Is Digital Signature (DSC) mandatory for filing Income Tax Returns (ITR)?

Yes, Class 3 DSC is legally mandatory for Companies, LLPs, Political Parties, and Individuals whose accounts are required to be audited under section 44AB of the Income Tax Act.

Which DSC is required for Income Tax filing: Individual or Organisation?

For Individual taxpayers, Sole Proprietors, and Tax Audit cases, a Class 3 Individual DSC (Signing) is used. For Companies and LLPs, a Class 3 Organisation DSC issued to the Authorised Signatory is required.

How does emBridge work with the Income Tax e-Filing portal?

The Income Tax 2.0 portal uses emBridge software to communicate with your USB Crypto Token. You must install the DSC USB token driver and the Income Tax emBridge utility to register your certificate.

100% Income Tax Portal 2.0 & emBridge Compatible

Class 3 DSC for Income Tax e-Filing & Tax Audit

Statutory digital signatures for tax audit filings under Section 44AB and corporate ITR returns. Get instant paperless Aadhaar eKYC approval in 15 minutes with pre-configured emBridge and token driver support.

Tax Audit Sec 44AB Compliant

Aadhaar & PAN Instant eKYC

FIPS 140-3 Hardware Token

Free emBridge Setup Assistance

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Instant Support

Apply for ITR DSC

Get your certificate issued & registered in minutes.

Income Tax Compliance

Which DSC Do You Need for Income Tax Portal?

For Individuals & Tax Audits

Class 3 Individual DSC

Mandatory for individual taxpayers with business turnover exceeding audit limits under Section 44AB, HUFs, partners, and CAs uploading audit forms.

Paperless Aadhaar OTP & quick video verification
Valid for ITR-1 to ITR-4 and Tax Audit Form 3CA/3CB
Available in 1, 2, or 3 Years validity options

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Mandatory for Companies & LLPs

Class 3 Organisation DSC

Statutory requirement for filing corporate income tax returns (ITR-5, ITR-6, and ITR-7) by Private Limited, Public Limited, OPC, and LLP entities.

Mandatory for Corporate Tax return filing
Issued in Authorised Signatory name with Company details
Multi-portal use: also valid on MCA V3 & GSTN

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Income Tax Portal 2.0 Setup

How to Register Your DSC on the Income Tax Portal

Install USB Token Drivers & emBridge: Plug in your crypto token and ensure the latest emBridge Income Tax utility is installed and running on your system.
Login to Income Tax Portal: Visit incometax.gov.in and login using your PAN.
Navigate to Register DSC: Go to your profile menu at top right ➔ select Register DSC.
Select Provider: Check the box I have downloaded and installed emBridge ➔ click Continue.
Choose Certificate & Sign: Select your Certificate Provider and Certificate from the dropdown, enter your token PIN, and click Sign. You will receive an instant success confirmation.

Direct CA Support

Need Help with Income Tax DSC or emBridge?

Care4Sign support engineers are available on WhatsApp and phone for instant installation help.

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