# SDI (Sistema di Interscambio)

Italian government clearance platform that routes and validates every FatturaPA invoice before delivery.

## Definition

Italian government clearance platform that routes and validates every FatturaPA invoice before delivery.

## Explanation

Operated by Agenzia delle Entrate; mandatory for B2G since 2014 and B2B/B2C since 2019.

Uses XML in the FatturaPA schema; recipients are addressed by Codice Destinatario (7 chars) or PEC email.

## Related resources

- [Italy e-invoicing guide](/resources/countries/italy)

## Related terms

- [Codice Destinatario](/resources/glossary/codice-destinatario): 7-character SDI routing code that tells Italy’s clearance platform which provider should receive a FatturaPA invoice.
- [E-reporting](/resources/glossary/e-reporting): Digital reporting of transaction data to tax authorities, often alongside e-invoicing.
- [ViDA](/resources/glossary/vida): VAT in the Digital Age: EU initiative driving e-invoicing and digital reporting requirements.