---
title: "Slovenia — UJP B2G & Peppol BIS"
description: "Slovenia e-invoicing: UJP B2G platform universal since 2015, Peppol BIS for cross-border. B2B mandate consultation underway."
canonical: "https://docs.get-flowie.com/compliance/si"
source: "https://docs.get-flowie.com/compliance/si.html"
---

# Slovenia — UJP B2G & Peppol BIS

Compliance · 🇸🇮 Slovenia Live mandate

# Slovenia — UJP B2G & Peppol BIS

UJP B2G universal since 2015 · No B2B mandate yet — regulator: [Finančna uprava Republike Slovenije (FURS)](<https://www.fu.gov.si>). _Facts last refreshed: 2026-07-13._

Coverage model

Flowie operates a registered Peppol Access Point in this jurisdiction **directly** where we hold national accreditation, **or via a vetted local partner** registered with the in-country regulator where on-the-ground presence is required (KSeF, SDI intermediario, ZATCA service-provider, etc.). Either way, you call the same `POST /v1/documents/send`. 

## TL;DR

  * **UJP** (Uprava Republike Slovenije za javna plačila) is Slovenia's central B2G hub — mandatory since 2015.
  * **No B2B mandate** ; FURS consultation underway with target 2027.
  * Format: **e-SLOG 2.0** for legacy B2G; Peppol BIS 3.0 increasingly preferred.
  * Slovenia is also a launch user of the EU's ViDA pilot.



## Deadlines

Date| Who| What  
---|---|---  
2015-01-01| Public-sector contracting| UJP mandatory for all suppliers to public buyers.  
≥ 2027| B2B mandate (consultation)| FURS reviewing options.  
  
## Background

Slovenia's UJP is a payments-and-invoicing hub: public buyers pay through UJP and receive invoices through it. The platform pre-dates Peppol but now bridges to it; Flowie's AP routes to UJP automatically when the recipient is registered.

## Format profile

  * **e-SLOG 2.0** for legacy UJP routes.
  * **Peppol BIS 3.0** for new B2G and cross-border.
  * Slovenian VAT: `SI` \+ 8 digits.



## Required fields

  * seller.vatNumberstringrequired

Format `SI12345678`.




## Public sector (B2G)

Hub| Peppol identifier scheme| Lookup  
---|---|---  
**UJP**| `9929:SI-<mat>`| <https://www.ujp.gov.si>  
  
Slovenian public buyers identified by Matična številka (MAT) via Peppol scheme `9929`.

## B2B reporting / clearance

_No central B2B reporting hub — pure transmission only._

## Error codes

_Generic Peppol BIS schematron error codes apply (`BR-*`, `EN16931-*`); no country-specific overlays._

## Testing in sandbox

Generic sandbox patterns apply — see [Sandbox guide](<../sandbox/index.html>).

## FAQ

_Open questions? Email[compliance@flowie.fr](<mailto:compliance@flowie.fr>) — we answer within 24h._

## References

**Primary sources** (government / regulator / standards body):

  * [EU Commission · eInvoicing in Slovenia](<https://ec.europa.eu/digital-building-blocks/sites/spaces/DIGITAL/pages/467108900/eInvoicing+in+Slovenia>) — Pan-EU reference factsheet.
  * [UJP · Public Payments Administration](<https://www.gov.si/en/state-authorities/bodies-within-ministries/public-payments-administration/>) — B2G central e-invoicing entry point.
  * [UJP eRačun portal](<https://eracuni.ujp.gov.si/>) — Free SME e-invoice portal.
  * [FURS · Financial Administration of Slovenia](<https://www.fu.gov.si/en/>) — Tax authority — VAT compliance.



**Industry analyses** (vendor trackers — useful for cross-referencing):

  * [ddd · Slovenia B2B e-invoicing](<https://dddinvoices.com/learn/e-invoicing-slovenia>) — Industry tracker — 2027 B2B draft bill.