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GST Guide
Companies and LLPs are legally required to sign GST returns and applications with a DSC. Here's the registration process.
You'll need a Class 3 DSC on a USB token (Class 2 has not been accepted for GST signing since January 2021), and the emSigner utility installed, this is GST's dedicated signing middleware, separate from what MCA or Income Tax use.
Do this once per DSC, before your first signing attempt.
Navigate to your profile page after logging in.
This opens the DSC registration page.
Choose the PAN that matches the person whose DSC you're registering, this must match the DSC exactly.
Download it from the GST portal's Register DSC page if prompted, and install it, running as administrator.
Plug in your DSC token, select your certificate in the emSigner window, and confirm.
The single most common reason GST DSC registration fails is a PAN mismatch, the PAN embedded in your DSC must exactly match the authorized signatory's PAN on your GST registration. If they don't match, correct your GST registration details or use the correct signatory's DSC before trying again.
We issue Organization DSCs for authorized signatories, correctly matched to your PAN for GST registration.
DSC is mandatory for companies and LLPs. Other taxpayer types can typically use Aadhaar-based e-Sign instead, though DSC is also accepted.
Confirm you're using the correct authorized signatory's DSC, and that the PAN on your GST registration matches the DSC exactly, correct either side as needed.
Yes, register your renewed DSC on the GST portal again using the same Register/Update DSC process.