KSeF: Poland’s National e-Invoicing System – Key Dates, Benefits, and Implementation Guide

• The National e-Invoicing System (KSeF) will become mandatory in Poland: from February 2026 for large enterprises, and from April 2026 for all other entrepreneurs.
• KSeF is a government platform for issuing, receiving, and storing electronic invoices, assigning each a unique ID and ensuring authenticity.
• The system automates invoice verification, reduces errors, and stores invoices for 10 years, improving efficiency and reducing storage costs.
• Not all documents are included in KSeF (e.g., pro forma invoices, receipts).
• Key benefits include faster document circulation, reduced VAT refund period, better cash flow control, and easier adaptation with accounting outsourcing.

Source: krgroup.eu

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.

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