Your Guide to Advanced Electronic Signatures (AES) 

Your Guide to Advanced Electronic Signatures

In this article, you’ll learn about Advanced Electronic Signatures (AES), including what they are, when to use them, and how they ensure the security and enforceability of your important signed documents. We’ll cover the key requirements for AES, examples of important documents that need them, and how Secured Signing meets these standards with features like audit logs, user-based PKI Digital Signatures, and ID Verification. 

Whether you’re looking for a basic understanding or a reliable and trusted AES vendor, this article provides a comprehensive guide to AES. 

What is an Advanced Electronic Signature (AES)? 

We’ve covered what a digital signature is in a previous article, and what it means to sign a document with a digital signing platform, but what is an advanced electronic signature? 

An Advanced Electronic Signature, as defined by UK Legislation for Regulation (EU) Article 26, shall meet the following requirements: 

  1. It is uniquely linked to the signatory (you’re able to identify the person(s) signing the document – identity) 
  2. It is capable of identifying the signatory (verifying the identity of the person signing – identity) 
  3. It is created using electronic signature creation data that the signatory can, with a high level of confidence, use under their sole control (ensure the person signing is who they say they are – intent) 
  4. It links to the data and can clearly show when changes are made to a document after it has been signed (tamper-evident – ensure the integrity of the information and data held within the signed document).  

At Secured Signing, we call this the 3 I’s. Identity. Intent. Integrity.  

These three things are an integral part of using a trusted digital signing provider that allows you to have trust in the signing system and processes and ensure the enforceability of all your key, mission-critical documents once they have been signed.  

You can read more about the enforceability of digital signatures and how to ensure enforceability here. 

Why and When to Use an Advanced Electronic Signature? 

Whenever you are signing key documents that you need to ensure enforceability and that they will hold up in the court of law, you want an advanced electronic signature solution that can give you that peace of mind. 

From 6 April 2025, the HM Revenue & Customs (UK) stated tax agents and practitioners submitting income tax or PAYE repayment claims on behalf of others, an advanced electronic signature process must be used to obtain the appropriate authorization from their clients. HMRC’s new submission requirements relate to P87, R40, and MATCF print and post forms.  

What are examples of key documents requiring Advanced Electronic Signature 

Commercial Contracts: Sales agreements, partnership contracts, franchise agreements, and distribution contracts 

Consumer Credit Agreements: High-value transactions and secure financial documents often require AES for enhanced security and identity verification. 

Employment Offer Letters and Work Contracts: Used to formalize hiring processes while ensuring compliance with legal documentation requirements. 

Mortgage and Loan Documents: High-value financial transactions requiring secure authentication. 

 

There are many types of documents that could require an advanced electronic signature, and it is on the parties to adhere to their governing bodies’ rules and regulations. 

How does Secured Signing meet Advanced Electronic Signature requirements? 

Secured Signing is a global leader in the eSignature space and complies as an advanced electronic signature vendor by allowing its customers the best methods available to go above and beyond Advanced Electronic Signature requirements. 

With Secured Signing, our signatures have the ability to: 

Confirm the Identity of the Signer with Secured Signing 

Secured Signing is able to identify the person signing the document as we require the name and email address of the person signing and generate a unique digital signature for this person, technically known as our user-based PKI digital signatures.  

This means that each signer has their own unique digital signature when using our Secured Signing platform, and you can verify each of the signatures individually once the document has been signed. 

With additional layers of identifying the person signing, Secured Signing ID Verification feature allows for credential analysis of a government issued ID and advanced biometric authentication. ID Verification is an authentication process used before the signer gains access to the document itself and is a good way to protect your business from fraudulent actors. 

Confirm the Intent of the Signer with Secured Signing 

Secured Signing digital signatures can be set up to state a “reason” for signing the document, and we have other options to help with confirming the intent of the signer. One feature that is beneficial for intent is video signing, which is what it says it is.  

You are able to jump into a real-time video session, talk through the document that you are wanting to get signed with your signers, and then watch them sign the document. A recording of the video signing session is captured and can be linked to the final document signing so all parties have evidence that the signing took place. 

A little different to Video signing, is Video Confirmation, a popular feature used predominantly in the finance industry to confirm identity and intent of the signing process.  

This is achieved by recording a short video after the signing process is completed where the signer opens their camera or webcam, and based on a Secured Signing prompt, must perform the gesture. This video is then stored and is linked to the signed document and can be reviewed after the fact to ensure that the person is who they say they are at the signature moment. You can learn more about video confirmation here. 

Confirm the Integrity of the Document with Secured Signing 

Secured Signing Digital Signatures ensure that once the first signature has been applied to the document, any alterations after the fact will be evident on the document itself. When you use a secure digital signature, the signature acts like a tamper-proof seal. Once the first person signs, the document is locked. If anyone tries to change the document later, the signature will show that it’s been altered. This builds trust, as everyone can rely on the signature to show if the document has been modified.) 

Simply put, if you’re in the search for an Advanced Electronic Signature vendor, Secured Signing is a trusted global solution for you. Our customers agree. 

Learn more about Advanced Electronic Signatures 

The ability to understand the difference between an electronic signature and an advanced electronic signature is important when you are getting your key documents signed. Not only for you as the signer or the person getting the documents signed, but also important when submitting these digitally signed bodies to governing bodies that have specific rules and regulations. 

If you want to discuss how Secured Signing can become your trusted Advanced Electronic Signature (AES) vendor, reach out to us today and one of our team will be in touch. Need a solution now? Sign up today.