SII: Electronic Submission of Accounting Data in Spain


SII obligations in Spain
As from 1 July 2017 the Spanish tax authorities have introduced a system for the immediate supply of accounting information to the tax authorities. The submission of accounting data via this platform is mandatory for all taxpayers filing monthly VAT returns, i.e.:
- Companies registered with the REDEME (Monthly Refund Scheme)
- Large businesses with a turnover above 6,010,121.04 €
- VAT groups
There is also the possibility to opt in voluntarily for the SII with a minimum tie-in period of the corresponding calendar year. Taxpayers subscribed to the SII must provide the tax authorities with the electronic invoicing record of the following Books:
- Book of Invoices issued
- Book of Invoices Received
- Book for Certain Intra-Community Transactions
- Book of Investment Goods
The Information will be sent electronically via a Web service using XML-files for communication. These XML-files can be created by using an extension of your ERP-system or by using a third-party software solution. Furthermore, there is the option to use an online form for a small number of transactions. At Marosa we have developed a Software solution for the SII submission process where you provide us with your accounting information via a template and we will convert your information into the format required, submit it to the Spanish tax authorities and provide you with the response of the Spanish tax authorities"
SII due dates in Spain
The SII information has to be submitted in a time frame of four calendar days, more precisely:
The term of four calendar days excludes Saturdays, Sundays and national holidays."
SII penalties in Spain
The fines for a delay are calculated as 0.5% of the invoice amount in the record, with a quarterly minimum of 300 € and a maximum of 6000 €.








