A wet signature is a handwritten mark applied to a physical document using a pen or other writing instrument. The term “wet” refers to the ink needing time to dry on the paper, and it distinguishes a traditional pen-and-paper signature from an electronic signature or digital signature.

For centuries, wet signatures served as the primary method of authenticating agreements, contracts, and legal documents, and they remain legally valid across virtually every jurisdiction in the world. However, as businesses have shifted toward digital workflows and electronic document management, the practical role of the wet signature has narrowed considerably.

The need for physical presence can slow processes in geographically dispersed teams, wet-signed documents require physical storage and carry a risk of damage or loss, and authenticating a handwritten signature after the fact typically relies on manual comparison or expert testimony rather than a verifiable audit trail.

When Is a Wet Signature Still Required?

Electronic signatures are legally recognized in most major jurisdictions, but certain document types still require a physical signature. The exceptions tend to cluster around the same categories regardless of region: wills and estate planning, powers of attorney, notarized documents, and specific government or court filings.

United Kingdom

The Electronic Communications Act 2000 and the retained UK eIDAS Regulation give electronic signatures broad legal validity, and the Law Commission confirmed in 2019 that this extends to most documents with a statutory signature requirement. The main exceptions where a wet signature is still necessary include:

European Union

The eIDAS Regulation establishes three tiers of electronic signature: simple, advanced, and qualified. A qualified electronic signature carries the same legal effect as a handwritten signature across all member states. However, individual countries retain the right to require wet signatures for specific document types, and requirements around wills, property transfers, and notarized documents vary. Organizations operating across multiple EU jurisdictions should verify local rules before assuming an electronic signature will be accepted.

United States

The E-SIGN Act and the Uniform Electronic Transactions Act give electronic signatures the same legal standing as wet signatures for most commercial transactions. The main exceptions include:

Notarized documents have traditionally required wet signatures and physical presence, though a growing number of states now permit remote online notarization.

What is an Electronic Signature?

An electronic signature encompasses any signature applied in an electronic format. This broad category includes a range of methods, from digitally penning a signature on a tablet to clicking a checkbox or entering a unique code. Electronic signatures have gained legal recognition across many jurisdictions, offering a versatile alternative to the traditional wet signature.

Folderit eSign, Folderit’s proprietary electronic signature technology, exemplifies the advancements in this area. It provides users with a secure, flexible, and legally recognized method to sign documents electronically, streamlining the document management process within Folderit’s Document Management System (DMS).

The legal recognition of electronic signatures varies by region, but the major frameworks all share a common principle: an electronic signature carries the same legal weight as a wet signature provided the signer demonstrates clear intent and all parties consent to transacting electronically. In the United States, the Electronic Signatures in Global and National Commerce Act (E-SIGN) and the Uniform Electronic Transactions Act (UETA) establish this framework at the federal and state levels respectively.

A Look at the E-SIGN Act

Per the E-Sign Act, electronic signatures gain legal standing when the following conditions are met:

Furthermore, the legislation acknowledges scenarios where a traditional wet signature might still be necessary, including:

A Look at the UETA Act

Under the Uniform Electronic Transactions Act (UETA), electronic signatures are afforded legal validity and enforceability under specific conditions, mirroring the principles established in the E-Sign Act but with a focus on uniformity across state laws. The UETA outlines that for an electronic signature to be recognized legally, the following criteria must be met:

Additionally, the UETA specifies instances where electronic signatures might not suffice, similar to the E-Sign Act, including:

The UETA emphasizes the importance of adaptability and legal recognition of electronic transactions across state lines, promoting a standardized approach to electronic signatures. This act plays a critical role in supporting the legal framework for electronic transactions, ensuring that businesses and individuals can rely on the efficiency and security of electronic signatures while remaining compliant with state laws.

Electronic Signature Laws in the UK and EU

In the United Kingdom, the Electronic Communications Act 2000 provides the statutory basis for electronic signatures, and the retained UK eIDAS Regulation (carried over from EU law post-Brexit) establishes the three-tier classification of simple, advanced, and qualified electronic signatures. The Law Commission confirmed in a 2019 report that electronic signatures are capable of meeting statutory signature requirements under English law, provided the signer demonstrates an authenticating intention.

In the European Union, the eIDAS Regulation (EU No. 910/2014) provides a unified legal framework across all member states. A qualified electronic signature (QES) carries the same legal effect as a handwritten signature, while simple and advanced electronic signatures are accepted for most commercial transactions. The regulation also establishes the role of Trust Service Providers (TSPs) who issue the qualified certificates that underpin AES and QES.

It’s crucial to recognize that laws governing electronic signatures may vary internationally. Therefore, verifying local regulations is essential before initiating a digital signature process to ensure compliance and legal validity.

Types of Electronic Signatures

Electronic signatures can be categorized into three main types, each offering varying levels of security and authentication:

Simple Electronic Signatures (SES):

These include actions like typing a name under an email, ticking a box on a form online, or signing on a mobile device for a delivery. The identity of the signer isn’t conclusively proven with a simple signature; it merely indicates that the signer had access to the email or received a unique access code.

Additional methods such as using a corporate ID, a password, or a PIN sent to an email or mobile phone can authenticate the signer to some degree. For instance, a signature stamp may be secured with a password, ensuring only the authorized individual can utilize it. Simple signatures are suited for internal processes needing approval or authorization, like HR approvals, invoice processing, or internal certifications, where the risk to their legal standing is minimal and no extensive identity verification is needed.

Advanced Electronic Signatures (AES):

These signatures involve encryption with the sender’s private key, which a Trust Service Provider (TSP) issues, ensuring the signer exclusively signs the document. Additionally, the document’s signing time is recorded, and the combined file and digital signature are forwarded to the recipient.

An advanced signature’s authenticity can be verified through two-factor authentication, such as email or SMS responses, or even biometric verification for in-person or kiosk signings. Mainly utilized in B2B commercial contracts, advanced signatures offer a significant level of proof regarding the document’s authenticity.

Qualified Electronic Signatures (QES):

The most secure form, qualified signatures, requires encryption and a certificate from a TSP, verifying the signer’s identity and ensuring the document remains unaltered. These certificates are held by the TSP and are accessible anytime, creating a detailed audit trail for each signature. Although similar in some respects to a handwritten signature in terms of documentary proof, a qualified signature is legally binding and enforceable, making it suitable for signing a wide array of documents, including labor and commercial contracts, banking agreements, and insurance policies.

Each signature type serves distinct purposes, from facilitating internal document flows with simple signatures to securing high-stakes contracts with qualified signatures. This stratification ensures that electronic signatures can be adapted to various levels of security and verification needs, making them a versatile tool in the digital age.

How Folderit eSign Replaces Wet Signatures

Folderit eSign offers a plethora of benefits tailored to modern business needs, making it a compelling choice for those looking to streamline their document signing processes. Some of these benefits include:

Conclusion

The transition from wet signatures to electronic signatures represents a significant shift in how we authenticate documents and conduct business. With technologies like Folderit eSign, businesses and individuals have a secure, efficient, and legally recognized method for electronic document signing at their fingertips.

Folderit eSign bridges the gap between traditional and digital methods, offering a comprehensive solution that enhances document security, streamlines processes, and ensures global accessibility. By embracing Folderit eSign, users are equipped with the tools they need to navigate the complexities of modern document management, empowering them to operate more efficiently and effectively in the digital era.

Try Folderit for Free!

Wet Signature: FAQs

Is a wet signature the same as an original signature?

The two terms overlap but are not identical. A wet signature is always an original in the sense that it was physically applied by the signer’s hand, but “original signature” can also refer to any first-instance signature, including an electronic one, depending on context. In legal and business usage, “wet signature” specifically means a pen-and-ink mark on a physical document, while “original signature” simply means the signature is not a photocopy or reproduction.

Can you use an electronic signature instead of a wet signature?

In most cases, yes. Electronic signatures are legally valid for the vast majority of commercial contracts, internal approvals, and business documents in the UK, EU, and United States. The exceptions are narrow and well-defined: wills, certain powers of attorney, statutory declarations, notarized documents, and specific court or government filings may still require a wet signature depending on the jurisdiction. When in doubt, check the requirements for the specific document type and region.

Are wet signatures more legally binding than electronic signatures?

No. Under the E-SIGN Act, UETA, UK eIDAS, and EU eIDAS, a properly executed electronic signature carries the same legal weight as a wet signature. In some respects, electronic signatures offer stronger evidentiary value because they generate a timestamped audit trail recording who signed, when, and whether the document was altered after signing. A wet signature, by contrast, typically requires manual comparison or expert testimony to verify authenticity.