Mandatory E-Invoicing in Poland: Key Dates & How Invoice Portal Is Ready
Poland is moving forward with a major compliance change: mandatory electronic invoicing (e-invoicing) through the National e-Invoicing System (KSeF). This reform will transform how businesses issue and receive invoices.



Germany’s 2026 E-Invoicing Update: What the New BMF Letter Changes
/in eInvoice NewsThe BMF letter of 15 October 2026 says a business-rule error is still an e-invoice for VAT, writes the Kontrollfunktion into the UStAE, and extends two concessions to June 2030.
Luxembourg Plans Mandatory B2B E-Invoicing from 2028 — via Peppol
/in eInvoice NewsLuxembourg has proposed a phased B2B e-invoicing mandate starting in 2028. Bill 8815 would require businesses to receive and issue structured e-invoices through a common Peppol-based delivery network.
Greece Postpones Phase B of B2B E-Invoicing but 1 February 2027 Is the Date to Watch
/in eInvoice NewsGreece has moved Phase B of its B2B e-invoicing mandate to 2 November 2026. But the more important deadline comes on 1 February 2027, when direct ERP-to-myDATA transmission will no longer be permitted. Here is what businesses need to prepare for.
XRechnung 4.0: The Preview Is Out, and the Standard Underneath It Has Changed
/in eInvoice NewsKoSIT has released a preview of XRechnung 4.0 and EN 16931-1:2026 is ratified. 50+ new business terms, multiple orders per invoice — and parallel operation until March 2029.
How to Implement E-Invoicing Without Replacing Your ERP: A 5-Step Guide
/in eInvoice NewsThe most expensive misconception about e-invoicing is that it requires new accounting software. Discover the honest 5-step process to get compliant, from cleaning master data to choosing the right converter.
XRechnung, ZUGFeRD, Factur-X, Peppol BIS: Which One Do You Actually Need?
/in eInvoice NewsFour names, two questions. What is a format, what is a network, and how to work out in five minutes which combination your customer requires — with a free file check.
GEBA: Germany Finally Has a B2B E-Invoicing Address and It Is Coming to Peppol
/in eInvoice NewsThe German Electronic Business Address turns one this month and is being registered in the Peppol EAS code list. What GEBA is, how it differs from the Leitweg-ID, and how to build one.