Christmas greetings from
the Invoice Portal 2026
The Invoice Portal team would like to sincerely thank you for the trustful cooperation over the past year. Your confidence in us and your long-standing partnership are of great importance to us.



UK Mandatory E‑Invoicing from April 2029: What Companies Need to Know
/in eInvoice NewsThe United Kingdom has confirmed mandatory e‑invoicing for VAT‑registered businesses from 1 April 2029 — a landmark reform modernising tax and payment infrastructure.
Slovakia Moves Toward Mandatory E-Invoicing: Latest Updates and Timeline for 2026
/in eInvoice NewsFrom 1 January 2027, Slovakia will require structured e-invoicing and digital reporting for domestic B2B and B2G transactions under Law No. 385/2025.
E‑Invoicing & ERP Integration: Why APIs Are Critical for Modern Businesses
/in eInvoice NewsIn this article we explain what ERP‑e‑invoicing integration means, how APIs make it scalable, why your business needs an API‑first approach, and how our solution helps integrate with multiple platforms seamlessly.
Germany: preparing for the B2B e‑invoice mandate
/in eInvoice NewsGermany is rolling out one of the most significant VAT digitalisation reforms in the EU. With the Growth Opportunities Act, the BMF has redefined what counts as an electronic invoice and set a transition period that ends in 2028.
XRechnung 4.0 — Germany’s New Electronic Invoice Standard and Peppol
/in eInvoice NewsXRechnung is the German CIUS of EN 16931, mandatory for B2G suppliers since 2017 and increasingly used in the private sector. In March 2026 KoSIT announced version 4.0 — based on EN 16931-1:2026 and a key building block of the upcoming B2B mandate and ViDA.
Peppol Day Finland 2026: From E-Invoicing to a Global Digital Language
/in eInvoice NewsPeppol is rapidly evolving beyond e-invoicing into a global standard for digital business communication. Key takeaways from Peppol Day Finland 2026.