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E-invoicing, digital confirmation procedures and verification duties in payments: what the tax authorities require technically, and from when it applies.
From 2027, companies with more than 800,000 euros in prior-year turnover must issue e-invoices in Germany. The stages, the formats, and the cases that hold up the changeover in practice.
E-invoicing has been mandatory in German B2B since 2025. What EN 16931 actually requires, which transitional periods run to 2028, and why the XML file decides the input VAT deduction.
Since October 2025 banks check on every SEPA transfer whether the payee's name matches the IBAN. What the traffic light principle means, where master data typically fails, and how companies avoid payment delays.
Since 20 July 2025 the Bundeszentralamt für Steuern accepts requests to confirm foreign VAT identification numbers by digital means only. Written and telephone requests no longer have any effect.
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