Digital Signature Certificate (DSC)
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Digital Signature Certificate
A Digital Signature Certificate (DSC) is the digital equivalent of a physical signature. It is used to authenticate online transactions, documents, and filings. DSC is issued by licensed Certifying Authorities (CA) under the provisions of the Information Technology Act, 2000 and is legally valid in India.
It ensures security, authenticity, and integrity in digital communication.
Why DSC is Important
- Mandatory for MCA (Company/LLP) filings
- Required for Income Tax & GST filings
- Used for EPFO, Trademark, and IEC registrations
- Securely signs tenders, contracts, and e-auctions
- Prevents identity theft and ensures document integrity
Documents Required for DSC Application
For Individuals
- PAN Card
- Aadhaar Card / Passport / Driving Licence / Voter ID
- Passport size photograph
- Email ID & Mobile number
For Companies/LLPs/Firms
- Certificate of Incorporation / Partnership Deed
- PAN of entity
- Authorization letter from the company
- PAN & ID proof of authorized signatory
Validity of DSC
- DSC is valid for 1, 2, or 3 years, depending on subscription.
- It can be renewed before expiry.
Frequently Asked Questions
How long does it take to get a DSC?
Usually 1–2 working days with complete documents.
Is DSC mandatory for all taxpayers?
No, but it is compulsory for companies, LLPs, and audit cases under Income Tax.
Can DSC be used on multiple websites?
Yes, one DSC can be used for MCA, GST, Income Tax, DGFT, and other portals.
What happens if my DSC expires?
You need to renew it to continue filing. Expired DSC cannot be used.
Can DSC be shared with others?
No, DSC is unique to an individual/company and must be kept secure.