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What is Digital Signature Certificate? Importance for MSMEs

Bullit Team | 2026-03-04

What is Digital Signature Certificate? Importance for MSMEs

On the day a manufacturing company was supposed to file its returns, it encountered an error. 
They logged in to the MCA portal, uploaded the balance sheet, completed the forms, and calculated the fees. 
Next, they clicked on “Submit.” The portal displayed: “Valid Digital Signature Certificate [DSC] required.” 
The director's DSC had expired two weeks earlier. Filing stopped, late fees charged, and stress followed.
This is one of those situations where MSME owners truly understand what a digital signature certificate is and why it’s necessary.

What Is a Digital Signature Certificate?

A digital signature certificate (DSC) is a government-recognised digital credential that allows individuals and businesses to sign documents electronically with verified identity.

Under the Information Technology Act, 2000, a DSC digital signature certificate has the same legal validity as a handwritten signature. Documents signed using a valid DSC are legally binding and traceable.

When you use a digital signature certificate:

A DSC is issued by authorised Certifying Authorities such as eMudhra, Capricorn, VSign, and Protean (NSDL).

If your MSME interacts with regulatory portals, government procurement systems, or statutory filing platforms, your identity must be verified. That verification happens through a digital signature certificate.

Why a Digital Signature Certificate Is Important for MSME Owners?

Compliance in India is fully digital, and uploading documents is not enough. Portals require authenticated sign-off.

This is where a digital signature certificate (DSC) becomes mandatory.

MCA Filings

For Companies and LLPs, a DSC is required for:

Without a valid DSC, the MCA portal will reject the filing even if all forms are correctly prepared.

GST Authentication

Companies must authenticate GST returns using a DSC.

If authentication fails:

Even perfect calculations are irrelevant if authentication is missing.

Government Tenders and GeM Portal

To participate in government procurement and submit bids, MSMEs need a Class 3 digital signature certificate.

Without it:

Income Tax and Audit Reports

Companies are required to digitally sign income tax returns and audit reports.

No valid DSC means the filing cannot proceed, even if computations and documentation are complete.

Types of Digital Signature Certificates for MSMEs

There are different classes of Digital Signature Certificates, but for most MSME use cases, only one truly matters today.

Class 1 DSC

This is the most basic type. It verifies whether the name and email ID provided match official records.

Class 1 DSCs are not used for business compliance or government transactions. They are not relevant for MSMEs operating on regulatory portals.

Class 2 DSC (Now Phased Out)

Class 2 DSCs were earlier used for:

However, Class 2 certificates are being phased out. Certifying Authorities no longer issue new Class 2 DSCs, and existing ones are expiring.

Class 3 DSC (Current Standard for MSMEs)

Class 3 is now the standard and most important type of digital signature certificate DSC.

It involves stricter identity verification and is mandatory for:

If you are wondering how to get a digital signature certificate for business use, this is the class you need. For MSMEs, Class 3 DSC is the operational default.

Cost and Validity of Digital Signature Certificate

The cost of a digital signature certificate depends on:

Typically, the price ranges between ₹800 and ₹2,500.

Most providers issue the DSC in a secure digital signature certificate token, usually a USB device, where the certificate is stored securely.

Validity Period

A DSC is generally valid for:

After expiry, it must be renewed. An expired DSC cannot be used for any portal authentication. For MSMEs, tracking validity dates is critical. Expiry during filing season causes avoidable disruption.

How to Apply for a Digital Signature Certificate Online?

If you want to apply for a digital signature certificate online, the process is straightforward.

Step 1: Choose an Authorised Provider

Apply through licensed Certifying Authorities such as:

Step 2: Keep Documents Ready

You will typically need:

Step 3: Online Application and Verification

On the provider’s portal:

Step 4: Certificate Issuance

Once approved, the DSC is issued and loaded onto a secure USB token. The entire digital signature certificate online process usually takes 1 to 3 working days.

For MSMEs handling multiple directors or authorised signatories, separate DSCs are required.

Common Mistakes MSME Owners Make With DSC

Most DSC-related issues are administrative, not technical.

Common mistakes include:

These issues often surface during:

A simple compliance tracking checklist prevents most disruptions.

Difference between Digital Signature and Electronic Signature

Many MSME owners confuse digital signatures with electronic signatures. However, they are not the same.

An electronic signature may simply involve:

A digital signature certificate, on the other hand:

Government portals require DSC authentication. A scanned signature or basic e-signature will not work. For regulatory compliance, identity verification must be certificate-based.

Conclusion

Technically, you can delay business expansion plans, staff hiring, or other activities. However, you cannot delay authentication for compliance.

For MSMEs, a DSC is a digital infrastructure.

Understanding what a digital signature certificate ensures your business never stops due to avoidable compliance gaps.

Want guidance on sorting your DSC and other compliance issues? Talk to our growth experts at Bullit. 

Book a call today!