Digital Certificate for Income tax return

How to Use a Digital Signature Certificate for Income Tax Return Filing?

Online Legal India LogoBy Online Legal India Published On 11 Nov 2020 Updated On 05 Apr 2025 Category Income Tax

A Digital Signature Certificate (DSC) is an electronic form of your signature that helps in verifying your online identity. It makes sure that all the documents you have signed digitally are authentic and secure. In today’s digital world, online security is vital, and a DSC protects sensitive information, prevents fraud, and makes online transactions safe and legally valid.

For Income Tax Return (ITR) filing, a DSC is needed for companies, businesses, and individuals with a high income rate. It makes the process quicker, eliminates paperwork, and ensures a smooth and secure tax filing experience. This piece of content will provide you with all the relevant information on using a digital signature for income tax return filing.

Digital Signature Certificate and Its Need in Income Tax Return Filing

A Digital Signature Certificate is an electronic form of a signature used to securely sign online documents. It ensures the authenticity and integrity of the information being shared. In Income Tax Return filing, a DSC is needed for secure and paperless filing, especially for businesses, companies, and individuals whose accounts require auditing. It eliminates the need for manual signatures and physical paperwork, which makes the process faster and more reliable. A DSC also prevents fraud by verifying the identity of the taxpayer. It is mandatory for certain categories of taxpayers and can be easily obtained through authorized agencies.

What is Income Tax Return filing?

Income Tax Return filing is the process of reporting your income, expenses, and taxes paid to the government. It helps individuals and businesses declare their earnings and claim deductions or refunds if they have paid extra tax. Filing ITR is mandatory for those who meet the income criteria set by the tax department. It ensures compliance with tax laws and helps in avoiding penalties. A filed ITR serves as proof of income which is useful for loans and visa applications. The process is now easy and can be done online through the official Income Tax Department portal.

Steps to Use a Digital Signature Certificate for ITR Filing

Let us discuss the steps to use a digital signature for ITR filing:

  • Obtain a Digital Signature Certificate (DSC)

You need to acquire a DSC from a Certifying Authority (CA) authorized by the Controller of Certifying Authorities (CCA) in India. These authorities are listed on the CCA website, so ensure you choose a DSc that is valid for Income Tax e Filing purposes.

  • Install the DSC Utility

After obtaining the DSC, install the necessary drivers and the eMudhra utility (emSigner) on your computer. This utility facilitates the use of your DSC during the e-filing process. You can then download the emSigner utility from the Income Tax e-Filing portal.

  • Register Your DSC on the e-Filing Portal

Before using your DSC for e-filing, you must register it on the Income Tax e-filing portal:

  • Log in to the e-filing portal using your credentials
  • Go to the ‘My Profile’ and select ‘Register DSC’.
  • Enter the email ID linked with your DSC token.
  • Ensure the emSigner utility is running on your system
  • Select your certificate and click on the ‘Sign’ to complete the registration.
  • Prepare and Submit Your ITR

Once your DSC is registered, follow the below mentioned steps:

  • Prepare your ITR using the appropriate method, which can be online or offline.
  • During the submission, choose the ‘e-verify using DSC’ option.
  • Ensure the emSigner utility is active.
  • Select your DSC from the list and proceed to sign and submit your return.
  • Confirmation of Submission

After successfully submitting, you'll receive an acknowledgment on the portal and via your registered email. This will confirm that your ITR has been filed and verified using your DSC.

  • Validity: Regularly check the validity of your DSC. If it has expired, renew it to avoid any disruptions. ?
  • System Compatibility: Ensure your operating system and browser are compatible with the emSigner utility. Administrative rights may be required for installation.
  • Support: For technical assistance, refer to the DSC Management Utility User Manual or contact the e-Filing helpdesk.

Who Needs a Digital Signature Certificate for Income Tax Return Filing?

An individual who files a personal tax return may not always need a DSC, but certain taxpayers are required to use it for ITR filing:

  • Individuals and Professionals with Audited Accounts

If a person’s annual income is above Rs. 25 lakhs or more and their accounts need an audit under Section 44AB of the Income Tax Act, they must use a DSC for e-filing their tax returns. This includes professionals such as lawyers, doctors, and business owners with a high annual turnover.

  • Companies and Limited Liability Partnerships (LLPs)

All companies and LLPs must file their income tax returns using a DSC, as it is mandatory for private limited companies, public limited companies, and LLPs to verify their ITR digitally and ensure its security and authenticity.

  • Individuals Filing on Behalf of Others

An authorized representative, such as a consultant or chartered accountant who files ITR on behalf of their clients, needs a DSC to ensure the accuracy and legitimacy of the filing. Using a DSC makes the process secure, fast, and paperless, which ensures compliance with tax regulations and eliminates the need for physical signatures or hard copies.

Benefits of Using a DSC for ITR Filing

The following details include the benefits of using a DSC for ITR filing:

  • Mandatory for Businesses and Audit Cases: If you are a company, LLP, or an individual whose accounts require an audit under the tax laws, it is mandatory to use a DSC. This ensures proper compliance and adds credibility to the filing process. It also establishes tax return verification for businesses and professionals with higher income or large transactions.
  • Enhanced Security and Authenticity: A DSC provides a high level of security as it encrypts the data and ensures that your ITR is filed without any risk of forgery or unauthorized access. It helps in confirming that the return is being filed by the authorized individual, which makes it legally valid and tamper-proof.
  • Faster and Paperless Tax Filing Process: Filing your ITR with a DSC makes the process quicker and eliminates the need for physical paperwork. You don’t have to print, sign or send the documents manually since the return is digitally signed. This helps in saving time and effort while also ensuring that your filing is completed without any delays.
  • Avoids Manual Verification with ITR-V: After filing an ITR online the individuals need to manually verify it by sending a signed ITR-V (Income Tax Return Verification) to the tax department. With a DSC this is not necessary or required as the return is automatically verified and accepted.

Common Errors and Solutions for Using a DSC for ITR Filing

The following details include the common errors and troubleshooting while using a DSC for ITR filing, and how to fix them:

DSC Not Getting Detected

One of the most common issues is that the IT portal does not recognize your DSC. Here’s what you can do:

  • Reconnect the USB Token: Remove the DSC USB token and plug it back in.
  • Install the Required Drivers: Your DSC comes with a driver that must be installed. You can download it from the certifying authority’s website.
  • Update Java Settings: The Income Tax e-Filing portal requires Java to function properly. Make sure you have the latest version installed from Java’s official website.
  • Run the emSigner Utility: This is a required software for DSC validation. Download and start it from the Income Tax portal before signing.

Mismatch Errors between DSC and PAN

If you receive an error stating that DSC details do not match with PAN, try the following:

  • Check Your DSC Registration: Your DSC should be properly registered on the Income Tax e-Filing portal under ‘My Profile > Register DSC’.
  • Ensure Correct PAN Details: The name and PAN number on your DSC should match exactly with the details on the IT portal.
  • Select the Right DSC: If you have multiple DSCs, ensure you’re using the one linked to your PAN.

Expired DSC: Renew It before Use

  • Check DSC Validity: DSCs are usually valid for 1-2 years. If expired, it won’t work.
  • Renew the DSC: Contact your certifying authority to get it renewed.
  • Re-register the New DSC: After renewal, update it under ‘My Profile > Register DSC’ on the Income Tax Portal.

Using a DSC makes the process of filing ITR faster, safer, and more convenient. It eliminates the need for physical and ensures secure authentication. To avoid errors always check that your DSC is valid and properly registered on the Income Tax e-Filing portal. An expired or unregistered DSC can cause issues during filing.

With a valid DSC, you can file your tax returns hassle-free while ensuring secure digital verification, reducing paperwork, and making the process smooth and efficient. This article provided you with all the details you need to know about using a digital signature for income tax return filing. Visit Online Legal India to get assistance from our professional experts.


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