On Ministry of Finance site, a free “e-Sprawozdania Finansowe” application for natural persons has been shared. The application allows to prepare financial statement, sign a file and send it to the head of KAS.
Currently, the application can be run only on computers with windows OS installed:
More information about the application, are available on a tax portal:
https://www.podatki.gov.pl/e-sprawozdania-finansowe/aplikacje-do-pobrania/
Translated by Stanisław Anioła