2025-09-30 ZEFIR2 - difficulties in submitting tax declarations and requests on October 1, 2025.

Published: 30.09.2025 15:23 (Warsaw time)

Updated: 02.10.2025 10:31 (Warsaw time)

The ZEFIR2 system will be unavailable on October 1, 2025, from 16:00 to 22:00, affecting the submission of various tax declarations and requests. Users are advised not to send declarations for excise tax, gaming tax, and VAT during this downtime.

Unavailability starts: October 1, 2025, 16:00
Unavailability ends: October 1, 2025, 22:00
Affected declarations include excise, gaming, and VAT-14.
Requests for PZAS (Potwierdzenia Zapłaty Akcyzy) will also be impacted.
Updates will be provided if the downtime schedule changes.

View original on PUESC

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