2026 e-invoicing: the guide for e-commerce

An online seller rarely sells in one place. One order comes from Amazon, the next from the web store, a third at the shop counter, a fourth from a business customer by email. Each channel has its own back office and its own export format. As long as volume holds, you cope with the patchwork.

France's e-invoicing reform puts that patchwork under pressure. From 1 September 2026, your sales must feed a standardized invoicing and reporting chain. The reassuring part, on the operations side: the hard part is not issuing the invoice, your accounting software and its approved platform handle that. It is gathering those scattered sales, complete and accurate, before they enter the chain. A seller who has already centralized their channels starts with a head start.

2026 e-invoicing: who is concerned and by when?

The reform covers every business established in France and registered for VAT, with no size exemption. It rests on two obligations with distinct timelines: receiving electronic invoices, and issuing them (with e-reporting for sales that do not go through a business-to-business invoice).

Receiving becomes mandatory for everyone from 1 September 2026. Issuing arrives in waves: large enterprises and mid-caps on 1 September 2026, SMEs and micro-enterprises on 1 September 2027. E-reporting follows the same schedule as issuing. This progression is set in the 2024 Finance Act (article 91).

In practice, most online sellers (SMEs) will need to be able to receive an electronic invoice from 2026, and issue and report from 2027. Receiving comes first, and for everyone.

E-invoicing or e-reporting: which one applies to your online sales?

If you sell to French businesses, you fall under e-invoicing. If you sell to consumers or internationally, you fall under e-reporting: you transmit the transaction data, not a business-to-business electronic invoice.

That is the nuance that changes everything for an online seller. A web store mostly sells to consumers, and often across borders. Its core activity therefore falls under e-reporting, a regime most guides say little about.

Source: DGFiP, 2024 Finance Act (art. 91).

Who does what: approved platform, accounting software, PPF (and where an OMS stops)

Three building blocks carry compliance. The approved platform (registered by the tax administration, formerly PDP) issues, transmits and receives electronic invoices and carries e-reporting. Your accounting software (for example EBP, Pennylane or Sellsy) produces the invoice. The public invoicing portal (PPF) acts as a directory and aggregator: since October 2024, it no longer provides free invoice exchange. By 23 June 2026, the DGFiP already counted 152 registered platforms.

An OMS is none of these three blocks. It does not make you compliant and does not issue the electronic invoice. Its role is upstream: to provide a single, complete stream of sales data that the accounting software and its approved platform can turn into an invoice or a report.

NF525 is not e-invoicing. NF525 governs the tamper-proofing of your point-of-sale software (your in-store payments), an obligation distinct from the e-invoicing reform. If you take payments in-store, see NF525 for e-commerce: what changes.

The real work for a multichannel seller: gathering scattered sales

For a multichannel seller, the difficulty of the reform is operational first, not legal. You have to bring together, in one place, complete and accurate, sales that today live in separate systems.

The typical day: Amazon orders in Seller Central, the web store in its back office, B2B sales by email, stock in a spreadsheet updated when there is time. And the reform adds mandatory fields to invoices (the customer's SIREN, the delivery address, the nature of operations). Those details assume clean, centralized customer and order data. If the source is shaky, so is the report.

The OMS as the single source of sales that feeds your accounting

An order management system (OMS) brings the sales from all your channels into one screen, with unified stock. It is the single source that feeds your accounting software, without re-keying.

A concrete example: a home and garden distributor brought 5 sales channels onto one screen, with real-time unified stock. The result: 4 hours saved per day and same-day shipping becoming the norm. The sales data reaches the accountant complete, with no double entry. It is the foundation that makes the new invoicing chain manageable. myFulfillment centralizes those sales; its order management turns them into a single source. See the case study. Others connect OMS and WMS or automate multi-country fulfillment.

The physical store counts too: counter sales fall under e-reporting

If you also sell in-store, those consumer payments fall under e-reporting. When your point of sale writes into the same OMS as your e-commerce, those sales are already centralized and ready to report.

At an omnichannel seller, each counter sale becomes a standard OMS order, decremented from stock everywhere, with no double entry, in the same reporting as online sales. One distributor saw its counter grow from 0 to 25% of revenue in a year, with no parallel system and no manual reconciliation. myWebPOS writes into the same OMS; see the case study.

How to prepare your sales data before 1 September 2026

Four concrete tasks, to start without delay:

1. Centralize the sales from all your channels (site, marketplaces, store) into a single source.
2. Get the mandatory fields right: the customer's SIREN (in B2B), the delivery address, the nature of operations.
3. Choose your accounting software and check that it is linked to an approved platform.
4. Map your sales: B2B (e-invoicing) on one side, B2C and international (e-reporting) on the other.

The 1 September 2026 date remains the official deadline in force; limited start-up tolerances are mentioned, but it is better to prepare your data without counting on them.

To know exactly what applies to your store, take the 2026 e-invoicing compliance test in two minutes: you will know which regime you fall under and what is left to prepare.

In short

The reform arrives in stages: receiving for every VAT-registered business on 1 September 2026, then issuing and e-reporting in waves (2026 for large enterprises and mid-caps, 2027 for SMEs and micro). For an online seller, most consumer sales fall under e-reporting. Compliance is carried by your accounting software and its approved platform, not by your operations tool. The real work is upstream: gathering clean, complete sales. An OMS like myFulfillment is built for that.