- Croatia’s Tax Administration is replacing the Fiskalcis application certificate on September 8, 2026 at 5:00 a.m.; the new public key will be available starting September 1, 2026.
- This change affects validation of Tax Administration responses in the fiscalization process, not taxpayers’ own signing certificates or receipt content/VAT/numbering rules.
- POS and fiscalization systems must update trust settings to accept the new certificate; otherwise they may fail to verify signed responses after the switch.
- Possible impacts include signature-validation errors, alerts, retries, or issues processing fiscalization responses and JIRs, depending on the system design.
Source: fiscal-requirements.com
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.
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