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Digital Signature Certificate for Income Tax e-Filing

A Class 3 DSC lets you sign your Income Tax Return, tax audit reports, and responses to notices electronically on incometax.gov.in — and it's mandatory, not optional, for companies, LLPs, and anyone whose accounts require a tax audit. Get your DSC issued and registered on the income tax portal in hours.

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About

Why Income Tax e-Filing Needs a DSC

The Income Tax Department allows returns and forms to be verified either through Aadhaar OTP / EVC or through a registered Digital Signature Certificate. For certain categories of taxpayers, using a DSC isn't a matter of convenience — it's a statutory requirement under the e-filing rules.

Legally equivalent to a wet signature

A Class 3 DSC gives your electronically filed return, audit report, or reply to a notice the same legal standing as a physically signed and stamped document, as recognised under the Information Technology Act, 2000.

One-time registration, ongoing use

Once your DSC is registered against your PAN on the income tax e-filing portal, you can reuse it every assessment year — for ITR filing, audit reports, and any notice responses — until the certificate expires.

Who Must Use DSC

Is DSC Mandatory for Your Filing?

DSC-based verification is compulsory for some categories of taxpayers, and optional (in place of Aadhaar OTP/EVC) for others.

Mandatory

Companies filing ITR-6

Every company is required to verify its Income Tax Return using a Class 3 DSC — Aadhaar OTP/EVC is not an available option.

Mandatory

Taxpayers liable to tax audit

Individuals, firms, and LLPs whose accounts require a tax audit under Section 44AB must verify their return and audit report with a DSC.

Mandatory

Political parties & certain trusts

Political parties and specified trusts/institutions filing returns under audit provisions are also required to use DSC-based verification.

Optional

Individual taxpayers (not under audit)

Salaried individuals and other taxpayers not liable to audit can e-verify via Aadhaar OTP or net banking, or choose to sign digitally with a DSC instead.

Use Cases

Where You'll Use Your DSC on the Income Tax Portal

ITR Verification
Digitally sign and submit your Income Tax Return instead of using Aadhaar OTP or EVC.
Tax Audit Reports (Form 3CA/3CB-3CD)
Chartered accountants use their DSC to sign and upload tax audit reports on behalf of clients.
Responding to Notices
Sign your reply while responding to scrutiny notices or e-Assessment proceedings under faceless assessment.
High-Value Transaction Disclosures
Sign forms and disclosures related to high-value transactions reported under the Annual Information Statement (AIS).
TDS / TCS Returns
Deductors use a DSC to sign and file quarterly TDS/TCS statements on the TRACES-linked portal.
Form 15CA/15CB Filings
Sign remittance certificates and declarations required for foreign payments and cross-border transactions.
Process

How to Register Your DSC on the Income Tax Portal

1
Get Your DSC Issued
Complete Aadhaar eKYC and get your Class 3 Individual or Organisation DSC loaded on a USB token.
2
Install emSigner Utility
Download and install the income tax portal's signing utility on the computer where the token will be used.
3
Register on incometax.gov.in
Log in, go to My Profile → Register DSC, and select your certificate from the connected token.
4
Sign & Submit
Your DSC is now linked to your PAN and ready to sign returns, audit reports, and notices each year.
Pricing

DSC Pricing for Income Tax Filing

Individuals and CAs typically need an Individual DSC; companies and LLPs need an Organisation DSC. All plans include a USB crypto token and Aadhaar eKYC verification.

Sign Individual DSC

₹999

1 Year — Without Token

  • For individual taxpayers & CAs
  • 2 Year: ₹1,200 · 3 Year: ₹1,700
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For Companies

Sign Organisation DSC

₹999

1 Year — Without Token

  • Mandatory for ITR-6 company filings
  • 2 Year: ₹1,200 · 3 Year: ₹1,700
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With Token Pricing

₹1,599

1 Year — Includes USB Token

  • For first-time applicants without a token
  • 2 Year: ₹1,800 · 3 Year: ₹2,300
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See full pricing including Combo (Sign + Encrypt) certificates on our complete price list.

Checklist

Documents Required

For Individuals & CAs

  • Aadhaar Card & PAN Card
  • Registered Mobile Number (linked to Aadhaar)
  • PAN registered on the income tax e-filing portal

For Companies & LLPs

  • Certificate of Incorporation & Organisation PAN
  • Authorization Letter naming the signing director
  • Director's Aadhaar & PAN for eKYC
FAQ

Frequently Asked Questions

It depends on your taxpayer category. Companies and taxpayers liable to tax audit must use DSC; other individuals can choose between DSC, Aadhaar OTP, or net banking-based e-verification.
You won't be able to sign with an expired certificate, so it's best to renew before expiry — especially ahead of filing deadlines when demand for issuance is high.
Yes — the portal requires the emSigner utility to be installed on your computer so it can detect your USB token and complete the signing process in the browser.
Yes — the same Class 3 Individual or Organisation DSC can be registered and used across GSTN, the income tax portal, and MCA21, as long as your PAN matches on each platform.
Yes — a CA's own Individual DSC can be used to digitally sign audit reports and forms across all clients they're registered as a chartered accountant for on the portal.
Once your DSC is issued, registering it on the portal takes just a few minutes — it's a one-time process per certificate, and we can walk you through it if needed.

Ready to File With a DSC?

Get your Class 3 DSC issued and registered on the income tax portal — no paperwork, no office visit.