GST emSigner error: Everything you need to know


Google has been recently flooded with searches like ‘GST emSigner error’, ‘error GST emSigner’, ‘emSigner for GST error’, ‘emSigner error in GST’ and so on. It clearly shows that the people filing GST are encountering the emSigner error frequently. This post aims to address the ways to solve this error and let you file your GST returns peacefully.

But before we deep dive and understand the whats, whys, and hows of GST emSigner error, let’s unravel a few basic terminologies related to it, particularly the Goods and Services Tax and the Digital Signature Certificates.

What is Goods and Services Tax (GST)?

The GST is a tax levied indirectly on the supply of goods and services. The Government of India(GoI) introduced the GST in 2017 under its ‘one nation, one tax’ reform. GST is a single tax charged on the supply of goods and services from the manufacturer to the consumers.

Learn more about GST, its types, history, etc. in our detailed guide on GST in case you are new to GST and want to learn more about it.

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What are Digital Signature Certificates (DSC)?

DSCs are the digital equivalent of the electronic format of physical or paper certificates. It authenticates the identity of an individual electronically.

Like the physical documents which are signed manually, the electronic documents (e.g., e-forms) must be signed digitally using a Digital Signature Certificate.

What is GST emSigner?

EmSigner is a simple web-based tool for signing, sending, tracking, archiving, and managing e-documents. It is more secure and much faster than managing paper documents.

Moreover, it allows users to encrypt documents ensuring the security of sensitive information. In the common GST portal, emSigner is used to digitally sign the registration and file a GST return. 

Note: Before installing and using emSigner, make sure the DSC is registered on the GST portal.  

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What is GST emSigner Error, and when does it occur?

The GST emSigner error appears in the form of ‘Failed to establish a connection to the server. Kindly restart the emSigner‘ to the user. It can happen on any internet browser and operating system.

The emSigner error in the GST portal typically occurs when registering or updating the Digital Signature Certificate (DSC) and filing a GST return.

DSC is mandatory for Public Limited Company, Private Limited Company, Unlimited Company, Foreign Company, Foreign Limited Liability Partnership, Limited Liability Partnership (LLP), and Public Sector Undertaking. 

How to solve the GST emSigner error?

The emSigner error in GST can be solved by following the below steps – 

General Steps to resolve GST emSigner error

Step 1: Uninstall the previously installed emSigner software from the computer. 

Step 2:  Install the latest emSigner software from the GST portal. Click on system requirements under the ‘Help and Taxpayers Facilities’ section on the GST home page at the footer. 

Step 3: Go to the third section, Downloading and Installing the web socket installer. 

Step 4: Download the ‘Web Socket Installer‘ from the subsequent page. Now open the downloaded ’emSigner.msi file’.

Step 5: The screen will now display the ’emSigner Setup’ window. Click Next.

Step 6: Select the folder where the software is to be installed and click Next.

Step 7: The software is ready to be installed now. Press Instal. Once the installation is complete, click on Finish. 

Step 8: Right-click on the emSignerGSTN icon and choose Run as Administrator. The screen will display a message that the emSigner service has started. Press OK. 

If the setup is successful, the ‘Digital Signature Signer Window’ will appear on the screen.

Step 9: Restart the computer and right-click on the emSignerGSTN icon again. Don’t forget to select Run as Administrator.

As each web browser has its own set of settings, ensure that all the browser requirements are met for emSigner to run smoothly.

Also, each web browser has its own way to deal with this problem. In this post, we are going to use the most popular browser Google Chrome to resolve the emSigner issue.

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Google Chrome emSigner Solution

Step 1: Install the latest version of Google Chrome and upgrade Java to the newest version. 

Step 2: Open the installed version of Google Chrome and go to ‘Settings’. Under ‘Privacy and Security, go to the section ‘Site Settings’.

Step 3: Go to the ‘Content’ section and click on Javascript. In the ‘Allowed to use Javascript’ section, type the following URLs after clicking the ‘Add’ button: 

After entering the URLs, close the Settings tab. 

Step 4: Now go to the Start menu and open the Command Prompt by right-clicking and running as administrator.

Step 5: In the command screen, type the below-mentioned proxies and port codes: 

‘netsh interface portproxy add v4tov4 listenport=1645 listenaddress= connectport=1585 connectaddress=’.

Step 6: Press enter and open a new window on Google Chrome and enter the following link: ‘‘. Click on ‘Proceed to’. It may throw an error after clicking on this; wait for 15 seconds. 

Step 7: If the Digital Signature (DSC) pen drive is plugged in the computer, ensure to unplug it and plug it in again. Now go to the GST Portal and file return or register and update the DSC.

Also Read: Advantages and Disadvantages of GST: A Detailed Study


Moving away from the old taxation system to the new GST regime has been challenging, especially for small businesses. They cannot afford expensive GST billing software even though maintaining a proper track of invoices is crucial for GST compliance purposes.

The alternate option is to use the GST Register template from Lio, which lets you keep track of your GST numbers within your smartphone.

Thanks to tools like emSigner, filing the GST returns or registering DSC in the GST portal has become way easier. And if the GST portal throws any emSigner error, follow the above steps to resolve it. 

This article is thorough and I am sure that you will benefit from it immensely. With all the information provided to you here regarding GST emsigner error, the next time you face the error, you would know what to do.

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Surabhi Guleria

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By Surabhi Guleria