How to Register for GST in India
Apply for a GSTIN through the GST Common Portal — eligibility thresholds, Aadhaar authentication, document checklist, and how the application is processed by your jurisdictional officer.
- Last verified
- 21 June 2026
- Official site
- gst.gov.in ↗
GST registration in India is mandatory once your aggregate turnover crosses the threshold (₹40 lakh / ₹20 lakh / ₹10 lakh depending on state and supply type), or if you make inter-state supplies or sell via e-commerce platforms — regardless of turnover.
Registration runs entirely on the GST Common Portal (gst.gov.in). The process has two parts: Part A generates a Temporary Reference Number (TRN); Part B is the full application with business details, place of business, bank account, and authorised signatory.
Aadhaar authentication by the authorised signatory is the single biggest accelerator — without it, the officer can demand a physical verification of your premises, adding days or weeks to the approval.
Once approved, your GSTIN is issued and the Certificate (GST REG-06) is downloadable from the portal.
Eligibility
- Your aggregate turnover exceeds the prescribed threshold (₹40 lakh / ₹20 lakh / ₹10 lakh depending on state and supply type).
- You make inter-state supplies, are an e-commerce operator, or supply via an e-commerce platform — registration is mandatory regardless of turnover.
- You voluntarily want to register (composition / regular).
Required documents
PAN of business / individual
GST registration is PAN-based.
Aadhaar of the authorised signatory
Used for Aadhaar authentication — speeds up registration significantly.
Proof of business registration
Partnership deed, Certificate of Incorporation, LLP agreement, or trust deed, depending on entity type.
Proof of principal place of business
Rent agreement + electricity bill, property tax receipt, or ownership document.
Bank account details
Cancelled cheque, bank statement, or first page of passbook showing IFSC + account number.
Photograph of authorised signatory
Passport-size colour photo.
DSC or e-Sign
Digital Signature Certificate (mandatory for companies and LLPs) or Aadhaar e-Sign (allowed for proprietors / partnerships).
Step-by-step process
- 1
Open the GST portal
Go to gst.gov.in and choose 'Services → Registration → New Registration'.
gst.gov.in ↗ - 2
Fill Part A of the application
Enter PAN, mobile, email, state. Receive an OTP on mobile and email.
- 3
Receive Temporary Reference Number (TRN)
After Part A, you'll get a TRN. Use it to log back in and complete Part B.
- 4
Fill Part B
Enter business details, principal place of business, additional places, goods / services offered (HSN / SAC codes), bank details, and authorised signatory.
- 5
Complete Aadhaar authentication
Authorised signatory authenticates with Aadhaar OTP. Without Aadhaar, the officer may insist on physical verification of premises.
- 6
Upload all supporting documents
Upload PAN, address proofs, photographs, business registration, bank details.
- 7
Submit and sign with DSC / e-Sign
Companies / LLPs must sign with DSC. Others can use Aadhaar e-Sign.
- 8
Application Reference Number (ARN)
On submission, you receive an ARN. Track the status under 'Services → Registration → Track Application Status'.
- 9
Receive GSTIN
If approved, the GSTIN is issued and a Registration Certificate (GST REG-06) is downloadable from the portal.
Official website
Always confirm critical details here
gst.gov.in
Common mistakes
- Mismatch between the business name on PAN and on application — leads to officer query.
- Skipping Aadhaar authentication — invites physical verification by the officer and slows things down.
- Listing the principal place of business without supporting proof in the same name — most queries cite this.
- Selecting the wrong business type / constitution — choose carefully (Proprietorship vs Partnership vs Company).
Frequently asked questions
What is the GST registration threshold?▾
For services it's typically ₹20 lakh aggregate turnover (₹10 lakh in special category states). For goods it's typically ₹40 lakh (₹20 lakh in special category states). Inter-state suppliers and e-commerce participants must register regardless of threshold.
Is Aadhaar authentication mandatory?▾
Strongly recommended. Without it, the officer can ask for physical verification of the premises, which adds days or weeks.
How long does registration take?▾
Typically a few working days if Aadhaar authentication is complete and documents are clean. Longer if the officer raises queries.
Can I register voluntarily below the threshold?▾
Yes. Voluntary registration is allowed and gives you GSTIN even if your turnover is below the threshold.
Disclaimer: This guide is for informational purposes only. Government portals, document requirements, and fees can change without notice. Always verify the latest requirements on the official website before you apply. Last verified on 21 June 2026.