France's e-invoicing mandate lands 1 September 2026. The developer's playbook.
The deadline nobody can opt out of On 1 September 2026, every business established in France that is subject to VAT — whether or not it actually cha…
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How to validate Peppol BIS 3 invoices in 5 lines of Python (or Node, or Go)
Starting September 2026 every B2B invoice in France must be e-invoiced (Peppol/Factur-X). Germany has mandated XRechnung for B2G since 2020. Italy h…