S4F backoffice patch is intended for users who have already installed S4F backoffice and are intended to update existing installations to latest version. To do so apply only patches that are marked with version number that is newer than your currently installed instance of backoffice. Please make sure to install all available patches sequentially (without skipping). This package contains instruction, release notes, changelog and software packages required for deployment of this software component. Read more

On May 15th, 2025, Fiscal Solutions organized a free webinar on the topic of "Fiscalization and online sales in European countries". The webinar was held by Fiscal Solutions Legal Consultant Nikolina Basić. Let’s find out more about answers to questions asked during the webinar. Read more

ELSTER (ELektronische STeuerERklärung = electronic tax declaration) is a German online tax office system designed by the Federal Central Tax Office (Bundeszentralamt für Steuern) to enable anyone to submit their tax returns online. The objective of ELSTER integration is to automate the compulsory ERS registration process overseen by tax offices. If you want to learn more about this topic, please read the entire document. Read more

The registration obligation in Germany is called „The notification obligation“, and it has been established under § 146a Absatz 4 of the German Fiscal Code (Abgabenordnung - AO). It mandates businesses using electronic recording systems (POS) to notify tax authorities about using and decommissioning such systems. In this document, you’ll learn more about when was this obligation introduced. What data are needed for notification obligation and much more. Read more

This document interprets the regulation about mandatory electronic invoicing and describes the implementation of the e-invoice system in Germany. Read more

This document contains an overview of the presence of fiscalization and its types in all European countries. Read more