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Integration of Odoo with SII (Immediate Supply of VAT Information)

Comply with the SII automatically and securely from Odoo
April 1, 2026 by
Integration of Odoo with SII (Immediate Supply of VAT Information)
Albert Cabedo

TheImmediate Supply of Information (SII) is a VAT management system that requires certain companies and professionals to send billing records to the Tax Agency almost immediately. To properly comply with this obligation, it is essential to have a tool that allows to automate the process and minimize errors.


Odoo facilitates integration with the SII, allowing for efficient and centralized management of VAT information submission. In this news article, we explain what you need to consider for proper integration.   


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In this section, you can find answers to some of the most frequently asked questions.


What is the SII and who does it affect?


The SII requires certain companies to submit data on their issued and received invoices within a short timeframe. The main groups affected include:

  • Companies registered in the REDEME
  • Large companies
  • VAT groups

Complying with the SII requires precise management of billing and accounting.


How the integration of Odoo with the SII works

Odoo allows you to record and organize all the necessary information for the SII from the Accounting, facilitating the submission of the data required by the Tax Agency.

With proper configuration, Odoo allows:

  • Register invoices with the correct tax information
  • Automate the submission of VAT books
  • Control errors and submission statuses
  • Keep information updated in real time


The importance of proper configuration


A proper integration of the SII in Odoo is key to avoiding incidents, penalties, or errors in the information submitted. Therefore, it is advisable to have a specialized consultancy to review the configuration and supervise the process.

At Contaldia we help companies and freelancers to integrate Odoo with the SII, ensuring compliance with regulations and efficient and secure VAT management.


https://www.youtube.com/@ContalDia



Advantages of managing the SII from Odoo

Using Odoo to manage the Immediate Supply of Information allows companies to automate much of the work related to sending data to the Tax Agency. This not only reduces the administrative burden but also improves the reliability of the information submitted.

Among the main advantages are:

  • Automation of invoice record submissions

  • Reduction of errors in tax information

  • Greater control over the status of submissions to the SII

  • Direct integration with the company's accounting

  • Time savings in administrative tasks

Thanks to this integration, companies can focus on their core activities while the system automatically manages much of the tax obligations related to VAT.


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Supervision and control of submissions to the SII

In addition to the automatic submission of information, Odoo allows for detailed tracking of the status of each record submitted to the SII. From the system itself, it is possible to check if the invoices have been accepted, if there are any errors, or if any corrections need to be made.

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This control allows for quick detection of incidents and correction before they can generate tax problems. It also facilitates the periodic review of VAT books and improves the traceability of all accounting information.

Having a system that centralizes these processes provides greater security and transparency in VAT management, especially for companies that handle a high volume of billing.


📩 Contact us and discover how to integrate Odoo with the SII and meet your tax obligations easily and automatically.

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