Wet Signature vs. Electronic Signatures: What You Need to Know

Posted by Esther Okunlola | March 28, 2025 | Business, proposals

Signatures play a crucial role in formalizing business agreements, ensuring trust, and legally binding parties to the terms outlined in a contract or proposal. Whether in traditional paper-based formats or modern digital platforms, signatures serve as a confirmation of intent, authorizing transactions and preventing disputes.

A business proposal is more than just a document. It is a commitment. When a client or business partner signs a proposal, they acknowledge that they have read, understood, and agreed to the outlined terms. Without a signature, proposals lack legal enforceability, making it difficult to hold parties accountable for their commitments.

Key reasons why signatures matter in business proposals:

  • A signed proposal can serve as a legal contract, protecting both parties in case of disputes.
  • Businesses that require signatures on proposals signal professionalism and commitment to ethical dealings.
  • Signatures confirm that both parties have mutually agreed on pricing, deliverables, deadlines, and conditions.

Choosing the right type of signature is critical for businesses, as it affects the speed, security, and legality of a business proposal. While wet signatures have been the standard for centuries, electronic signatures offer a more flexible and streamlined approach, particularly in digital workflows. 

What is a Wet Signature?

A wet signature is a handwritten mark made with ink on a document, which serves as a traditional way to validate agreements. It’s been the gold standard for business contracts, legal documents, and high-value deals for centuries. To sign a business proposal with a wet signature, you typically need to print the document, sign it by hand, and then scan or mail it back. While this process is familiar and trusted, it can slow things down.

How wet signatures work in business proposals

Wet signatures are often required for formal contracts, particularly in industries like finance, real estate, and government. High-value deals and legally binding agreements frequently depend on them for added security and compliance. However, relying on physical signatures can create delays, especially for businesses working remotely or across different time zones.

Legal validity of wet signatures

Despite the rise of digital solutions, wet signatures are still necessary in certain cases, such as government contracts, notarized documents, and some financial agreements. Industries that prioritize fraud prevention and strict regulatory compliance continue to favor them. While they provide a strong layer of authenticity, their time-consuming nature is leading more businesses to explore electronic alternatives for quicker, more efficient deal closures. This brings us to e-signatures.

What is an Electronic Signature?

An electronic signature, or e-signature, is a digital way to sign documents, which eliminates the need for physical paperwork. It can take various forms, including a typed name, an uploaded image of a handwritten signature, or a highly secure cryptographic signature. Unlike traditional wet signatures, e-signatures allow for instant approvals from anywhere, making them a convenient option for businesses aiming to speed up their workflow and improve on their productivity.

How electronic signatures work in business proposals

In business proposals, electronic signatures offer a seamless and efficient way to finalize agreements. Instead of printing, signing, scanning, and emailing documents, parties can sign digitally from any device with just a few clicks. This not only saves time but also reduces administrative work. Many businesses use e-signature which is integrated into business proposal software like Prospero, which allows clients to sign proposals instantly, track signature status, and receive automated reminders for pending approvals. By cutting down on delays, e-signatures help businesses close deals faster and maintain a smooth sales process.

Legal validity of electronic signatures 

Electronic signatures are widely recognized and legally binding under various global laws. These regulations ensure that e-signatures have the same legal standing as wet signatures, provided they meet certain security and authentication standards. In most cases, businesses can confidently use e-signatures for contracts, agreements, and proposals without worrying about legal disputes. However, some highly regulated industries or government contracts may still require traditional wet signatures

Wet vs. Electronic Signatures in Business Proposals

When it comes to signing business proposals, the choice between wet and electronic signatures can significantly impact speed, security, costs, and compliance. Traditional wet signatures have been the standard for centuries, requiring physical ink on paper, while electronic signatures have emerged as a faster, more efficient alternative. Let’s break down the key differences and how they affect businesses.

1. Speed and efficiency

Wet Signatures: The process of obtaining a wet signature can be time-consuming. It typically involves printing the document, signing it by hand, scanning it back into a digital format, or mailing it to the recipient. If multiple parties are involved, this back-and-forth can stretch the approval process over days or even weeks, delaying important business deals.

Electronic Signatures: In contrast, e-signatures eliminate these delays by enabling instant signing from anywhere. With just a few clicks, a contract can be reviewed, signed, and sent back within minutes. Businesses using proposal software like Prospero can integrate e-signatures into their workflow, allowing clients to approve proposals in real time. This speed advantage is especially critical for time-sensitive deals where every moment counts.

2. Security and  fraud prevention

Wet Signatures: While handwritten signatures may feel more personal, they come with security risks. Physical documents can be easily forged, altered, or even misplaced. In cases of disputes, proving the authenticity of a wet signature can be challenging, as there is often no verifiable proof of when and where the document was signed.

Electronic Signatures: On the other hand, e-signatures incorporate multiple layers of security. Features such as encryption, audit trails, timestamps, and multi-factor authentication ensure that signatures are authentic and traceable. Each signed document comes with a digital fingerprint, making it easy to verify who signed it, when, and from which device. This level of security drastically reduces the risk of fraud and unauthorized alterations.

3. Cost-effectiveness

Wet Signatures: Paper-based signatures come with hidden costs. Businesses must account for expenses related to printing, paper, ink, courier services, and physical storage for signed documents. Over time, these costs add up, particularly for companies that handle large volumes of contracts and proposals.

Electronic Signatures: E-signatures eliminate these costs altogether. By switching to digital signing, businesses can save money on office supplies, mailing fees, and storage space. Additionally, electronic documents reduce the environmental impact by minimizing paper waste, making them an eco-friendly choice.

4. Legal compliance in business proposals

When Businesses Must Use Wet Signatures: Despite the benefits of electronic signatures, there are certain situations where wet signatures remain mandatory. Industries such as government, real estate, and finance often require wet signatures for legally binding contracts, notarized agreements, and high-value transactions. In these cases, physical signatures are preferred to ensure compliance with strict regulatory requirements.

How E-Signature Laws Protect Businesses: Fortunately, electronic signatures are widely recognized under laws. These regulations establish e-signatures as legally binding, provided they meet specific security and authentication standards. Businesses that rely on electronic signatures can confidently use them for contracts, knowing that they hold the same legal weight as handwritten signatures.

Real-World Use Cases of Signatures in Business Proposals

The choice between wet and electronic signatures in business proposals depends on factors like legal requirements, industry standards, and the need for efficiency. While some deals still require physical signatures, many businesses are turning to e-signatures to speed up processes and eliminate paperwork.

When wet signatures are needed

Despite the growing adoption of electronic signatures, some industries and high-stakes agreements still require traditional ink-on-paper signatures for compliance and security reasons.

  • Corporate mergers and acquisitions: Large business deals, such as mergers and acquisitions, often involve multiple stakeholders, legal teams, and regulatory bodies. In such cases, wet signatures provide an extra layer of legitimacy and formality, ensuring that all parties physically acknowledge and agree to the terms before finalizing the transaction. These deals typically require in-person meetings and notarized signatures to prevent disputes and unauthorized alterations.
  • Government contracts: Government contracts are often subject to strict regulations, requiring wet signatures to ensure compliance. Documents related to public infrastructure, defense contracts, or government funding agreements may legally mandate physical signatures to uphold accountability and transparency. Additionally, certain legal documents—such as wills, property deeds, and notarized contracts—must be signed in ink to be considered legally binding and enforceable.

When electronic signatures are preferred

For industries that prioritize speed, remote collaboration, and cost-effectiveness, electronic signatures have become the go-to solution for handling business proposals and contracts.

  • Freelancers and agencies closing deals remotely: Freelancers, and creative agencies rarely have the luxury of in-person meetings for contract signings. Instead, they use electronic signatures to finalize agreements with clients across different locations—whether it’s a content marketer onboarding a client, or a PR agency closing a deal with a brand. E-signatures allow them to send, sign, and return contracts instantly.
  • SaaS and B2B companies streamlining approvals: In industries like Software-as-a-Service (SaaS) and B2B sales, closing deals quickly is a priority. Sales teams use electronic signatures to accelerate contract approvals, reducing the time it takes to move prospects from proposal to payment. 

The Role of Proposal Softwares like Prospero in E-Signatures

As businesses increasingly shift to digital-first solutions, proposal software like Prospero plays a crucial role in simplifying and securing the e-signature process. One of the biggest advantages of using proposal software is the ability to integrate e-signatures directly into the proposal workflow. This eliminates the need for printing, scanning, or mailing physical documents, ensuring a seamless signing experience for clients and business teams alike.

How does Prospero make it easy?

  • Instant signing from any device: With Prospero, clients can sign proposals instantly, from anywhere, and on any device—be it a laptop, tablet, or smartphone. This flexibility is especially useful for businesses that work with clients across different time zones or operate remotely. Instead of waiting days for a physical signature, agreements can be finalized within minutes, reducing turnaround time and increasing efficiency.
  • Real-time tracking and automated reminders: Prospero doesn’t just enable e-signatures; it also helps businesses track the status of their proposals in real time. Once a proposal is sent, users can see whether the recipient has viewed, signed, or ignored the document. Additionally, the software sends automated reminders to clients who have yet to sign, ensuring that no deals slip through the cracks due to missed deadlines or overlooked emails.
  • Document authentication: Each signed proposal comes with an audit trail, tracking details like the signer’s IP address, timestamp, and device information. This ensures transparency and prevents signature disputes.
  • Flexible signing methods to suit different needs: Not all clients prefer the same signing method, and Prospero accommodates this by offering multiple ways to sign a proposal. Clients can manually draw their signature for a more personal touch. Alternatively, they can upload a copy of their signature if they have a pre-existing version. For those who prefer a quick and straightforward option, Prospero allows signers to simply type in their name.
  • Multiple signers allowed: In many business deals, more than one party needs to sign the proposal. Prospero supports multiple signers, allowing businesses to assign signing roles and collect approvals from the stakeholders in an organized sequence. This eliminates confusion and ensures that everyone involved in the deal is aligned before moving forward.

Future of Signatures in Business Proposals

The growing reliance on e-signatures is reshaping how businesses handle contracts and agreements. With the increasing adoption of digital workflows, more companies are moving towards paperless transactions. 

Trends in digital contracts and paperless workflows

Businesses across industries are increasingly relying on e-signature technology to facilitate faster, more efficient global transactions. The demand for seamless, remote-friendly contract signing has driven the adoption of digital solutions that eliminate the delays and costs associated with paper-based agreements. With advancements in artificial intelligence (AI) the future of digital contracts is set to become even more secure and intelligent. AI-driven contract analysis can help businesses identify risks, suggest changes, and streamline approvals, while blockchain integration ensures transparency, immutability, and fraud prevention. These innovations will not only enhance trust in digital agreements but also create smarter, self-executing contracts that trigger automated actions once conditions are met.

The Decline of Wet Signatures in Business

As businesses shift toward digital-first operations, the need for wet signatures continues to decline. Traditional paper-based contracts are gradually being phased out in favor of e-signatures, which offer speed, convenience, and security. Organizations are prioritizing digital agreements to reduce paperwork, cut administrative costs, and support eco-friendly initiatives. Additionally, legal frameworks worldwide are adapting to the growing reliance on e-signatures, reinforcing their legitimacy and enforceability. Regulatory bodies in multiple countries are updating their laws to acknowledge electronic signatures as a standard, further reducing the necessity for physical signatures in business proposals and contracts.

As the world moves toward a more connected and paperless future, e-signatures will continue to shape the way businesses operate, providing a secure, efficient, and legally recognized alternative to traditional signing methods.

Conclusion

Choosing between a wet signature and an electronic signature depends on the nature of the business proposal and the industry’s legal requirements. Wet signatures remain essential for high-security contracts, but electronic signatures offer undeniable advantages in speed, cost-effectiveness, and convenience.

For businesses looking to streamline their proposal approvals, electronic signatures provide a seamless and efficient solution. Prospero’s built-in e-signature feature makes it easier to get proposals signed without unnecessary delays. Sign up and try Prospero for free! 

FAQs

Are electronic signatures legally binding in all business proposals?
Yes, electronic signatures are legally binding in most contracts, provided they comply with e-signature regulations. However, certain agreements, such as notarized documents or government contracts, may still require wet signatures.

Can I use a mix of wet and electronic signatures in my contracts?
Absolutely. Many businesses use e-signatures for efficiency while reserving wet signatures for legally mandated agreements or high-value contracts that require additional authentication.

What are the security risks of e-signatures in proposals?
While e-signatures are generally secure, businesses should use reputable proposal software with encryption, audit trails, and authentication features to prevent fraud or unauthorized access.

How do I implement e-signatures in my business?
You can integrate e-signatures using proposal software like Prospero, which allows clients to sign proposals remotely, track approvals, and receive automated reminders for unsigned documents.

Are e-signatures accepted for international contracts?
Yes, many countries recognize e-signatures under their own regulations, such as eIDAS in the EU and the ESIGN Act in the U.S. However, it’s important to verify the legal requirements of the specific country where the contract is being signed.

What happens if a client disputes an electronically signed contract?
E-signatures like Prospero’s come with audit trails that log signer details, timestamps, and IP addresses, which serve as legal proof in case of disputes. 

Do electronic signatures expire?
No, electronic signatures do not expire, but the validity of a signed document depends on the agreement’s terms and the legal framework under which it was signed.

Can multiple people sign the same electronic document?
Yes, proposal software like Prospero allows multiple signers, enabling different stakeholders to sign in the correct order while maintaining document security and authenticity.

Do I need special software to create an e-signature?
Not necessarily. Most proposal platforms offer built-in e-signature tools where users can type, draw, or upload their signatures. Additionally, e-signature services like DocuSign and Adobe Sign are widely used for business agreements.

How does e-signature software ensure compliance with legal standards?
E-signature platforms comply with industry regulations by providing encryption, secure authentication, and detailed audit trails. These features ensure documents remain tamper-proof and legally valid.

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