Starting July 1, 2030, the EU will eliminate the Intra models for VAT reporting, replacing them with mandatory electronic invoicing under Directive 516/2025. The new system, part of the VIDA 2030 Package, will require businesses to issue standardized e-invoices for all intra-EU B2B transactions, with data transmitted to VIES for cross-border VAT monitoring and fraud prevention. This shift aims to... Read more

The Digital Services Act (DSA) is an EU regulation designed to ensure safer and more transparent online environments by imposing new responsibilities on digital service providers, including those outside the EU. It applies to a broad range of online platforms, with stricter obligations for very large platforms, but also key requirements for medium-sized businesses, such as EU representation, transparency, and content moderation reporting. Read more

Due to a major electricity outage on April 28 that disrupted tax portals and invoice systems, the Portuguese tax authorities have extended the SAF-T file submission deadline for April 2025 to May 7, 2025. No penalties will apply for submissions made by this new deadline, as system recovery efforts are still ongoing.   Portuguese tax authorities have announced an extension for the submission... Read more

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. Read more

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. Read more

A new EU Trust List format, TLv6, will officially replace TLv5 in May 2025 as part of the updated eIDAS Regulation (EU 2024/1183). It introduces key technical changes like a new URI field, updated signature format, and optional phone number support. Organizations must update their systems to avoid signature validation failures and service disruptions, as TLv5 will no longer be valid once TLv6 take... Read more

The Portuguese Tax and Customs Authority announced that a new Certification Authority will go live on May 31, 2025, requiring Software Producers and Economic Operators to use 4096-bit RSA certificates for accessing AT web services. Read more