Slovenia mandates electronic invoicing for B2B transactions starting January 2028, encouraging businesses to prepare through pilot projects and process alignment. The decentralized model, requiring structured XML formats, aims to streamline operations, enhance VAT compliance, and reduce manual workload.
Slovenia Sets 2028 Deadline for Mandatory B2B e-Invoicing
Public
Slovenia
Author: Vukašin Santo
Category:
General information
Views:
351
Content accuracy validation date:
17.11.2025
Content accuracy validation time:
08:20h
Slovenia is preparing for a major digital transformation in business transactions, announcing that electronic invoicing between businesses (B2B) will become mandatory starting January 2028.
While B2G (business-to-government) e-invoicing has been in place for several years, the upcoming expansion to the B2B sector marks the next phase in modernizing the country’s invoicing system. Authorities are encouraging companies to use the time before the go-live date to run pilot projects, align internal processes, and formalize contracts with service providers.
The new requirement will apply to domestic B2B invoices issued and received by businesses established in Slovenia. Importantly, these e-invoices will not need to be reported directly to the tax authorities, as the focus remains on standardized, structured data exchange between trading partners.
Slovenia has chosen a decentralized model for invoice exchange. Companies will be able to transmit e-invoices through direct connections, via the PEPPOL network, or by using MiniBlagajna, a free government application designed for micro and small enterprises.
From a technical standpoint, all invoices must be issued in structured XML formats, including e-SLOG, the European EN 16931 standard, or other internationally accepted equivalents agreed upon by trading parties. These formats ensure automated validation, improved data accuracy, and secure transmission, replacing traditional paper and email-PDF workflows. Businesses will also be required to implement proper e-archiving to maintain the authenticity and readability of documents for the full statutory retention period.
Authorities emphasize that the move to structured e-invoicing will streamline operations, reduce manual workload, and enhance VAT compliance. By using the pre-2028 transition period for thorough preparation, companies can ensure a smooth switch-over and begin realizing efficiency gains from the very first day of implementation.
Other news from Slovenia
Slovenian Tax Authority Announces Shortened Office Hours on 24 and 31 December 2025
Public
Slovenia
Author: Vukašin Santo
Slovenia
Author: Vukašin Santo
The Financial Administration of the Republic of Slovenia (FURS) will operate on reduced hours from 8:00 a.m. to 1:00 p.m. on 24 and 31 December 2025, with limited contact-centre services, while taxpayers may use the 24/7 chatbot or email sd.fu@gov.si for technical issues outside office hours. The Financial Administration of the Republic of Slovenia (FURS) has announced that its office hours and pu... Read more
Slovenia: Dedicated Digital Certificate Mandatory for Fiscal Cash Registers and Receipt Validation
Public
Slovenia
Author: Vukašin Santo
Slovenia
Author: Vukašin Santo
Slovenia requires a dedicated digital certificate to operate fiscal cash registers and validate receipts under the Tax Confirmation of Receipts Act (ZDavPR), without which taxpayers cannot report receipt data to FURS. The certificate must be obtained via eDavki before starting cash operations and forms a core part of Slovenia’s real-time digital tax compliance system. Slovenian tax authori... Read more
Fiscalization Update in Slovenia v3.1: New Technical Documentation and Mass Business-Premise Registration Service Now Released
Public
Slovenia
Author: Vukašin Santo
Slovenia
Author: Vukašin Santo
A new technical documentation version 3.1 has been released, introducing updates to business-premise registration in the production environment and adding a new service for mass registrations. The updated developer instructions provide revised specifications and guidance to help stakeholders adapt their systems, further improving efficiency and integration within the fiscalization process A new ve... Read more
New document was uploaded: S4F backoffice installer
Author: Dejan Šijačić
S4F backoffice installer is intended for users who are installing the software for the first time. Please make sure to obtain latest version of installer and to apply all subsequent patches that are released subsequently. This package contains instruction, release notes, changelog and software packages required for deployment of this software component. This version of the Backoffice installer supports the following countries: Austria, Bulgaria, Croatia, France, Italy, Poland, Portugal, Romania, Slovakia and Slovenia. Read more
Subscribe to get access to the latest news, documents, webinars and educations.
Already subscriber? Login
Slovenia: Scheduled Maintenance on the eDavki System, November 8, 2025
Public
Slovenia
Author: Vukašin Santo
Slovenia
Author: Vukašin Santo
Urgent maintenance on the eDavki system will occur November 8, 2025, from 2:00 PM to 3:00 PM, possibly causing temporary disruptions. The Tax Administration has announced that urgent maintenance work on the eDavki system infrastructure will take place on Saturday, November 8, 2025, between 2:00 PM and 3:00 PM. Although no service interruption is expected, users may experience temporary disruption... Read more
Slovenia: FURS to Replace TLS Server Certificate in Fiscal Verification System on November 11, 2025
Public
Slovenia
Author: Vukašin Santo
Slovenia
Author: Vukašin Santo
The Financial Administration of the Republic of Slovenia (FURS) has announced that it will replace the digital server certificate used to establish the TLS connection for the fiscal verification system on November 11, 2025 The Financial Administration of the Republic of Slovenia (FURS) has announced that it will replace the digital server certificate used to establish the TLS connection for the fi... Read more