2026-01-27 ZEFIR2 - difficulties in submitting tax declarations and applications on January 29, 2026.

Published: 27.01.2026 09:35 (Warsaw time)

Updated: 28.01.2026 13:22 (Warsaw time)

Due to scheduled maintenance, all services of the ZEFIR2 system will be unavailable for tax declaration submissions on January 29, 2026. This includes various tax types and requests related to excise duties.

Unavailability starts on January 29, 2026, at 16:00.
Expected end of unavailability is January 29, 2026, at 20:00.
Services affected include excise tax, gaming tax, and VAT-14.
Updates will be provided regarding any changes in the downtime schedule.

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