Fiscal subject related
Those are:
- Monthly SAF-T due by the 5th day of the month as of 2024 (the rule that was announced a month ago but is effective from 2024 until the 8th day of the year 2023 is allowed as a grace period) day of the month following the reporting period.
- From January 1, 2024, PDF invoices in Portugal must include a qualified electronic signature. The Portuguese government has made various adaptations to the fiscal calendar to facilitate compliance with the requirements announced by Decree Law No. 28/2019. which means that Form 2024 PDF invoices without electronic signatures will not be treated as valid.
Other news from Portugal
Slovenia: EU Targets Unsafe E-Commerce Imports with New Measures
The European Commission is tightening regulations on e-commerce imports to address the surge of unsafe and counterfeit goods, particularly from China, by reforming customs rules and increasing product safety checks. Key measures include removing the duty exemption for low-value parcels, introducing a potential customs fee, establishing priority control areas, and launching an EU-wide product safet... Read more
New document was uploaded: S4F backoffice patch
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
New document was uploaded: S4F backoffice installer
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
A security alert from the Portuguese Tax Administration

The Portuguese Tax and Customs Authority (AT) has issued a warning about fraudulent emails impersonating the agency, sent via WeTransfer, urging recipients to click on malicious links. Taxpayers are advised to ignore these messages, as they are designed to redirect users to harmful websites. The Tax and Customs Authority of Portugal (AT) published the notice regarding the fraudulent message that a... Read more
New document was uploaded: S4F backoffice patch
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
Understanding of errors when communicating the billing series to the tax authority in Portugal

Communicating billing series to the Portuguese Tax Authority often results in errors such as incorrect system time (Error 1110) or invalid credentials (Error 1199). Common issues also include inadequate permissions (Error 1200), unregistered subusers (Error 102), and invalid Tax Identification Numbers (Errors 113 and 114). Read more
Portuguese Tax Administration Notification: Authentication on the Finance Portal

The Portuguese Tax Administration has updated password rules for the Finance Portal to enhance user security. New passwords must meet specific complexity criteria and will be issued via letter, requiring users to change them upon first login. The Finance Portal has introduced new rules for passwords to enhance security when accessing services and personal data. The main objective is to ensure stro... Read more