E-Invoicing in Slovenia
Slovenia adopted its B2B e-invoicing law (ZIERDED) in October 2025, effective January 1, 2028. The model is decentralized without real-time CTC reporting — exchange occurs via registered service providers, Peppol, or direct connections. B2G has been mandatory via the UJP platform since 2015.
Mandate Status
| Phase | Status | Scope |
|---|---|---|
| B2G | Live (Jan 2015) | All public sector suppliers |
| VAT e-reporting | Live (Jul 2025) | All VAT-registered businesses |
| B2B mandatory | Jan 2028 | All business entities (incl. cross-border) |
Technical Specifications
Implementation Notes
Slovenia's approach is notable for what it doesn't require: no CTC reporting, no clearance, no mandatory government portal for B2B.
No CTC (removed from final law). The draft law included real-time CTC reporting to FURS, but this was removed before adoption. The final ZIERDED law allows pure peer-to-peer exchange. This makes Slovenia closer to Belgium's Peppol model than Romania's clearance model. Your pipeline doesn't need to report to the government — but separate VAT e-reporting (mandatory since July 2025) still applies.
Format flexibility. The law accepts e-SLOG 2.0, UBL, Peppol BIS 3.0, and any EN 16931 compliant syntax agreed between parties. The recipient's service provider handles format conversion. This flexibility is good for integrators but means you may receive invoices in multiple formats from Slovenian counterparties.
Ship compliant Slovenia invoices
Validate, fix, and route Slovenia e-invoices through a single API. No XML editing required.
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