process historically represented an administrative burden of 3 to 4 person-weeks per year, with manual follow-up of reminders and a high risk of unsigned mandates in time. After integration of an advanced electronic signature solution via API into their portfolio management system, with automated reminder workflow and real-time tracking dashboard, the company reduced the renewal cycle from 28 days to 4 days on average. The rate of mandate completion before the regulatory deadline increased from 74% to 98%. Automatic archiving of signed files with qualified timestamp provides a complete audit trail in case of AMF inspection, without additional manual handling.

Scenario 3 — Fully Dematerialised KYC Process in an Online Consumer Credit Fintech

A fintech specialising in online consumer credit designed a 100% digital customer onboarding journey, from identity verification (identity document scan + biometric verification by liveness detection) to signature of the credit offer. The choice of an advanced electronic signature with enhanced identification (compliant with the substantial assurance level of eIDAS) made it possible to meet 5th AML directive requirements while maintaining a smooth journey, completed in less than 10 minutes on average. Conversion rates increased by 18 points compared to the previous hybrid paper process. All identity data collected is encrypted and stored in infrastructure hosted in France, with a retention policy of 5 years after the end of the business relationship, in accordance with AML-CFT obligations. The signature supplier provided DORA-compatible contractual clauses required for service provider categorisation and concentration risk management.

Conclusion

In 2026, electronic signatures in the financial sector are no longer a technology option: they are an operational and regulatory obligation. Between eIDAS 2.0, DORA, the requirements of the ACPR, AMF and AML directives, institutions that have not secured their document processes face major legal, financial and reputational risks. The right signature level, a qualified DORA-compatible service provider, robust probative archiving and smooth integration into customer journeys: these are the four pillars of a compliant and high-performing document strategy.

Certyneo was designed to precisely meet the requirements of the financial sector: sovereign infrastructure hosted in France, eIDAS and DORA compliance, complete audit and robust API. Discover our pricing and start your free trial today, or estimate your return on investment thanks to our dedicated tool.