Events

KSeF from April 2026: information for ELETOR customers

14 February 2026

Dear Sir or Madam,

We would like to inform you that, in accordance with the applicable law, from 1 April 2026 ELETOR Sp. z o.o. will be required to issue invoices exclusively in a structured format via the National e-Invoicing System (KSeF).

From that date, invoices will be considered issued and delivered when they are accepted by the KSeF system. Documents will be available to download in the KSeF 2.0 Taxpayer Application or through system integration on the recipient’s side.

Transition period

To ensure a smooth implementation of the new rules, we are introducing a transition period from 1 March 2026. During this period:

invoices will be issued in KSeF,
they will also be provided in the existing format (on paper or by email).

After 1 April 2026, the structured invoice available in KSeF will be the required and legally effective form of the document.

What do we recommend?

We recommend checking:

access to KSeF within your organisation,
the permissions granted to those responsible for accounting,
the integration of financial and accounting systems with the KSeF API.

Detailed information is available on the Ministry of Finance website:

? https://ksef.podatki.gov.pl/

If you have any questions about organising invoice circulation as part of our cooperation, we remain at your disposal.

Yours sincerely,

The Management Board of ELETOR Sp. z o.o.

#KSeF