The Ministry of Finance has released an updated version of the API of the National e-Invoice System (KSeF) – a test environment that supports the logical structures of FA(1) and FA(2) e-invoices, the ministry announced on Tuesday. The aim is to test the new solution by entities involved in the development of invoicing software. The tests enable the adaptation of IT systems to the implementation of the KSeF.
Source Prawo.pl
See also KSeF API for test environment adapted to FA(1) and FA(2) structures
- Join the Linkedin Group on Global E-Invoicing/E-Reporting/SAF-T Developments, click HERE
- Join the LinkedIn Group on ”VAT in the Digital Age” (VIDA), click HERE
Latest Posts in "Poland"
- Tax Guidance Allows VAT Exemption Correction for Defense Deliveries Delayed by SAFE Certificate
- KSeF Phase Two: System Stable, But Companies Face Integration and Invoice Duplication Issues
- VAT still reigns supreme in the Supreme Administrative Court, the role of tax advisors is growing
- Mandatory Cash Registers for Parking Services from April 2026: New Regulations and Exemptions
- Reduced VAT Rate on Fuels: 8% Instead of 23% from March 31 to April 30, 2026














