Signing with SPID: All You Need to Know

SPID, the Public Digital Identity System, is the single access key for all online services of the Public Administration and other participating private entities. Although primarily created as an authentication tool, SPID can also be used to affix a form of electronic signature to digital documents.

Technically, when we refer to "signing with SPID", we primarily mean using the SPID digital identity to authenticate a user who is about to affix a simple or advanced electronic signature to a document. SPID, in itself, is not a qualified electronic signature, but its robust identification procedure guarantees a high level of security and attribution.

The process usually unfolds as follows:

1. Accessing the service: The user accesses a platform that requires a document to be signed (e.g., a contract, an administrative procedure, a declaration).
2. SPID Authentication: Authentication via SPID is requested. The user chooses their Identity Provider (e.g., PosteID, SielteID, ArubaID, etc.) and enters their credentials (username and password) and, if required, the OTP code or second-level authentication via an app.
3. Signing: Once authenticated, the system links the user's identity to the document and generates an electronic signature. Depending on the platform and context, this can be a Simple Electronic Signature (SES) or an Advanced Electronic Signature (AES), with varying levels of legal validity and security.

It is crucial to understand that the legal validity of this signature heavily depends on the context of use and the specific technology employed by the platform integrating SPID. The eIDAS regulation, transposed into Italian law, defines the different types of electronic signatures and their legal effectiveness. For proper document management, particularly for specific categories such as Documents for short-term rental property managers, it is vital to adopt solutions that guarantee the integrity and authenticity of every action.

For decades, businesses and professionals have grappled with the complexities of analogue document management. Printing, manual signing, scanning, physical archiving, and shipping are all processes that consume valuable time and resources. Not only that, but the risk of errors, loss, or alteration is significantly higher compared to digital workflows.

Imagine a company that needs to manage hundreds of contracts every month: every printed sheet, every manually affixed signature, every envelope sent represents a direct and indirect cost. The time taken to conclude affairs lengthens, operational efficiency suffers, and the ability to respond quickly to market demands diminishes. Added to this is the need to comply with stringent document retention regulations, which often results in enormous physical archives requiring space and maintenance.

The introduction of SPID has opened up new opportunities to dematerialise many of these processes. Using SPID for document signing offers numerous advantages:

• Simplification and speed: The signing process becomes entirely digital, eliminating the need to print, sign by hand, and scan. This drastically reduces processing times.
• Legal recognition: Thanks to the robustness of the digital identity provided by SPID, the resulting electronic signature has high reliability and, in many contexts, legal validity comparable to a handwritten signature, depending on the type of signature implemented.
• Security: SPID's multi-factor authentication ensures that only the holder of the digital identity can affix the signature, reducing the risk of fraud or misuse.
• Traceability: Every signing operation is traceable and uniquely linked to the user's SPID identity, providing clear proof of subscription.

This approach is particularly advantageous for scenarios requiring remote document signing, such as signing a Lease agreement online or other commercial agreements, making the entire process smoother and more accessible.

While using SPID for signing offers significant opportunities, it's crucial to avoid some common pitfalls to ensure your signed documents are valid and secure:

• Confusing SPID with a Qualified Digital Signature (QES): SPID is an authentication and identification system. A QES is an electronic signature with maximum legal validity, based on a qualified certificate issued by a trust service provider. While SPID can be used as a foundation for an Advanced Electronic Signature (AES), it is not in itself a QES. For documents requiring the highest evidential weight, a QES might be necessary.
• Failing to Verify the Signature Type: Before proceeding, ensure the platform uses SPID to generate an electronic signature with the level of validity required for the document in question (e.g., SES, AES, or QES through integration).
• Ignoring Compliant Archiving: Digitally signing a document is only half the battle. It's crucial that the signed document is archived in compliance with legal standards to guarantee its long-term validity and integrity.
• Not Carefully Reading the Document Before Signing: Even though the process is digital, the responsibility to read and understand the document's content rests entirely with the signatory. The ease of signing should not lead to carelessness.

While SPID offers robust identification, "signing with SPID" is often configured as an Advanced Electronic Signature (AdES) or, in some cases, a Simple Electronic Signature (SES), depending on the service's implementation. For documents requiring the highest legal guarantee (e.g., deeds for which the law requires written form ad substantiam), the Qualified Electronic Signature (QES) remains the benchmark. It is always advisable to consult a legal expert or verify the specific regulatory requirements of your industry to ensure that the type of signature used is appropriate for the document's legal purpose.

Adopting electronic signatures, whether SPID-based or using other technologies, is crucial for accelerating the closure of deals and contracts. Forget dead time spent on printing and posting: with electronic signatures, your quotes and contracts can be signed in minutes, wherever your clients are, enhancing their experience and your commercial efficiency. For a deeper dive into how this can impact your business, we invite you to read our article Digitally Signed Quotes: Close Deals Sooner.