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What is the SII of the Tax Agency and how does it work?

Posted: Tue Jan 28, 2025 10:02 am
by seonajmulislam00
The efforts of the State Tax Administration Agency (AEAT) to abandon traditional bureaucracy and face-to-face procedures date back almost to its beginnings, when Internet penetration was still in progress.

It is therefore not surprising that four years ago, the institution decided to go a step further in its digital efforts, moving from the Electronic Office to the automation of certain tasks, with the so-called Immediate Supply of Information (SII) .

This is not a replacement, but rather a complement that facilitates the fight against fraud and the taxpayer's participation in taxes in relation to the registration of books and the monthly return of VAT .

Today at MÁSMÓVIL Negocios we explain what this SII consists of, what its objectives and foundations are, and how both self-employed workers and SMEs faced with the tedious management of the Value Added Tax can benefit from it.

SII Tax Agency
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What exactly is IBS?
Although it is considered a russia number data new instrument, the Immediate Supply of Information is still the transfer to the Electronic Office of the VAT management system that has been operating for three decades .

" A new system for keeping VAT records is being implemented through the AEAT Electronic Office, by means of the quasi-immediate provision of billing records ," the entity's website states.

“ The new SII allows the registration or accounting of invoices to be brought closer to the time of the actual execution of the underlying economic transaction ”. In other words, it allows for the reduction of deadlines and possible consequent interferences.

In practice, the supply requires that the information relating to the billing records be provided through the Electronic Office within a maximum period of four days. The books referred to in the law are the following:

Record Book of Issued Invoices.
Record Book of Invoices Received.
Intra-Community Operations Record Book.
Investment Assets Registry Book.
The SII came into force on July 1, 2017 , requiring taxpayers to send invoicing records for the first half of that year before January 1, 2018. Only companies that had submitted Form 340 were excluded .

In the Provincial Treasuries of Bizkaia, Araba, Gipuzkoa and Navarra, the new legislation came into effect on 1 January 2018.

Who is required to use the SII?
The use of Immediate Supply of Information is mandatory for all taxpayers obliged to settle VAT on a monthly basis. That is:

Large companies : with a turnover of more than 6 million euros.
Companies registered in VAT groups .
Companies registered in the Monthly VAT Refund Regime (REDEME).
Not being included in any of these groups does not mean being left out. Registration with the SII is completely voluntary for other taxpayers with no reason for refusal. But why would a company want to accept additional procedures if they are not mandatory?