The Tax Agency announced the start of the SII project in 2014 after a lengthy legislative process that has gradually developed since then. The Immediate Information Sharing project was due to come into force in 2017, but the absence of Government delayed rollout of the Immediate Information Sharing system.

In December 2016, the project was relaunched with the approval of Royal Decree 596/2016, of 2 December, which will affect 62,000 companies as of 1 July 2017 62.000, requiring them to submit their VAT ledgers to the AEAT office electronically, removing the requirement to present tax forms 347, 340 and 390.

Currently, a Draft Order is being drawn up to regulate the technical specifications and other details of electronic VAT bookkeeping through the AEAT electronic office.

Análisis de la legislación actual


October 20th, 2014

The Tax Agency launches a modernization strategy for Value Added Tax management, known as SII (Immediate Information Sharing).


July 30th, 2015

The Ministry of Finance publishes a Royal Decree Project to modernize, improve and promote the use of electronic media in the VAT ar


September 22nd, 2015

The Official State Gazette (BOE) announces Law 34/2015, of 21 September, as a partial amendment to General Tax Law 58/2003, of 17 December.


November 18th, 2015

BOE State Gazette publishes updated version of the General Tax Law and regulations thereof , setting January 1, 2017 as the date of entry into force.


December 2nd, 2016

Council of Ministers approves recovery of the SII project by Royal Decree 596/2016, of 2 December, on the modernization, improvement and encouragement of use of electronic means in Value Added Tax management.


July 1st, 2017

SII comes into force for 62,000 Spanish companies now required to file their VAT returns electronically.

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Can we help you?

If you need further information on how the rollout of SII will affect you, please do not hesitate to get in touch with EDICOM.

+34 96 136 65 65