The obligation to comply with the Spanish “Immediate Information Supply” (SII) affects those companies operating in Spain having to file VAT returns on a monthly basis. Such is the case for those with a turnover higher than 6 million Euros during the previous calendar year, the so called “big companies”. The outcome is their obligation to provide the tax authorities electronically with the data of the transactions booked at the VAT registers within the 4 calendar days following the issuing date ...
