Your French clients are asking questions, and the answer is not the obvious one
Since 1 September 2026, France operates a mandatory electronic invoicing regime. If you sell to France, your clients have almost certainly written to you about it already, often asking you to register on a platform or to change your invoice format.
Here is the part most of those emails get wrong. French e-invoicing does not apply to a Swiss company that has no permanent establishment in France for VAT purposes. What can apply to you is a different obligation, e-reporting, with its own calendar and its own triggers. Confusing the two costs money in either direction: you either buy a service you do not need, or you miss a filing you do owe.
This article separates the two clearly, so you know what your Swiss company must do and what it can safely ignore.
What actually changed in France on 1 September 2026
The reform is built on one invoicing mechanism and two data transmission mechanisms.
The first is e-invoicing: invoices between businesses established in France must travel through a state-approved platform, called a plateforme agreee, in a structured electronic format. A scanned invoice or an ordinary PDF sent by email no longer counts as compliant.
The second is e-reporting of transaction data: transmitting details of operations that fall outside the e-invoicing perimeter to the French tax administration.
The third is e-reporting of payment data, which applies where VAT becomes due on collection, typically for services without the option for VAT on debits and outside reverse charge situations.
The rollout is staged:
- Since 1 September 2026, every business subject to VAT and established in France must be able to receive electronic invoices, whatever its size. Foreign businesses not established in France for VAT purposes are not subject to this reception obligation.
- Since the same date, large enterprises and mid-cap companies (ETI) must issue electronic invoices and transmit their e-reporting data.
- From 1 September 2027, small and micro businesses must issue electronically in turn.
The French Ministry has announced that penalties will not be applied during the start-up phase to businesses facing genuine, documented difficulties and engaged in a serious compliance path. The administration states expressly that this is neither a postponement nor a suspension of the obligation itself.
Does French e-invoicing apply to a Swiss company?
In the large majority of cases, no. Article 289 bis of the French General Tax Code limits e-invoicing to purchases and sales of goods and services carried out in France between taxable persons established in France.
The French tax administration states the consequence in plain terms: the e-invoicing part of the reform, both receiving and issuing, does not concern foreign businesses without a permanent establishment in France for VAT purposes.
Note the wording carefully. The test is establishment for VAT purposes, not registration. A Swiss company that holds a French VAT number but has no permanent establishment there is not established in France, and stays outside e-invoicing.
The reverse case deserves the same caution. A branch, an office or a workshop in France is an indicator, not an automatic answer. What matters is whether the French presence has sufficient human and technical resources, and whether those resources take part in the operations concerned. A commercial address, a travelling employee or a third-party warehouse does not by itself create a VAT establishment. This is a question of fact, and it is the single point worth having reviewed before you conclude anything.
The obligation that can actually reach you: e-reporting
E-reporting is the part Swiss management teams miss. A foreign business not established in France still owes transaction data, and sometimes payment data, when it carries out operations deemed located in France for which it is itself liable for French VAT.
The calendar for foreign businesses without a permanent establishment is more generous than the domestic one:
- 1 September 2026 for large enterprises and mid-cap companies acting as seller or service provider.
- 1 September 2027 for micro, very small and small or medium-sized businesses acting as seller or service provider.
- 1 September 2027 for businesses acting as buyer liable for the VAT, under reverse charge or intra-EU acquisition, whatever their size.
Smaller businesses may choose to start e-reporting voluntarily from 1 September 2026 rather than wait.
Two details decide which line applies to you. Size is assessed as at 1 January 2025, on the basis of the last financial year closed before that date, and the turnover to consider is your worldwide turnover, not just your French revenue. A business counts as an SME below 250 employees with turnover up to EUR 50 million or a balance sheet total up to EUR 43 million.
For nearly every Swiss SME and liberal profession, that means the relevant date is 1 September 2027, not 2026. You have time, but you have a deadline.
The common case: your French client handles it, not you
Here is the rule that removes the obligation for many Swiss service providers. Where an operation is located in France and falls under the reverse charge rule, a foreign business not established in France is not liable for the French VAT when its client is a business identified for VAT in France. The VAT is reverse-charged, and the French buyer carries the e-reporting obligation.
So a Geneva consultancy invoicing a French company with a valid French VAT number has, on that operation, nothing to file. The French client does the reporting.
Two further exclusions matter. Operations exempt from VAT, including exports and intra-EU supplies, are excluded from e-reporting altogether. So are imports of goods.
One warning before you generalise. Being Swiss, holding or not holding a French VAT number, or invoicing a business customer is not enough on its own to settle the question. You need to check where the operation is located for VAT, the status and place of establishment of the client, whether you have a VAT establishment in France, and who is legally liable for the VAT. E-reporting targets foreign businesses not established in France when they carry out, or receive as customer, operations located in France for which they are liable for French VAT. That is an analysis per type of operation, not a company-wide verdict.
Three situations where your Swiss company must act
Work through these three, and you will know where to look.
- You sell to French consumers. Sales and services to non-taxable persons subject to French VAT fall under transaction e-reporting, unless you are registered with the EU OSS, the non-EU OSS or the IOSS, as applicable. This catches Swiss e-commerce and B2C services.
- You carry out an operation located in France for which you are liable for the VAT. Depending on the territoriality rules, this covers certain supplies of goods and certain services referred to in article 259 A of the French General Tax Code where the customer has no French VAT identification number. The qualification depends on the precise nature of the supply, so it has to be assessed operation by operation.
- You have a permanent establishment in France for VAT purposes. You then fall within the obligations applicable to established businesses, with a platform to appoint and four new mandatory invoice mentions: the client SIREN number, the category of the operation (supply of goods, service, or both), the option for VAT on debits where it applies, and the full delivery address of the goods including the country, where it differs from the client's address.
The platform requirement works differently in each case. A foreign business not established in France but subject to e-reporting must appoint a plateforme agreee before its own entry date, 1 September 2026 or 1 September 2027. A business treated as established in France had to be able to receive electronic invoices from 1 September 2026, and its issuing obligation then depends on its size category. The list of approved platforms is published and updated by the French tax administration.
What to do in your ERP, even if you are out of scope
Being outside the French obligation does not make the reform irrelevant to your systems. Your French clients now run on structured invoice data. French law imposes nothing on you as their Swiss supplier, but expect a commercial shift: accounts payable teams built around structured data tend to push suppliers towards formats they can match automatically.
Three practical moves pay off regardless of your legal position:
- Clean your customer master data. Record the French VAT number and SIREN of every French client, and check them. Your VAT treatment depends on that number being present and valid.
- Check that your ERP can produce the structured data required and connect, directly or through a connector, to an approved platform if you fall within the French perimeter. In Odoo, what this takes depends on your version, your accounting modules, the connector chosen and your VAT configuration, so it is worth scoping your Odoo setup before you commit to a date.
- Keep a clear split in your chart of accounts between operations carrying French VAT and reverse-charged operations. If an e-reporting obligation reaches you in 2027, that split is what makes the filing a routine export rather than a reconstruction exercise.
Swiss payment traffic went through the same shift. The Swiss Payment Commission set 14 November 2026 as the end of the parallel phase for the 2009 version of ISO 20022, after which pain.001.001.03 files are refused and only the 2019 version is accepted. Our guide to the Swiss ISO 20022 deadline covers that transition in detail. The direction of travel is identical on both sides of the border: structured, machine-readable data exchanged through a network rather than by email.
Frequently asked questions
My French client asks me to register on their platform. Do I have to?
Not as a legal matter, if you have no permanent establishment in France for VAT purposes and no e-reporting obligation. It may still be commercially sensible: some large French buyers make platform onboarding a condition of doing business. Treat it as a commercial decision, not a compliance one, and do not pay for a service on the assumption that French law requires it of you.
I have a French VAT number. Does that put me in scope for e-invoicing?
No. VAT registration alone does not make you established in France. You stay outside e-invoicing, though e-reporting may apply to the operations for which you are liable for French VAT.
What happens if I do nothing and an obligation did apply?
Failure to meet the e-reporting obligations is penalised under article 1788 D of the French General Tax Code, with a fixed amount per missing transmission and an annual cap. During the start-up phase the administration has announced a proportionate approach for businesses facing genuine, documented difficulties. Beyond penalties, mismatches between your VAT position, your transaction data and your clients' own filings are what tend to attract questions, so the cost of checking your position once stays far below the cost of unwinding several years of it.
This article summarises French rules as published by the French tax administration at the date of writing and does not constitute tax advice. Your position depends on your contracts, your VAT status and whether you have a permanent establishment in France for VAT purposes. Have it reviewed before you act.
Check your position once, properly
Running your client list against those tests is a short exercise for a fiduciary that works on both the accounting and the Odoo systems side of the question. It is the kind of work we do regularly for Geneva SMEs trading into the EU. Book a first free, no-obligation consultation