“Simplicity is the key to brilliance”

Bruce Lee


The SII (Immediate Supply of Information) is a system of VAT management developed by the Spanish Tax Agency that allows you to, almost instantly, present your invoice records through their Electronic Headquarters.

All those companies that invoice more than six million Euros annually, companies registered in the REDEME (Register of Monthly VAT Return) and the professionals that pay taxes under a special VAT group system are obligated to use SII.

What does SII solve?_

The SII project came as an answer to the need to make the VAT management process more agile between companies and the public administration. Its implementation, in 2017, meant the elimination of the enforceability to present the models 347, 340, 390 and 303. It also removed the obligation to present models 410, 411, 415, 416, 425 and 340 in the Canary Islands and the F50 and 340 in Navarra.

The SII system is also a great tool to favor tax control over companies and, as a consequence, reduce tax fraud.

Don't lose time with manual processes

Forget the paperwork and dedicate your time to what's most important: making your business grow.

SII solution by eDiversa_

comeDiTax is the eDiversa Group technological platform that incorporates SII and SILICIE solutions. With the eDiversa Group SII solution, you can automate all the processes of generation and delivery of your VAT records. Through our platform, you will comply with the obligation to supply the information required by the Tax Agency in a safe and efficient manner and with the least cost possible.

To perform the Immediate Supply of Information with the eDiversa Group SII Solution is as simple as generating a file with the required data in any format (XML, text, Excel...) . The platform will make, automated and if necessary, the conversion of the files to the format required by the Tax Agencies, and will proceed to their remission to the respective electronic headquarters, that will validate and store them. After, it will inform you on the status of each record sent.

With the eDiversa Group SII solution, your accounting records will be stored on our platform and you can access and consult them whenever necessary.

SII advantages_

  • Establish safe connections with total control of transactions.
  • Connect with all Tax Agencies.
  • Choose the solution that best adapts to the volume of information to manage.
  • We periodically revise your fee so that it always adapts to the real volume of records sent.
  • Unlimited technical support to solve any incident in the use of the service.