How to Install emSigner Utility for GST Portal A Detailed Walkthrough
If you want to register your Digital Signature Certificate (DSC) on the GST Portal, you’ll need to install the emSigner utility first. This tool is essential for validating your DSC during registration, return filing, or refund applications.
In this guide, we explain how to install emSigner utility for GST Portal, step-by-step — based on official CBIC instructions. We’ll also help you troubleshoot common errors like “emSigner not running” or “Port 1585 unavailable.”
What Is emSigner Utility?
The emSigner utility is a background service developed by GSTN to digitally sign forms and documents using your DSC token (USB dongle). It works with browsers like Chrome and Edge and is mandatory for companies, LLPs, and other entities filing returns using Class 2/Class 3 DSCs.
Step-by-Step: How to Install emSigner Utility for GST Portal
Before You Begin:
- Uninstall any older versions of emSigner.
- Ensure DSC drivers are installed.
- Disable antivirus/firewall temporarily (if needed).
Download emSigner from GST Portal
- Visit the official GST portal: https://www.gst.gov.in
- Go to ‘Register DSC’ under Login > My Profile
- Click the link to Download emSigner Utility (latest version for Windows/Linux)
Install the Utility
- Run the emSigner.exe as Administrator
- Accept the license terms and install to the default folder
- During installation, it configures port 1585 (or 2095 for Linux)
Start emSigner Manually
- After installation, search for “emSigner GSTN” in your Start Menu
- Right-click and select “Run as Administrator”
- You should see the message:
“emSigner is running at https://127.0.0.1:1585“
Step 4: Register Your DSC on GST Portal
- Login to GST Portal
- Go to My Profile > Register DSC
- Select your PAN and certificate
- Enter your PIN (for USB token)
- Done!
Subheading with Keyphrase: Common Issues While Installing emSigner Utility for GST Portal
Here are some frequent issues and their quick fixes:
| Problem | Solution |
|---|---|
| emSigner not starting | Run as Admin; check for antivirus/firewall blocks |
| Port 1585 busy | Kill other services using port (via CMD netstat -a -n -o) |
| Token not detected | Reinstall DSC token driver; try other USB port |
| Browser issue | Use updated Chrome/Edge; enable ActiveX controls in IE |
Expert Tip: Keep your DSC Driver Updated
Most DSC errors during GST filing happen due to outdated token drivers (ePass/ProxKey). Download the latest drivers from manufacturer websites and reboot your PC before reattempting.
Legal Angle: Mandatory DSC Registration under GST
As per Rule 26 of the CGST Rules, digital signature authentication is mandatory for companies and LLPs. The emSigner tool facilitates this compliance digitally. Reference:
🔗 CGST Rules – Rule 26
Summary
To register your DSC on the GST portal, you must install the emSigner utility. Follow this guide to download, install, and troubleshoot emSigner, ensuring seamless digital signing for GST filings and refund claims.
Frequently Asked Questions (FAQs)
Q1. Is emSigner mandatory for all GST users?
No. It’s mandatory only for companies and LLPs who file returns with DSCs.
Q2. What is the port used by emSigner?
emSigner uses port 1585 by default. Linux systems may use 2095.
Q3. Can I use emSigner on Mac?
No. Currently, the GST portal supports emSigner only on Windows and Linux.
Q4. How to fix “Failed to establish connection to emSigner” error?
Ensure emSigner is running, check port status, run it as administrator, and disable firewall/antivirus if necessary.
Need Help With GST Filing or DSC Troubles?
At Efiletax, we assist businesses in GST return filing, DSC setup, and complete digital compliance.