POLAND-KSEF-V2

Polish national KSeF 2.0 eInvoice.

Definition

KSeF 2.0 uses XSD FA(2) v1.4 schema (October 2023) mandated by Ministerstwo Finansów. Submission via REST API signed by qualified certificate. KSeF Number returned. Mandatory B2B postponed to 1 February 2026 (large taxpayers) and 1 April 2026 (others).

Origin

KSeF v1 launched voluntary 1 January 2022 ; v2 FA(2) schema 2023 ; mandatory 2026.

Example in context

A Polish SpZoo submits an FA(2) to KSeF — KSeF Number signed JSON received in 5 seconds.

Related terms

• KSeF detail — parent concept.