The Solution for digital unified proxy
UniDel
As of December 8, 2025, the single proxy (delega unica) for using the online services of the Revenue Agency (Agenzia delle Entrate) and the Revenue Agency-Collection (Agenzia delle Entrate-Riscossione) is operational.
It was introduced by Article 21 of Legislative Decree No. 1 of January 8, 2024 (the so-called “Compliance Decree”) and implemented through the Revenue Agency Provisions of October 2, 2024, and August 7, 2025. The reform is part of the process of streamlining and digitalizing tax compliance, aiming to replace the previous fragmented system of proxies and introduce a single, exclusively digital model with a unified expiration date.
The solution
DiGi ONE offers a SaaS service called UniDel, allowing taxpayers—in a simplified manner and by utilizing non-qualified Advanced Electronic Signature (FEA)—to grant authorization to one or more authorized intermediaries to perate on one or more online services of the Revenue Agency.
Signing digitally your proxy anywhere and from any device
Having your own Digital Signature at any time and in any place thanks to the webapp functionality means being able to count on wider scenarios of use in different professional contexts, optimizing authorization times.
In addition, UniDel provides modern RESTful API to be easly integrated with any digital storage service for IT documents already present in the Company.
Main Functionality
Default pin-based authentication and user friendly otp.
Check Electronic Signature certificates validity.
Preview of electronically signed document.
Simple, intuitive and fully integrated management of signatures and communications.
Document approval process advanced management with signature record.
Documents typesetting according to predefined layouts.
UniDel Solution Advantages
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