Fiscal subject related
We can define this code as a unique code composed of the series validation code and the sequential number of the document within the series, assigned by the Tax Authority. This series validation code will consist of a set of at least eight characters and will make it possible to identify a document regardless of who issues it, and which type or series is used. It has the format "ATCUD:CodigodeValidação-NumeroSequential". It will be presented along with the QR code, which is already mandatory to be presented on invoices from 2022.
It is important to note that it must be perfectly readable, regardless of the medium in which it is presented to the customer, and must contain the following elements:
- code for series validation;
- The sequential number of the document within the series.
If documents have more than one page, the ATCUD must appear on all pages of invoices and other tax-relevant documents and, when applicable, must be positioned immediately above the QR Code. While it is not in operation, both the SAF-T and the QR code must indicate " zero" in the ATCUD field, as indicated in the Finance Portal.
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Already subscriber? LoginNew webinar was uploaded: Recorded webinar: Fiscalization and online sales in European countries
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Between March and May 2025, Portugal’s Tax and Customs Authority released new VAT rules and clarifications, with key changes taking effect from July 1, 2025. These include simplified VAT filing procedures, a €650,000 turnover threshold for monthly returns in 2026, and the adoption of the EU SME Scheme for cross-border businesses. Read more
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Already subscriber? LoginNew 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. 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
Subscribe to get access to the latest news, documents, webinars and educations.
Already subscriber? LoginNew 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
Subscribe to get access to the latest news, documents, webinars and educations.
Already subscriber? LoginNew document was uploaded: Q& A from the webinar: Fiscalization and online sales in European countries
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
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Already subscriber? LoginNew document was uploaded: Recorded webinar: Fiscalization and online sales in European countries
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 delve deeper into this topic! Read more