2026-01-13 ZEFIR2 - difficulties in submitting tax declarations and requests on January 15, 2026.

Published: 13.01.2026 09:30 (Warsaw time)

Updated: 16.01.2026 09:06 (Warsaw time)

The ZEFIR2 system will be unavailable on January 15, 2026, from 16:00 to 20:00, affecting the submission of various tax declarations and requests. Users are advised not to submit declarations for excise tax, gaming tax, and VAT during this time.

Unavailability starts on January 15, 2026, at 16:00.
Unavailability ends on January 15, 2026, at 20:00.
Impacted declarations include excise tax, gaming tax, and VAT-14.
Requests for PZAS (Potwierdzenia Zapłaty Akcyzy) will also be affected.
Updates on the unavailability will be provided as necessary.

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