E-invoicing Slovenia: Everything you need to know

Understand how electronic invoicing works in Slovenia for B2G, B2B, and B2C transactions.

Important dates

June 30, 2026

Expected publication of final technical specs for B2B e-invoicing. Subject to updates.

Jan. 1, 2027 (confirmed)

Mandatory B2B e-invoicing begins. All businesses in the PRS register must issue and receive structured e-invoices.

Legislation

  • Mandatory B2G invoicing

E-invoicing is mandatory for all public sector transactions since 2015. Invoices must be sent via the UJP portal.

  • Accepted formats:

Invoices must follow e-SLOG 2.0 or EN 16931-compliant formats, including Peppol BIS 3.0.

  • Delivery channels

Small suppliers (under 60 B2G invoices/year) may use the UJP portal. Others must use certified providers like B2Brouter.

  • Regulating authority

The Financial Administration of the Republic of Slovenia (FURS) oversees invoicing and compliance.

  • Archiving requirements:

E-invoices must be archived electronically for at least 10 years and remain accessible and readable. B2Brouter meets this legal requirement.

  • VAT e-reporting

As of July 2025, invoice data must be reported electronically through the e-Davki portal.

B2B mandate in 2027

Structured e-invoicing will be mandatory for all B2B transactions starting January 1, 2027.

Penalties

Fines range from €100 to €3,000 for issues like failing to archive properly or rejecting valid formats.

Voluntary B2C invoicing

B2C e-invoicing is optional and allowed only with the consumer’s prior consent.

Send e-invoices to Slovenia securely with B2Brouter

Certified and fully compliant

B2Brouter is a certified Peppol Access Point and complies with Slovenian e-invoicing rules and EU standards.

Seamless ERP integration

Connect your accounting or ERP system easily to B2Brouter to automate invoice creation and delivery without changing your tools.

Cross-border invoicing made simple

Use a single platform to manage e-invoicing across Slovenia and other compliant EU countries.

Certifications

B2Brouter is certified with the ISO 27001 standard on information security management, certified as a Peppol Access Point Service Provider and a member of the EESPA.