#xrechnung

The 1 August 2026 Peppol change was narrower than pre-cutover coverage suggested. Two hard cutovers remain — 17 August (BIS 3.0 May 2026 Release mandatory) and 31 August (SML DNS migration). Both are upstream of your local validator. Here's the days-until, the exact failure modes, and the reframe on what actually happened on 1 August.

The most common XRechnung validation errors, why they happen, and how to fix each one. Practical guidance for anyone sending e-invoices in Germany.

Every EN 16931 validation rule categorized, explained, and cross-referenced. The definitive technical reference for e-invoice developers.

ZUGFeRD and XRechnung are Germany's two e-invoice formats — but they solve different problems. This guide covers the XML structures, validation rules, profile mappings, and integration patterns ERP developers need to choose the right format.

Fix every BR-DE validation error in your XRechnung invoices. Covers BR-DE-1 through BR-DE-29 with XML examples, root causes, and tested solutions for XRechnung 3.0.

Reception has been mandatory since January 2025. The B2B sending mandate is roughly eight months away. Here's the current state, what changed in 2026, and what to do before January 2027.