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SII filing in VAT Reporting (cloud)

This guide explains SII filing requirements and the process to complete filing using VAT Reporting (cloud)

What is SII? 

SII or (Suministro Inmediato de Información) is a type of electronic reporting requirement for Spain. 

The goal of SII was to move companies towards real time filing for VAT, The SII legislation came into effect on 1st July 2017, meaning that from this date all companies must submit the required data in real time in XML format every 4 days via the website of the Spanish tax authorities.  

What information is declared to the authorities 

The following information must be declared: invoices issued, invoices received, investment goods, documents relating to certain European transactions such as transfers.  

What companies need to file SII? 

If a company invoices over 6 million Euros annually in Spain, they will be required to file SII. 

If a company is on monthly reverse charge REDEME regime, they will be required to file SII. 

Are there fines or penalties associated with SII? 

Failure to file on time or filing with errors can lead to a fine up to 0.5% of the values involved, with a minimum of €300 and a maximum of €6000 per quarter. 

I need to file SII using VAT Reporting, how is this done? 

The good news is that Avalara VAT Reporting (cloud) provides a zero touch approach to filing SII. 

If you are required to file SII then as part of your usual data upload to Avalara you will provide the information required to complete SII filing. The VAT Reporting user does not need to do anything to make the real time submissions to the Spanish Authorities happen, we will complete a daily submission of data to ensure your filing requirements are met. 

We have developed an SII processor within the VAT Reporting tool, which will do the following for you: 

  • Process the data in the database. 
  • Find all invoices which are required to be sent to the Spanish authorities. 
  • Generate the XML file for each book. 
  • Transmit the XML file to the Spanish Authority web service. 
  • Handle the response received and update the VAT Reporting database. 
  • Push invoices to error if an error response is received. 

We are then able to file this directly on your behalf as you complete your normal monthly filing. 

Can I check the status of my SII submissions? 

If you are filing SII through VAT Reporting there are a couple of reports in the reports generator which will be useful in helping you keep track of your SII records. 

Follow the steps below to check your SII reports,

  1. Head to the reports page to generate these reports
  2. click Reports
  3. Click Transaction Reports
  4. Click to select Report type,
  5. Click either: SII Invoices Report, or SII logs Report. 

The SII invoices report will show you the status of each invoice record submitted, invoices can be listed as one of the following: 

  • Accepted: The filing for this invoice has been accepted with the authorities.  
  • Accepted with errors: The filing for this invoice has been accepted, but additional corrective information is required. 
  • Rejected: The filing for this invoice has been rejected, most commonly due to incorrect information such as a duplicate invoice number. 
  • Not processed: The processor could not complete this invoice record, this may be due to invalid data, such as an invoice date with an incorrect format. 


You should now know how to deal with SII using VAT Reporting and how to check the status using the Reports section of VAT Reporting. 

To keep learning head back to the VAT Reporting help home page

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