France switched on invoice reception on 1 September
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On 1 September 2026 France made reception of electronic invoices compulsory for every business in scope, whatever its size. Issuing is phased: large and mid-size companies from the same date, smaller ones from September 2027. For a buyer the invoice changes shape and channel, and the price on it changes not at all.
Price Double Check compares an invoice with the price list a buyer was given and answers by email, and that comparison is untouched by the change. What follows is the dated shape of the French reform as it stands this week, and the short list of things a buyer of French goods now has to know.
What the date actually carried
The legal basis is article 26 of the amending finance law of 16 August 2022, worked out since in a run of decrees and orders. It sets two obligations on different clocks, and the one that arrived last week is the broader of the two.
| From | Who | What they must do |
|---|---|---|
| 1 September 2026 | Every business in scope, any size | Be able to receive an electronic invoice |
| 1 September 2026 | Large and mid-size companies | Issue their invoices electronically |
| 1 September 2027 | Small and micro enterprises | Issue their invoices electronically |
Reception is the row that catches everyone. A one-person company in Perpignan that will not have to issue an electronic invoice until next September has, since last Tuesday, had to be able to take one in. That is why the tax administration's own start-up guide is written for the smallest end of the market rather than for finance departments.
The channel changed with it. An invoice in scope travels through an approved platform rather than as a file attached to a message, and the buyer chooses their platform independently of the supplier.
Three formats, one of which still looks like a page
The base set is three, all of them built on the European semantic model that Directive 2014/55/EU brought into being for public procurement and that the national mandates have since borrowed wholesale.
- Factur-X, a hybrid: an ordinary readable PDF with the structured XML attached inside it. A person opens it and sees an invoice; a machine opens it and reads fields.
- UBL, structured data only, meant to move between systems without anyone looking at it.
- CII, the same idea in a different syntax, common where a trading relationship already ran on EDI.
For a small buyer the hybrid is the one that matters, because it means the document you forward still carries a page a human can read alongside the fields a machine can trust. The wider direction of travel, and what it does to the attachment habit, is in the note on PDF invoices going away.
What a mandate does not check
A mandate governs form and route. It says an invoice must carry certain fields, conform to a syntax and arrive through a certified channel. Nothing in it looks at whether the unit price on line seven is the unit price you were quoted.
So a perfectly valid structured invoice can bill you 13.23 euros for an item your price list puts at 11.235 and pass every conformance rule on the way. That exact line sits in the validation set behind this service: 17.75 per cent over, 47.76 euros on one invoice, and enough on its own to take 91 per cent of the margin on that delivery. It was not a formatting error. It was a price, correctly transmitted.
The honest summary for a buyer is that the reform makes the document easier to read by machine and does nothing whatever about what the document says. If anything it raises the stakes, because a structured file arriving through a certified channel carries an air of having been checked by somebody, and it has not been. The comparison against your own price list is still yours to run, and the service that runs it has not changed either.
Forward one invoice and the price list it should have been billed on, in whatever shape your French supplier now sends it, and the reply names the lines that do not agree.