- From February 1, 2026, the largest Polish VAT taxpayers must issue invoices via the National e-Invoice System (KSeF); all others from April 1, 2026.
- Until December 31, 2026, invoices outside KSeF are allowed if monthly sales on such invoices do not exceed 10,000 PLN (with VAT); exceeding this limit triggers mandatory KSeF use.
- All taxpayers must receive invoices through KSeF from February 1, 2026.
- The new regulation defines user rights, authentication methods, technical requirements, and rules for using KSeF, including new functionalities like attachments and offline invoicing.
- The regulation implements legal requirements from the VAT Act and details the structure and operation of KSeF 2.0.
Source: ksiegowosc.infor.pl
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.
Latest Posts in "Poland"
- Poland Limits KSeF E-Invoicing to Foreign Businesses With Fixed Establishments Involved in Transactions
- Poland Successfully Launches National E-Invoice System KSeF 2.0, Over 50,000 Invoices Submitted
- KSeF System Failure: Companies Stick to Traditional Invoicing Amid Technical Issues
- Transactions Exempt from Structured Invoicing in KSeF from February 2026: New Ministry Regulation List
- Avoiding Common Invoicing Mistakes in Poland: A Guide for Foreign Vendors
