2026-04-28 ZEFIR2 - difficulties in submitting tax declarations and applications on April 29, 2026.

Published: 28.04.2026 15:53 (Warsaw time)

Updated: 30.04.2026 10:47 (Warsaw time)

Due to scheduled maintenance, all services of the ZEFIR2 system will be unavailable for submitting tax declarations and requests on April 29, 2026. This includes various taxes and requests related to excise duties.

Unavailability starts on April 29, 2026, at 19:00.
Expected end of unavailability is April 29, 2026, at 23:00.
Services affected include excise tax, gaming tax, VAT-14, and emission and fuel fees.
Updates will be provided if there are changes to the expected downtime.

View original on PUESC

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