Electronic invoicing: definition, operation and obligations

Electronic invoicing does not consist of scanning an invoice, but is based on a more demanding principle: transforming the invoice into structured data, transmitted via a standardized system.

From 2026, this definition will no longer be theoretical. It will condition the ability of companies to issue, receive and process their financial flows.

What an electronic invoice actually is

An electronic invoice, within the meaning of the reform, is not reduced to a PDF file sent by email.

It must meet three cumulative criteria:

  • be issued in a structured format (like Factur-X, UBL or CII)
  • be transmitted via an approved platform
  • be automatically usable by information systems

The PDF may remain as a visual representation, but it no longer constitutes the reference medium. The invoice becomes above all a set of organized data.

Formats: data standardization

Three main formats are retained in the French framework:

  • Factur-X : hybrid format combining a readable PDF and an XML data file
  • UBL (Universal Business Language) : structured format widely used internationally
  • CII (Cross Industry Invoice) : standard developed by the UN

These formats have one thing in common: they allow automatic reading, without human intervention.

Each invoice therefore contains standardized fields:

  • identification of the parties
  • billing lines
  • amounts
  • VAT
  • payment terms

Data structuring becomes a basic requirement.

The central role of approved platforms

The second pillar of the system is based on the approved platforms.

They perform several functions:

  • receipt and issuance of invoices
  • conversion to required formats
  • compliance check
  • transmission of data to the administration

A company can no longer send an invoice directly to its customer. It must go through a platform, which becomes a mandatory technical intermediary.

How an invoice circulates: the real flow

The operation can be described sequentially:

  1. Emission of the invoice from software or a platform
  2. Transmission to the issuer’s platform
  3. Identification from the recipient’s platform via a directory
  4. Routing to the customer’s platform
  5. Reception and integration into its system
  6. Partial data transmission to the administration

This scheme replaces direct sending by email or post. The invoice is no longer transmitted, it is routed in an interconnected system.

E-invoicing and e-reporting: two distinct obligations

The device distinguishes two use cases.

E-invoicing

  • concerns transactions Domestic B2B
  • imposes transmission and reception via a platform

E-reporting

  • concerns transactions off-screen (B2C, international)
  • requires the transmission of data to the administration

Concretely, a company must:

  • send your B2B invoices via the system
  • declare your other flows according to specific terms

The whole aims to cover all economic activity.

What businesses need to put in place

The reform involves concrete adaptations.

1. Choose a platform

  • external approved platform
  • integrated solution via a publisher or an accountant

2. Adapt the tools

  • compatible billing software
  • integration with accounting systems

3. Structure the data

  • quality of customer information
  • consistency of mandatory information
  • management of VAT rules

4. Connect streams

  • automation of transmission and reception
  • synchronization with existing tools

The subject quickly becomes transversal: finance, IT, operations.

The most common errors

Several points of friction are already appearing.

  • Confusing PDF and electronic invoice
  • Postpone adaptations to 2027
  • Underestimating technical integration
  • Choosing a platform without a long-term vision

The complexity does not lie in issuing an invoice, but in its integration into a constrained system.

A definition that already involves structuring choices

The technical definition of the electronic invoice contains its implications.

By imposing:

  • standardized formats
  • mandatory transmission channels
  • technical intermediaries

the reform introduces a logic of flow structuring which goes beyond mere conformity. It is no longer just the way of issuing an invoice that changes, it is the way in which it fits into a system, and the dependencies that this system creates.