Electronic invoicing: a complete guide to the French reform and its implementation

Electronic invoicing is entering its generalisation phase in France. From 1 September 2026, all companies established in France must be able to receive electronic invoices from their suppliers. Large companies and mid-sized enterprises must, as of that date, issue electronic invoices exclusively for their domestic B2B sales. Extension to small and medium-sized businesses follows on 1 September 2027.

This reform constitutes one of the most structuring transformations for Procurement, Accounting and Finance functions since the introduction of the euro. Beyond the legal obligation, it deeply reorganises the flows of exchange between companies, invoice processing and the quality of data available for steering.

Access the Platform

Yet many companies underestimate the scope of the preparations to be conducted. Far more than a simple format change, electronic invoicing imposes a complete review of the invoice chain, from the customer/supplier reference to archiving, via accounting reconciliation and tax controls.

This guide offers a complete overview. The regulatory framework and its schedule. The legal and technical obligations. The operational benefits. And above all, the method to carry out the transition within the deadlines.

Electronic invoicing in figures

What is electronic invoicing?

Definition

Electronic invoicing refers to an invoice issued, transmitted and received in a structured electronic form, automatically readable by the information systems of companies and the tax authority. It differs from the digitised paper invoice and from the traditional PDF invoice, both of which remain images meant for human reading.

An electronic invoice within the meaning of the reform has three characteristics. It is issued in a recognised structured format (Factur-X, UBL, UN/CEFACT CII). It is transmitted via a recognised communication channel (partner platform or public invoicing portal). It bears the required legal mentions and tax data in a form exploitable by automated processing.

This rigorous definition explains why a simple PDF sent by email, even if structured, will no longer be considered a compliant invoice once the reform is generalised.

Difference between PDF, EDI and structured invoice

Three formats coexist today in B2B invoicing practices and deserve to be distinguished.

The PDF, generated by an accounting or office system, is an image meant for human reading. Its processing by the recipient relies on manual entry or on a character recognition device (OCR), with the associated imprecisions.

EDI (Electronic Data Interchange) refers to an exchange of structured data between two information systems according to a bilaterally defined protocol. It is a historical format, widely deployed in large retail and large industry, but little accessible to SMEs due to its implementation complexity.

The structured electronic invoice within the meaning of the reform combines both logics. It offers a file carrying both a readable image (PDF) and structured data (XML), or a fully structured file (UBL, CII). It fits into open standards accessible to all company sizes.

European and national legal framework

Electronic invoicing fits within a European dynamic in which France is one of the drivers. European directive 2014/55 set the principle of mandatory electronic invoicing in public procurement, already in force under the name Chorus Pro for suppliers of the French public sphere. The ViDA directive (VAT in the Digital Age) extends this logic by imposing, by the 2030 horizon, generalised electronic invoicing for intra-community exchanges.

Nationally, the 2020 Finance Act laid down the principle of mandatory generalisation. The operational framework was clarified by several orders and decrees between 2021 and 2025, as well as by the external specifications published by the DGFiP and the AIFE (State IT Finance Agency).

The French reform: schedule and actors

The switchover schedule

Generalisation takes place in two stages, depending on the company size measured according to INSEE criteria.

1 September 2026. All companies established in France must be able to receive electronic invoices. Large companies (5,000 employees or more, or more than 1.5 billion euros in revenue) and mid-sized enterprises (250 to 5,000 employees, or 50 million to 1.5 billion euros) must issue electronic invoices exclusively for their domestic B2B operations.

1 September 2027. The issuance obligation extends to small and medium-sized enterprises as well as micro-businesses and self-employed workers. From that date, all domestic B2B flows switch to structured electronic invoicing.

This schedule has been stabilised after several adjustments and constitutes, to date, the reference framework. Every French company should treat these dates as firm in its deployment plans.

The PPF, directory and concentrator

The Public Invoicing Portal (PPF) is the public infrastructure operated by the AIFE on behalf of the DGFiP. Its role has been clarified during the reform. It now essentially plays the role of central directory, identifying each company and linking it to its reception platform(s). It also serves as a concentrator for tax data uploads to the authority.

The PPF no longer plays, since the reform evolved, the role of free routing platform offered to all companies. That mission has been entrusted to partner platforms (PDPs) operated by private actors registered with the State.

Partner dematerialisation platforms (PDPs)

Partner Dematerialisation Platforms (PDPs) are private operators accredited by the State to receive, issue, transform and route electronic invoices. Every French company must, from September 2026, choose at least one PDP to receive its supplier invoices.

A PDP’s missions cover the identification of issuer and recipient via the PPF, format conversion if necessary, routing of the invoice to the recipient’s PDP, preservation of sending and reception proofs, upload of tax data to the authority and management of the invoice life cycle (statuses).

PDP accreditation is granted by the State after audit. It constitutes a guarantee of technical and organisational compliance. The list of accredited PDPs is public and regularly updated by the DGFiP.

The role of publishers and internal operators

Alongside the PPF and PDPs, publishers of accounting software, ERPs and procurement platforms play a decisive role. They can natively integrate compliance into their solutions, offer connectors to partner PDPs and support their customers in the transition. Companies in practice have an interest in favouring publishers that have integrated these capabilities into their product roadmap.

Legal and technical obligations

Issuing a compliant invoice

Issuing a compliant invoice requires mastering several elements. The issued format must correspond to one of the formats recognised by the reform. Mandatory legal mentions must be present and correctly structured. The recipient identifier (SIRET, intra-community VAT number) must be correct and recognised by the PPF directory. The transmission channel must use an accredited PDP.

The company remains responsible for the compliance of its invoice content. The PDP guarantees transmission and traceability, not the accuracy of the information issued.

Receiving and integrating invoices

Reception requires, upstream, the choice of a PDP that will collect invoices issued by suppliers. The company must communicate its PDP choice to its partners via the PPF. The PDP then receives all invoices, performs the necessary conversions and makes them available to the company within its systems (ERP, P2P platform, accounting).

Integrating received invoices into existing systems is often the main point of difficulty in the project. The structured format offers the opportunity to automate reconciliations (order, reception, invoice) but requires that internal references measure up.

Accepted formats

Three formats are recognised by the reform for invoices issued and received.

Factur-X. Hybrid format combining a readable PDF/A-3 and a structured CII XML file embedded in the PDF. It is the most accessible format for SMEs, as it preserves human readability while exposing structured data.

UBL (Universal Business Language). Fully structured XML format, supported by OASIS and widely adopted internationally. Particularly suited to high-volume flows.

UN/CEFACT CII (Cross Industry Invoice). XML format defined by the United Nations, basis of the PEPPOL standard used in several European countries.

Every PDP must accept these three formats in input and output. The choice of format thus becomes a question of operational opportunity rather than an obligatory friction point.

E-reporting of complementary data

In addition to domestic B2B electronic invoicing, the reform introduces an e-reporting obligation for transactions not covered by electronic invoicing. Concerned are B2C transactions (invoices issued to private individuals), international transactions (exports, imports, intra-community) and certain specific operations (instalments, reverse charge).

E-reporting consists in periodically transmitting to the authority the aggregated tax data of these transactions. The company’s PDP generally takes care of this transmission.

The invoice life cycle and statuses

The reform introduces a standardised tracking of the invoice life cycle through a series of standard statuses. Issued, transmitted, received, made available, recorded, contested, approved, rejected, paid: as many events timestamped and tracked by the PDPs of both parties.

This structured tracking transforms the customer-supplier relationship by eliminating ambiguity about the reception date, dispute reasons or payment deadlines. It constitutes, in the long term, a major lever for improving commercial relationships and cash flow.

The benefits for Procurement and Finance

Processing cost reduction

Studies converge on a finding. The full cost of processing a paper or PDF invoice sits, on average, between 9 and 12 euros, integrating reception, entry, reconciliation, allocation, control, archiving and any disputes. The equivalent cost of a structured electronic invoice sits between 1 and 4 euros, a reduction of approximately 60 to 80%.

This gain materialises progressively, as the share of structured invoices in the incoming flow increases. Companies that have already reached a significant share observe substantial annual cost reductions, particularly marked on high-volume, low-unit-value flows.

Cycle acceleration

Beyond unit cost, electronic invoicing significantly accelerates cycles. Reception is immediate. Reconciliation with order and reception can be automated. Validation is facilitated by digital workflows. Approval times shorten.

This acceleration translates, on the supplier side, into faster payments and improvement of working capital. It constitutes, in the commercial relationship, a concrete lever of improvement.

Mastery of tax risk

Structured electronic invoicing strengthens the mastery of tax risk. Mandatory mentions are controlled at issuance. Data is uploaded to the authority in near-real time. Life-cycle traceability is complete.

For Finance, this robustness reduces exposure to reassessments and facilitates tax audits. For the authority, it allows better detection of anomalies and a reduction of the VAT gap.

Cash flow visibility

The standardised timestamping of invoice statuses offers, for the first time, reliable visibility on upcoming commitments. Finance departments can more precisely anticipate their inflows and outflows, optimise treasury and better dialogue with their banking partners.

This dimension, undervalued in the first communications about the reform, constitutes, in the long term, one of its most structuring contributions to financial steering.

How to prepare for the transition

The preparation for the transition is organised according to a structured five-step approach. The challenge is less technical than organisational: it is a matter of overhauling the invoice chain end-to-end, seizing the reform as an opportunity to make sometimes legacy processes more reliable.

Mapping the inbound and outbound flows

The first step consists in drawing up a precise inventory of the company’s invoice flows. Annual volume by typology (domestic B2B, B2C, international, public sector). Profiles of suppliers concerned (size, location, sector). Tools involved (ERP, accounting software, P2P platform, e-signature). References to make reliable (SIRET, intra-community VAT, routing coordinates).

This mapping often reveals greater diversity than initially estimated and helps prioritise the preparation worksites.

Choosing a PDP

The PDP choice constitutes a structuring decision. Several criteria deserve objectification. Functional coverage (issuance, reception, conversion, e-reporting, archiving). The quality of native integrations with existing systems. Operational robustness (volumes handled, SLAs, support). The operator’s durability. Tariff conditions over time.

For mid-sized and large companies, a setup combining a main PDP and a secondary PDP for resilience may be relevant. For SMEs, a single well-sized PDP generally suffices.

Upgrading customer and supplier references

The quality of references is the most underestimated point of the transition. An outdated company name, an inaccurate SIRET, an obsolete billing address immediately block invoice routing via the PDP. Discrepancies that went unnoticed in a PDF chain become deal-breakers in electronic invoicing.

The reference upgrade phase represents, in feedback, between one third and one half of the total preparation effort. It is, in practice, the worksite that determines the success of the transition.

Defining internal processes

Electronic invoicing implies revisiting several internal processes. The supplier invoice approval circuit. Dispute and contestation management. Accounting and analytical allocation. Reconciliation with orders and receptions. Compliance controls at issuance. Probative archiving.

This review is an opportunity to streamline processes sometimes weighed down by history and to align practices between subsidiaries or entities.

Bringing teams on board

The human dimension remains central. Accounting, Procurement and operational teams must understand the new invoice chain, master the new tools and adapt their practices. Upstream clear communication, training by use case and post-go-live support constitute the classic levers of a successful switchover.

Organisations that have anticipated this dimension from the framing phase observe noticeably smoother transitions than those addressing it downstream of the technical deployment.

What does an adapted solution look like?

The electronic invoicing solutions market is rapidly densifying as the deadlines approach. Five criteria differentiate truly adapted solutions from improvised arrangements.

PDP accreditation or solid partnership

For solutions that themselves play the role of PDP, State accreditation constitutes the first guarantee of compliance. For solutions relying on a PDP partner, the quality of the partnership (native integration, service commitments, durability) must be demonstrated. The list of accredited PDPs is public and must be systematically verified.

Native ERP and accounting integrations

The operational value of a solution depends largely on the quality of its integrations with existing systems. ERP connectors, integration with accounting software, feeding of steering tools, synchronisation with procurement tools: as many integrations that must be native rather than custom-developed.

End-to-end invoice cycle management

A complete solution covers the entire cycle, from order to archived invoice. This native integration avoids chain breaks between procurement and accounting processes, classic source of productivity loss and errors.

Coherence with procurement flows

The invoice is the outcome of a procurement process. A solution that dissociates invoice processing from the upstream procurement cycle (supplier referencing, order, reception) creates harmful breaks. Conversely, a comprehensive platform (P2P integrating the invoice) industrialises reconciliation and approval, relying on data already made reliable upstream.

Data sovereignty and compliance

The sensitivity of the tax and commercial data carried by invoices imposes a high level of requirement on hosting and compliance. EU hosting, no transfer to third-country jurisdictions, native GDPR compliance and a commitment not to use the data for the training of third-party models constitute as many guarantees to require formally.

Frequently asked questions

Which companies are affected by the reform?

All companies established in France and subject to VAT are concerned, without exception. This includes companies, sole traders, micro-entrepreneurs, associations carrying out an economic activity and public establishments with commercial activity. Only the obligation schedule varies according to size.

What is the difference between PPF and PDP?

The Public Invoicing Portal (PPF) is the public infrastructure operated by the AIFE. It plays the role of central directory and tax data concentrator. Partner Dematerialisation Platforms (PDPs) are private operators accredited by the State that ensure the operational transmission of invoices and technical compliance. Every French company must choose at least one PDP to ensure its connection.

Can I keep sending PDF invoices by email from September 2026?

No, not for domestic B2B operations. From their issuance obligation date, companies must issue exclusively structured electronic invoices via a PDP. A PDF invoice transmitted by email to a B2B French customer will no longer be considered valid. Exceptions concern B2C, international operations and certain specific situations falling under e-reporting.

Which format should I choose between Factur-X, UBL and CII?

The three formats are accepted by all PDPs. The choice depends on the company profile. Factur-X is particularly suited to SMEs wishing to keep human readability of the invoice. UBL and CII are rather suited to high-volume organisations that favour the purity of automated processing. The same company may issue in one format and receive in another, the PDP ensuring the necessary conversions.

How much does the switch to electronic invoicing cost?

The cost breaks down into three main blocks. The PDP subscription, generally billed per volume or by tranche. The upgrade of existing systems (references, integrations, parameterisation of internal processes). Change support (training, communication, post-switch support). This initial cost is quickly offset by the reduction in unit processing cost, particularly marked on high volumes.

What happens if a company is not ready by the deadline?

The inability to receive electronic invoices will expose the company to a chain break with its suppliers and, in the longer term, to tax sanctions. The absence of compliant issuance will expose the company to rejection of its invoices by its customers, with immediate consequences for its treasury. Preparation ahead of the deadlines is not optional.

Does electronic invoicing replace existing EDI?

For companies that have already deployed EDI, the reform does not impose dismantling existing arrangements. EDI flows may continue to operate, provided they comply with the reform’s requirements (recognised formats, transit via accredited PDPs). In practice, many companies take advantage of the transition to streamline their landscape and switch their legacy EDI flows onto the PDP chain.

How to articulate electronic invoicing with existing P2P processes?

Electronic invoicing finds its full value when it fits within an end-to-end digitised procurement process. A procurement platform covering the cycle from requisition to invoice industrialises order/reception/invoice reconciliation, makes allocations more reliable and accelerates approvals. Conversely, a procurement chain that remains manual limits the gains that electronic invoicing allows to capture. The transition constitutes, in many organisations, an opportunity to simultaneously engage P2P digitalisation.