Dew-X is ready to cooperate with KSeF on the target version of this solution!
This solution is based on the FA(3) scheme.
The FA(3) schema will become the mandatory structured invoice schema in the KSeF production environment from February 1, 2026.
FA (3) entry date
- Currently, the FA(2) scheme is used in KSeF production, which is to be used until January 31, 2026.
- From February 1, 2026, the only valid structured invoice template will be the FA(3) logical structure, linked to KSeF 2.0.
What is KSeF?
The National e-Invoice System (KSeF) is an ICT system used for:
- issuing, sending, receiving, accessing, and storing structured invoices
and
- Granting or revoking rights to use KSeF.
To start using KSeF, you must authenticate yourself in the system. Authentication can be performed by the entrepreneur or a person or entity designated by the entrepreneur. The implementing regulations specify the possible methods of authentication in the system (e.g., using a Trusted Signature, a qualified signature, or a qualified seal).
Who will use KSeF?
- taxpayer, e.g., sole proprietorship, company, VAT group, or local government entity,
- entities indicated by the taxpayer, e.g., an accounting office,
- entities referred to in Article 106c of the Goods and Services Tax Act, i.e. enforcement authorities, court bailiffs,
- natural persons indicated by entities referred to in Article 106c of the Goods and Services Tax Act,
- natural persons indicated in the ZAW-FA notification, who have been granted access to this system by the taxpayer or enforcement authority,
- entities other than those mentioned above, indicated by natural persons using KSeF, if the right to indicate another entity results from the powers granted to those natural persons – authenticated in the manner specified in the implementing provisions.
Mandatory KSeF implementation date
The obligation to issue invoices in KSeF will apply from:
- February 1, 2026, for entrepreneurs whose sales value (including tax) exceeded PLN 200 million in 2024,
- April 1, 2026, for other businesses.
More information about KSeF (only in Polish)
The integration of Dew-X with KSeF for cost invoices is available in every version of the software, both Pro Bono and PRO business.
Once you have been authenticated in the system, we will automatically receive your cost invoices, and your employees will be able to initiate any business processes based on them.
If you would like to learn more, please contact us.
