Mandatory reception from 1 September 2026, accredited platforms, e-reporting, penalties: what businesses in Metz, Nancy, Thionville or Strasbourg need to sort out this year, and in what order.
In short. France's e-invoicing mandate becomes real for every French business subject to VAT: from 1 September 2026, all of them must be able to receive electronic invoices through an accredited platform, micro-entrepreneurs included. Large companies and mid-caps must also issue from that date; SMEs, small businesses and micro-enterprises start issuing on 1 September 2027. For an SME in the Grand Est, preparation comes down to three workstreams: pick an accredited platform, clean up invoicing data, train the team. Nothing overwhelming, provided you do not wait until August.
In Metz, Nancy, Thionville or Strasbourg, the question is no longer "will this reach me" but "where do I start". The reform was postponed several times, which bred a comfortable scepticism. That scepticism is no longer affordable: the timetable set by the 2024 finance act is confirmed, the central directory has been running since 18 September 2025, and penalties were spelled out in the 2026 finance act. This guide covers what is coming, with particular attention to businesses that also work with Luxembourg, a common situation in the region.
Who is covered by the 2026 e-invoicing mandate, and when?
Every business established in France and subject to VAT is covered, including micro-entrepreneurs under the VAT franchise. From 1 September 2026, all must be able to receive electronic invoices; large companies and mid-caps must also issue them. SMEs, small businesses and micro-enterprises start issuing on 1 September 2027.
| Deadline | Obligation | Who |
|---|---|---|
| 1 September 2026 | Receiving electronic invoices | All VAT-registered businesses |
| 1 September 2026 | Issuing + e-reporting | Large companies and mid-caps |
| 1 September 2027 | Issuing + e-reporting | SMEs, small and micro businesses |
One point is widely misunderstood: even if your Moselle-based SME will only issue in 2027, the 2026 reception obligation already requires you to be connected to an accredited platform. Your suppliers will start sending through that channel in September 2026, and an invoice you cannot receive is an invoice that blocks your input VAT. A one-quarter postponement by decree remains legally possible, but building your plan on that assumption would be a gamble.
E-invoicing and e-reporting: two obligations, not one
The reform rests on two complementary mechanisms. E-invoicing covers your invoices between French VAT-registered businesses: they will travel through accredited platforms, in a structured format. E-reporting covers everything else: sales to consumers (B2C), transactions with foreign clients and out-of-scope operations. You do not transmit the invoice itself, but the transaction data, on a set schedule.
This is where the Grand Est stands out: a business in Thionville or Metz invoicing Luxembourg clients is doing international trade as far as the reform is concerned. Those sales do not escape the system, they fall under e-reporting. Many cross-border SMEs still ignore this, even though e-reporting penalties are heavier than e-invoicing ones. And do not confuse the two obligations: e-reporting does not replace your VAT return, it comes on top of it.
Accredited platforms, the directory, formats: how invoices flow
The architecture has changed since the reform was first announced, and many articles online still describe the old world. The actual state in July 2026: invoices are exchanged through accredited platforms (PA, the 2025 terminology replacing "PDP"), registered for 3 years by the DGFiP, the French tax administration. The public invoicing portal (PPF) has not exchanged invoices since October 2024: it has refocused on the central directory, open since 18 September 2025, and on the data concentrator, in production since February 2026 on the Chorus Pro foundation.
Three practical consequences. One: there is no free public option any more, every business must go through an accredited platform. Two: a direct Peppol connection is not enough, it does not comply with the French system. Three: nothing changes for your public-sector clients, Chorus Pro remains the B2G channel. On formats, three are accepted for reception: Factur-X (hybrid PDF + XML, the most common in France), UBL 2.1 and CII.
Then there is cost. Some platforms charge per invoice or by subscription, which hits small businesses with high volumes. Make it a selection criterion in its own right: Odoo, for instance, has been an accredited platform with the DGFiP since spring 2026, and its e-invoicing is free and unlimited, built into the software, with no third-party subscription and no per-invoice fee.
What actually changes on your invoices
From 1 September 2026, four new mandatory mentions appear on invoices: the client's SIREN number, the category of operation (goods, services or mixed), the "VAT on debits" option where applicable, and the delivery address when it differs from the billing address.
The reform also imposes a lifecycle: each invoice will carry standardised statuses (submitted, rejected, refused, paid) that circulate between platforms. No more invoices sent into the void: you will know whether your client received and refused one, and your suppliers will know the same about yours. That assumes spotless client records: one wrong SIREN and the invoice never finds its recipient in the directory.
Penalties: what the 2026 finance act provides
The penalty regime was set by the 2026 finance act, enacted in February 2026: 50 € per invoice not issued electronically (capped at 15 000 € per year), 500 € per missing e-reporting transmission (same cap), and 500 € then 1 000 € per quarter for failing to declare a reception platform. The "right to error" doctrine protects documented good faith, not inaction.
The real risk is not the fine anyway. A non-compliant invoice means input VAT the administration can refuse, and a chain of client disputes. The cost of disorder quickly exceeds the cost of compliance.
Working with Luxembourg? Keep the calendars apart
One confusion keeps coming back in the region: applying the French timetable to Luxembourg, or the reverse. The two regimes have nothing in common. In the Grand Duchy there is currently no B2B e-invoicing obligation between private businesses; only the public sector (B2G) is covered, via Peppol. We covered the Luxembourg side in detail in our guide to e-invoicing in Luxembourg.
For a Grand Est business, the correct reading is: your French domestic flows move to e-invoicing on the 2026-2027 timetable; your sales to Luxembourg fall under French e-reporting; and if you own a Luxembourg entity, it follows the Grand Duchy's rules, not France's. Writing this map down, flow by flow, is the first step of any serious compliance audit.
Where to start before September
Here is the sequence we run with our clients, in four steps. First, map the flows: who invoices you, whom you invoice, how much is French B2B, B2C, international. Second, choose the accredited platform and register in the central directory, an operation that requires identity verification of a legal representative and is better prepared than improvised. Third, clean the data: SIREN, SIRET and VAT numbers of every partner, mandatory mentions configured in the invoicing tool. Fourth, train the team and test on a pilot scope before the deadline.
A 12-person services SME we recently supported completed the whole programme in three calendar weeks, with most of the time spent cleaning client records rather than on technology. That is typical: 2026 compliance is first and foremost a data project.
Frequently asked questions
Is e-invoicing mandatory for micro-entrepreneurs?
Yes. Every VAT-taxable person established in France is covered, including micro-entrepreneurs under the VAT franchise. From 1 September 2026 they must be able to receive electronic invoices; their issuing obligation starts on 1 September 2027.
Is there a free public platform?
Not any more. The PPF stopped exchanging invoices in October 2024 and refocused on the directory and data collection. You must go through an accredited platform; some charge per invoice, others come with your management software, such as Odoo, where e-invoicing is free and unlimited.
Will a PDF invoice sent by email remain valid?
Between French VAT-registered businesses, no: invoices will have to travel through accredited platforms in a structured format (Factur-X, UBL 2.1 or CII), following the 2026-2027 timetable. The emailed PDF is being phased out of domestic B2B.
What should a Grand Est SME invoicing Luxembourg clients do?
Those sales count as international under the French reform: they fall under e-reporting, not e-invoicing. On the Luxembourg side, no B2B obligation exists to date; do not transpose the French timetable to the Grand Duchy.
Why Advena?
- A foot on each side of the border: we support businesses in Luxembourg and in the Grand Est, and we know both e-invoicing regimes.
- A turnkey compliance package from 349 €: flow audit, directory registration, configuration and training, with no hourly billing.
- Odoo, an accredited platform at no extra cost: e-invoicing there is free and unlimited, with no third-party subscription and no per-invoice fee.
- Finance and digital under one roof: compliance is wired into your accounting, not handled in a silo.
Read next: E-invoicing in Luxembourg: obligations, Peppol and Odoo · Odoo invoice OCR: ending manual entry
Want to be compliant before 1 September 2026, without losing your evenings to it? Our compliance package starts at 349 €.
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