
Electronic invoicing in Italy
Centralize the sending, receiving and archiving of all your e-invoices with public and private partners with Comply, the Italian Revenue Service-certified solution that guarantees security and compliance.
The Italian Revenue Agency
The SdI (Sistema di Interscambio) was implemented by the Italian Revenue Agency to facilitate the electronic exchange of tax documents between taxpayers and the agency itself.
This system was implemented to promote the digitization of tax processes and reduce the dependence on paper, thereby simplifying operations and helping to combat tax evasion.
Features of e-invoicing in Italy
Centralized model for efficiency and transparency

Electronic invoicing between companies
Comply automates the sending and receiving of large volumes of electronic invoices via an authorized WebService channel with the Italian government’s Sistema di Interscambio (SdI). The solution easily integrates with any ERP on the market, including SAP, MSDyn365BC, and Sage, to ensurean efficient and seamless workflow.
Electronic invoicing to the public administration
With Comply, your electronic invoicing to the public administration is simple and secure. The platform ensures the creation, transmission and storage of invoices, as well as the automated receipt and management of status notifications sent by the public administration.


NSO electronic orders
Comply is an accredited channel to connect directly to the Nodo Smistamento Ordini (NSO) or order sorting node, allowing the immediate and automated receipt of orders from Italian Public Health Institutions.
Adaptability to future regulatory requirements
In Italy, e-invoicing is subject to constant regulatory updates. Comply is a scalable and always up-to-date solution that automatically adapts to new regulations, providing companies with maximum security and uninterrupted business continuity.

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F.A.Q.
How are SdI outcome notifications handled?
After sending an electronic invoice, SdI returns outcome notifications, including
- Acceptance: the invoice has been successfully delivered;
- Rejection: the invoice contains errors and must be corrected and returned;
- Recipient denial (for government and private companies): the customer can deny the invoice for specific reasons;
- Non-delivery: the invoice has not been delivered, but is still considered issued.
Comply fully automates the management of outcome notifications, monitoring the status of invoices in real time and integrating the information directly into the company's management system.
In the event of a denial or rejection, Comply immediately notifies the user, who can then correct and resend the invoice without interrupting the process.