2026-03-10 ZEFIR2 - difficulties in submitting tax declarations and applications on March 12, 2026.

Published: 10.03.2026 11:48 (Warsaw time)

Updated: 13.03.2026 13:31 (Warsaw time)

On March 12, 2026, all services of the ZEFIR2 system will be unavailable due to scheduled maintenance, affecting the submission of various tax declarations and requests. The downtime is expected to start at 19:00 and end at 23:00 on the same day.

Services affected include excise tax, gaming tax, and VAT-14.
Requests for PZAS (Potwierdzenia Zapłaty Akcyzy) will also be unavailable.
Updates on any changes to the downtime will be provided.

View original on PUESC

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