National e-Invoice System starting now

Bartosz Taberski, SAP SRM, SAP Finance Consultant

11th October 2021
Legal news
2 min

Update: March 7, 2023.

After public consultations, the Ministry of Finance has unveiled a modified model for the National e-Invoicing System. The effective date of the legislation introducing the mandatory KSeF has been postponed from January 1st, 2024, to July 1st, 2024.

On Thursday, October 7 of this year, the Ministry of Finance posted on its website an invitation to IT companies to test the pilot program of the National e-Invoice System (KSeF). A specification for KSeF connectivity has also been published, and trial versions of IT tools have been made available to:

✓ use of self-generated signatures and authorization seals,
✓ transmission of invoices to the National System of e-Invoices using the provided API in batch or interactive mode,
✓ downloading the UPO with a list of invoices sent in a batch or interactive session.

No registration is required to participate in the pilot, and access to the trial version of the software has been provided via a publicly accessible website. Invoices sent during the tests have no legal consequences and will be removed from KSeF after some time.

In order to gather as many opinions as possible, the Ministry of Finance encourages testers to send comments or suggestions for possible modifications, because as from January 2022, Polish entrepreneurs will be able to officially use e-Invoices as one of the permitted forms of documenting sales, alongside traditional paper invoices. According to the recently adopted by the Parliament draft of amendments to the VAT Act in 2023, the use of e-invoice will become obligatory.