Understanding Italy's e-invoicing mandate
Since January 2019, Italy has required electronic invoicing for all B2B and B2C transactions between entities established in Italy. This makes Italy the first major European country to mandate universal e-invoicing, and compliance is non-negotiable for businesses operating in the Italian market. The system is managed by the Agenzia delle Entrate and has fundamentally changed how businesses handle their invoicing processes.
How the Sistema di Interscambio (SdI) works
The SdI, managed by the Italian Revenue Agency, is the mandatory hub for all electronic invoices. The flow works as follows: the seller generates an XML invoice in FatturaPA format, transmits it to the SdI either directly through the Agenzia delle Entrate portal or via an accredited intermediary, the SdI validates the format (checking VAT numbers, recipient codes and XML structure), and routes the validated invoice to the recipient via their unique 7-character codice destinatario or certified email address (PEC). If validation fails, the SdI returns a rejection notification within 5 days, and the seller must correct and resubmit.
Technical requirements
- Format: FatturaPA XML standard (version 1.2 or later), with specific fields for invoice type, VAT rates, payment terms and recipient identification
- Digital signature: Recommended but not always mandatory when transmitting through accredited intermediaries
- Archiving: 10-year digital preservation per CAD (Codice dell'Amministrazione Digitale) regulations, with certified storage providers
- Timing: Immediate invoices must be issued within 12 days of the transaction; deferred invoices by the 15th of the following month
- Codice destinatario: Each business must communicate their 7-character SdI code to suppliers for invoice routing
Impact on e-commerce businesses
Online sellers face specific challenges with e-invoicing: high transaction volumes requiring full automation, integration with multiple sales channels (Amazon.it, eBay.it, ePrice, own webshop), and the need for real-time invoice generation. A robust software solution that automatically generates compliant e-invoices from marketplace orders is essential. For B2C sales where the customer does not request an invoice, sellers must still transmit daily receipts (corrispettivi telematici) through a certified electronic cash register.
Benefits beyond compliance
E-invoicing eliminates data entry errors, speeds up payment cycles, improves fiscal transparency and simplifies accounting. Invoice data is automatically available for pre-filled VAT returns prepared by the Agenzia delle Entrate, reducing administrative burden significantly. Businesses using integrated systems save an estimated 7-8 euros per invoice compared to traditional paper processes.
Penalties for non-compliance
Failure to issue electronic invoices carries penalties of 5% to 10% of the undocumented VAT amount, with a minimum of 500 euros per invoice. Late transmission is penalized at a reduced rate if regularized within the periodic VAT settlement deadline. Given the automated nature of the SdI, non-compliance is easily detected by the tax authorities.
Zunapro integrates e-invoicing directly into the sales workflow: every order automatically generates a compliant XML invoice, transmits it via SdI and archives it according to Italian regulations.
