-
Mandatory E-Invoicing: Poland’s KSeF mandates structured XML e-invoicing for businesses by 2026–2027, with phased deadlines based on business size and sales volume to ensure smooth compliance.
-
Business Preparation: Companies must adopt FA(3) XML format, choose integration methods (API, ERP, or service providers), participate in 2025 testing, and train staff for seamless KSeF system adoption.
-
Transition Support: Temporary relief includes no penalties until end-2026, optional KSeF numbers on payments, and continued cash register invoicing, helping businesses adjust while avoiding early compliance risks.
Source: SNI
Latest Posts in "Poland"
- Open Days and Extended Hours for National e-Invoice System at Tax Offices in January 2026
- Polish Supreme Court: Illegality Alone Doesn’t Bar VAT Deduction, Landmark 2017 Ruling Clarifies
- KSeF Implementation: New VAT Reporting, Invoice Continuity, and KKS Compliance from February 2026
- SAC: VAT deductions for cultural institutions
- Entrepreneurs will be punished for not joining the KSeF in 2026













