As of June 2026: B2G e-invoicing has been mandatory since 2015 (via UJP, e-SLOG over Peppol). Mandatory B2B e-invoicing is planned for January 2027 (postponed from June 2026), with paper invoices ending for B2B from January 2028. Confirm current timelines with UJP / the Ministry of Finance.
Slovenia was an early adopter: B2G e-invoicing has been mandatory since 2015, with invoices to the public sector submitted through the UJP portal in the national e-SLOG standard, now linked to the Peppol network. For B2B, mandatory e-invoicing has been postponed from 1 June 2026 to 1 January 2027, and paper invoices will no longer be accepted for B2B from 1 January 2028. The e-SLOG standard incorporates the national XML, UBL 2.1, and UN/CEFACT CII; interoperability is the default model, with exchange via Peppol or registered providers. Notably, a later draft removed the earlier direct-reporting obligation to the tax authority (FURS) — businesses exchange e-invoices through providers, Peppol, or their own systems rather than clearing each invoice through the state.
Invotify Pro exports your invoices as UBL 2.1, CII, or Peppol BIS 3.0 — the EN 16931-aligned formats the Slovenian e-SLOG standard and the Peppol network accept. Whether you supply the Slovenian public sector today or are getting ready for the 2027 B2B obligation, Invotify generates the structured file and you deliver it via a Peppol access point or registered provider. E-invoicing is a Pro feature.
B2G e-invoicing has been mandatory since 2015 — invoices to the public sector go through the UJP portal in the e-SLOG standard over Peppol. For B2B, mandatory e-invoicing is planned for 1 January 2027 (postponed from June 2026), and paper invoices will no longer be accepted for B2B from 1 January 2028. Confirm the current timeline with UJP or the Ministry of Finance.
e-SLOG is Slovenia's national e-invoice standard. It incorporates the national XML, UBL 2.1, and UN/CEFACT CII, and is linked to the Peppol network for exchange. Invotify Pro exports UBL 2.1, CII, and Peppol BIS 3.0 — the standards-based formats e-SLOG and Peppol accept, so your invoices align with both the B2G portal and the planned B2B rules.
A later draft of the Slovenian B2B legislation removed the earlier direct invoice-reporting obligation to the tax authority FURS. Under the current model, businesses exchange e-invoices through registered providers, the Peppol network, or their own systems — interoperability rather than central clearance. This may still evolve, so verify the latest rules with UJP / the Ministry of Finance.
Invotify Pro generates the structured e-invoice (UBL 2.1, CII, or Peppol BIS 3.0); you deliver it through a Peppol access point or a registered service provider — for the public sector, via the UJP portal. Slovenia uses an interoperability model, so there is no single state platform every invoice must clear. E-invoicing export is a Pro feature.
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