e-invoicing for ecommerce and marketplace sellers — compliance guide

Summary

• Avalara’s 27 July 2026 guide maps how France’s B2B e-invoicing and e-reporting mandate—arriving 1 September 2026—affects online and marketplace sellers. The hard questions turn on who is the legal seller of record, which entity holds French VAT registrations, where inventory sits, and which party contracts with the customer. Crucially, a marketplace collecting VAT on a seller’s behalf does not automatically eliminate that seller’s own e-reporting obligations. [avalara.com]
• From September 2026, every affected business must be able to receive e-invoices, including marketplace commission invoices, third-party logistics (3PL) bills and technology-supplier invoices—so even small sellers cannot defer the whole project to 2027. B2C orders don’t require B2B e-invoices but are not exempt: transaction e-reporting covers consumer sales, refunds and payment data. Holding stock in a French warehouse can create domestic obligations even for foreign sellers, adding complexity to cross-border ecommerce models. [avalara.com], [cleartax.com]
• A compliant e-invoice is machine-readable structured data in UBL, CII or Factur-X, routed through a state-registered approved platform (plateforme agréée), with buyer identification, validation and lifecycle status updates. The phased rollout requires large enterprises and ETIs to issue from September 2026, and SMEs/micro-enterprises from September 2027. Avalara advises fixing checkout first—capturing business status, VAT numbers and ship-from data before payment—to prevent misclassifications no downstream platform can correct. [avalara.com], [avalara.com]

• Avalara – ecommerce guide
• Avalara – 2026 readiness guide
• ClearTax – France FAQs