POLAND-KSEF

The Polish national electronic invoicing system — mandatory postponed to 2026.

Definition

Central platform operated by Ministry of Finance. FA-VAT XML format based on logical scheme FA(1) then FA(2). Workflow: sender → KSeF → unique numbering (identyfikator KSeF) → recipient notification. Mandatory initially set for 1 July 2024 postponed to 1 February 2026 for large companies.

Origin

Regulated by amended Ustawa o VAT. Postponed in March 2024 after companies flagged technical difficulties.

Example in context

A Polish company sending an FA-VAT XML to KSeF, receiving a unique identifier within 5 seconds.

Related terms

• PEPPOL BIS 3 — neighbouring European standard.