How to Resolve Digital Signature Certificate (DSC) Error in GST Using Tally Prime 7.0

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Digital Signature Certificate (DSC) errors are one of the most common issues faced by businesses, accountants, and CA firms while filing GST returns. Even when GST data is correct, returns may fail due to DSC-related problems such as certificate mismatch, token detection issues, or EmSigner errors.

This article explains what DSC errors are, why they occur, and how to resolve DSC errors in GST using Tally Prime 7.0, in a simple and practical manner.

Introduction

While filing GST returns such as GSTR-1, GSTR-3B, refund applications, or E-way bills, digital authentication is mandatory. For companies, LLPs, and certain registered entities, Digital Signature Certificate (DSC) is compulsory.

If the DSC is not configured properly, GST filing through Tally Prime may fail, resulting in submission delays and compliance risks.

This guide provides a step-by-step solution to fix DSC errors in GST filing using Tally Prime 7.0.

What is a DSC Error in GST?

A DSC error occurs when the GST system is unable to authenticate or verify the digital signature used to submit returns. This may happen due to expired certificates, driver issues, PAN mismatch, or incorrect system configuration.

Common DSC Error Messages in GST

• No Digital Signature Certificate found
• Failed to establish connection with signer
• Signer certificate not valid
• DSC not registered on GST portal
• PAN mismatch with DSC
• EmSigner service not running

Main Reasons for DSC Errors in Tally Prime

1. Expired Digital Signature Certificate

DSCs are issued for a limited validity period (generally 1–3 years). If expired, GST filing will fail.

2. DSC Not Registered on GST Portal

Even a valid DSC must be registered or re-registered on the GST portal.

3. USB Token Driver Not Installed or Corrupted

Without proper drivers, the system cannot detect the DSC token.

4. PAN Mismatch

The PAN embedded in the DSC must match the PAN of the authorized signatory registered on GST.

5. EmSigner Utility Not Running

GST uses EmSigner software for digital authentication. If it is not running, signing will fail.

6. Multiple DSC Tokens Connected

When more than one DSC is plugged in, the system may fail to identify the correct certificate.

Step-by-Step Solution to Resolve DSC Error in GST (Tally Prime 7.0)

Step 1: Check DSC Validity

• Insert the USB token
• Open token management software
• Verify expiry date
• Renew the DSC if expired

Step 2: Register or Re-Register DSC on GST Portal

1. Log in to the GST portal
2. Go to My Profile → Register / Update DSC
3. Select the authorized signatory
4. Run EmSigner utility
5. Plug in the DSC token
6. Complete registration

Re-registration is mandatory after DSC renewal or system format.

Step 3: Install or Update USB Token Drivers

• Uninstall old token drivers
• Restart the system
• Install latest drivers provided by token vendor
• Plug the token only after installation

Step 4: Run EmSigner Utility Properly

• Download EmSigner from GST portal
• Run as Administrator
• Allow through firewall and antivirus
• Confirm EmSigner is running in system tray

Step 5: Verify PAN of Authorized Signatory

• Check PAN details in DSC
• Ensure same PAN is mapped as authorized signatory in GST
• Update signatory details if required

Step 6: File GST Return in Tally Prime 7.0

1. Open company in Tally Prime
2. Go to Gateway of Tally → GST → Returns
3. Select the required return
4. Choose Sign using DSC
5. Select correct certificate
6. Submit return

Best Practices to Avoid DSC Errors

• Keep only one DSC token connected
• Renew DSC before expiry
• Always use updated drivers
• Keep EmSigner running during filing
• Avoid antivirus blocking EmSigner
• File returns before peak due dates

Why DSC Errors Increase Near GST Due Dates

During peak filing periods:

• GST servers experience heavy traffic
• EmSigner response time increases
• USB token conflicts become frequent

Early filing significantly reduces DSC-related issues.

How Tally Prime 7.0 Simplifies GST DSC Filing

• Improved GST return interface
• Better DSC detection
• Clear validation messages
• Faster GST portal integration
• Reduced manual intervention

Conclusion

DSC errors in GST filing can delay compliance and increase workload, but most issues are easy to resolve by checking certificate validity, installing correct drivers, running EmSigner properly, and configuring Tally Prime 7.0 correctly.

Following the steps outlined above ensures smooth and error-free GST return filing.

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