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Spanish tax authorities release updated SII technical documentation

The technical documentation of the Suministro Inmediato de Informacion (SII), otherwise known as Spain’s immediate electronic reporting system for VAT in Spain, has been updated by Spanish tax authorities.     Among the changes, adjustments have been made to benefit's margin by adding the value AJ in the register of issued invoices. The new validations and errors which come with this new code have also been implemented in this updated version. The amendments will be effective from 1 January 2023.       The documentation can be accessed via the following link:    

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