KSeF – how to grant authorizations in the National e-Invoicing System?
ZAW-FA notification. What should you know?
Using the KSeF by entities other than natural persons requires granting permissions. This applies in particular to:
- capital companies,
- local government units,
- foundations and associations,
- cooperative,
that do not have a qualified electronic seal. Read more: Qualified electronic seal and KSeF – why will it be crucial from 2026?
Submitting a ZAW-FA notification is intended to grant authorization to issue and receive structured invoices in the system. This does not apply to sole proprietorships.
The Ministry of Finance reminds that until the end of January 2026, the current notification template is ZAW-FA version (2). The notification will be deemed effectively delivered if submitted electronically (e-Tax Office or e-delivery). How to use e-delivery? Check here: E-Delivery – electronic delivery service for your company
Who must submit the document?
This form is used to grant or revoke authorizations in the KSeF. It is necessary for entities that cannot authenticate in the system electronically (e.g., companies without a qualified seal).
Exceptions to the rule
The obligation to submit ZAW-FA does not apply to entities that have a qualified electronic seal.
It's worth remembering that lack of appropriate system permissions can paralyze document flow within a company immediately after the new regulations come into effect.
It's also important to remember that collecting purchase invoices from suppliers at the KSeF will soon be a major requirement, and this also applies to companies for which the KSeF becomes mandatory only from April 1st. Find out how to prepare your company for the changes: KSeF - receiving purchase invoices in Poland
From February 1, 2026, granting authorizations in KSeF 2.0
On February 1, 2026, KSeF 1.0 and the Certificates and Authorisations Module (MCU) will cease to function, and the only applicable system will be KSeF 2.0.
KSeF 2.0 is used to issue and receive structured invoices, but also to authenticate users, grant permissions, submit applications, receive certificates and generate tokens .
Does your organization need support from KSeF? Find out how we can help:
