Definition
The invoice is the accounting and tax document that records the service performed and triggers payment of the balance. It carries the mandatory particulars of the Commercial Code and the tax code: sequential number, date, identity and SIREN of the parties, VAT number, description of the display, price before tax, VAT rate and amount, due date, late-payment penalties and the 40-euro indemnity. For local authorities it must go through the Chorus Pro platform since 2020. The e-invoicing reform changes the scale: from 1 September 2026 every French business must be able to receive structured electronic invoices (Factur-X, UBL, CII) through an accredited platform, and large and mid-sized companies must issue them; SMEs, very small businesses and micro-enterprises follow on 1 September 2027. Elsewhere, Italy has required the SDI since 2019 and Belgium B2B invoicing through Peppol since 1 January 2026.
In practice, for the display company
Invoicing a town goes through Chorus Pro, a company soon through an accredited platform, a private individual by PDF: three channels for the same service. PyroDesk issues the invoice from the job file in Factur-X format, files it on the accredited platform linked to the company's account, tracks its status and reconciles the receipt with the bank.