The Ministry of Finance announced planned amendments to the KSeF (National e-Invoice System) regulation on 28 October 2026. While technical in nature, the changes extend token validity periods and revise payment annotation requirements, easing integration for businesses and accounting software providers.
Key Takeaways
- Token Extension: Authentication tokens will remain valid for 24 months (up from 12), reducing re-authentication frequency.
- Payment Marking: New structured fields for payment method, date, and reference number improve reconciliation automation.
- Implementation Timeline: Changes take effect 1 January 2027; software vendors must update APIs by November 2026.
Disclaimer: This article is compiled and summarized by the AI based on publicly available information and is for general information purposes only. It does not constitute any form of formal tax advice, legal opinion, or basis for performance. Please consult a qualified professional tax advisor or legal counsel for tax advice.
Source: Read Official Announcement