Important Communications from the National Revenue Administration for Entrepreneurs

The National Revenue Administration (KAS) has issued important communications addressed to entrepreneurs regarding the mandatory keeping of accounting books, records, and statements for income tax purposes using computer programs.

These communications also include the requirement to submit data to the head of the tax office in a structured format.

Date of Issue and Details

The communication update took place on May 13, 2026, at 09:48 AM. The full content and additional information are available on the website of the Public Information Bulletin (BIP) of the Kujawsko-Pomorskie Chamber of Tax Administration in Bydgoszcz.

Where to Seek Assistance?

In case of questions or doubts, comprehensive information will be provided by employees of local tax offices. Additionally, entrepreneurs can use the nationwide KAS hotline at (22) 330 03 30. The aim of these actions is to support entrepreneurs in fulfilling new obligations.

Contact Information

The Communications Team of the Chamber of Tax Administration in Bydgoszcz is responsible for these announcements. Below are the contact details:

• Address: 85-056 Bydgoszcz
• Landline: +48 52 32 56 206
• Mobile: 785 060 036
• Fax: +48 52 32 29 960
• Email: [email protected]

Personal Data Protection

Information regarding the processing of personal data (in accordance with GDPR) is available on the website www.kujawsko-pomorskie.kas.gov.pl and at the units' premises. Contact for the Data Protection Officer: [email protected].