National e-Invoice System (KSeF) new integration libraries for JAVA and .NET We are very pleased to announce that we have made available two more client libraries for JAVA and .NET languages, which facilitate and accelerate the integration of systems with the National e-Invoice System. These are the next tools after the KSeF REST API interface and the PHP library that we make available Read more…
Part 1: The New Landscape of the National System for E-Invoices: A Strategic and Pragmatic Relaunch. The introduction of the National System for E-Invoices (KSeF) in Poland is undergoing a fundamental transformation. The initial vision of implementation, based on a "big-bang" model, has given way to a more flexible, phased, and consultative approach. This change is not merely a technical adjustment, but a strategic reset, forced by technological realities and dialogue. Read more…
The amendment to the VAT Act requires settlements using the National e-Invoice System. From February 1, 2026, the system will cover businesses in the country whose sales value of goods and services in the previous year exceeded PLN 200 million. As announced by the Ministry of Finance and in connection with the amendment to the legislation, Read more…
Business owners seeking new opportunities for expansion and increased revenue often decide to partner with foreign partners. However, when selling goods to customers outside of Poland, many questions arise regarding the correct settlement principles for such transactions. How do you properly account for VAT on foreign invoices? What obligations do these impose on companies? Read more…