- What changed: The Serbian Tax Administration announced on 24 July 2026 that the release of SEF (Electronic Invoicing System) version 4.0.0 to the production environment will be slightly postponed from its previously scheduled date. [efaktura.gov.rs]
- Why it was delayed: Given the significant changes and new functionalities included in this version, users are being granted minimal additional time to adapt and make the necessary adjustments to their internal systems. [efaktura.gov.rs]
- What happens next: No replacement date has been set yet — the Tax Administration stated that information on the new availability date for SEF version 4.0.0 in production will be published in due course. [efaktura.gov.rs]
Source efaktura.gov.rs
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