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

The purpose of this document is to explain rules regarding the treatment of EV-chargers for electric vehicles in Slovakia in relation to fiscalization. We will explain whether they are subjects of fiscalization or not and whether there are some special rules and regulations or some special rules. Read more

From January 1, 2027, all VAT payers in Slovakia must use structured XML eInvoices for B2B and B2G transactions, sent through certified providers. The transition starts early 2026, with mandatory compliance and EU harmonization expected by July 2030. From January 1, 2027, electronic invoicing (e-Invoice) in a structured XML format will become mandatory for all VAT payers in Slovakia for business-t... Read more

The Slovakian Financial Administration found extensive violations in electronic cash register usage, especially in taxis, during inspections. From 1,600 checks, 487 violations resulted in €265,010 fines, prompting ongoing inspections and a targeted taxi campaign. The Slovakian Financial Administration has revealed widespread violations of the law on the use of electronic cash registers, following... Read more

Under Slovak law, entrepreneurs using e-kasa must notify the Financial Directorate before issuing their first VAT receipt if they become VAT payers due to exceeding turnover thresholds or voluntary registration. This ensures correct VAT details on receipts and applies primarily when transitioning from non-VAT to VAT payer status. Under Slovak legislation, entrepreneurs who use the e-kasa client sy... Read more

Slovakia’s Financial Administration, in collaboration with the Slovak University of Technology, has launched a new state-operated QR payment system that enables instant, secure smartphone payments without traditional card terminals. Following pilot phases in late 2025 and early 2026, offering a cashless payment option—via card, private, or state QR system—will become mandatory for purchases over €... Read more