GST Registration Online in India
Get your GSTIN hassle-free. We handle the complete GST registration process — document preparation, filing on the GST portal, Aadhaar authentication, and follow-up until your certificate is issued.
What is GST Registration & Who Needs It?
GST (Goods and Services Tax) registration is the process by which a business obtains a GSTIN (GST Identification Number) — a unique 15-digit alphanumeric code that authorises the business to collect GST from customers, claim Input Tax Credit (ITC) on purchases, and file GST returns with the government.
Registration is governed by Section 22 to 25 of the CGST Act, 2017. Any business whose aggregate turnover in a financial year exceeds the prescribed threshold limit is legally required to register under GST. Aggregate turnover is calculated on an all-India basis — not state-wise — and includes taxable supplies, exempt supplies, exports, and inter-state supplies of the same PAN.
Voluntary registration is also permitted — and often beneficial — even if you are below the threshold, particularly if your clients are GST-registered businesses who require a valid GSTIN from you for ITC claims.
GST Registration Threshold Limits
| Category of Supplier | Regular States & UTs | Special Category States |
|---|---|---|
| Supplier of Goods only | ₹40 Lakh | ₹20 Lakh |
| Supplier of Services only | ₹20 Lakh | ₹10 Lakh |
| Supplier of Goods & Services (mixed) | ₹20 Lakh | ₹10 Lakh |
GST State-Wise Reference Map
Switch between three views to compare states across Registration Thresholds, Composition Levy limits, and Special Category classification. Click any state for full details and a direct registration CTA.
Mandatory GST Registration — Regardless of Turnover
Certain persons are required to obtain GST registration compulsorily under Section 24 of the CGST Act, 2017, even if their aggregate turnover is below the threshold limit:
Inter-State Suppliers of Goods
Any person supplying taxable goods from one state to another must register, regardless of turnover. (Note: Inter-state supply of services is exempt from mandatory registration if below the threshold.)
E-Commerce Operators
Operators of electronic commerce platforms (Amazon, Flipkart, Meesho, etc.) who collect tax at source under Section 52 must mandatorily register, irrespective of turnover.
Sellers on E-Commerce Platforms
Persons supplying goods/services through an e-commerce operator who is required to collect TCS (Tax Collected at Source) under Section 52 must register. Exceptions apply for certain notified services.
Casual Taxable Persons
Persons who occasionally undertake supply of goods/services in a state where they have no fixed place of business must register before commencing supply. Registration valid for 90 days (extendable).
Non-Resident Taxable Persons
Non-residents supplying goods/services in India must register before commencing supply. They must deposit estimated tax liability in advance and registration is valid for 90 days.
Reverse Charge Mechanism (RCM) Recipients
Persons required to pay tax on inward supplies under RCM (Section 9(3) and 9(4) of CGST Act) must register. Common examples: advocates, GTA services, import of services, security services.
Input Service Distributor (ISD)
An office of a supplier that receives common invoices for input services and distributes the ITC to branch offices or units. ISD registration is separate from regular GSTIN and is mandatory.
TDS Deductors under GST
Government departments, local authorities, and specified PSUs required to deduct TDS under Section 51 of CGST Act must register separately, even if already GST-registered as a regular taxpayer.
OIDAR Service Providers (Non-Residents)
Non-resident persons providing Online Information Database Access and Retrieval (OIDAR) services — such as cloud software, digital content, or online platforms — to recipients in India must register.
How GST Registration Works
GST registration is a completely online process on the GST Portal (gst.gov.in). Here is the end-to-end process, managed entirely by GCA on your behalf:
Document Collection & Preparation
Share your documents with GCA via our secure portal or WhatsApp. We check, organise, and ensure all documents are in the correct format, file size, and legible quality as required by the GSTN portal — avoiding rejection at source.
Filing Form GST REG-01 on the GST Portal
We fill and submit Form GST REG-01 on your behalf. This includes business details, principal place of business (PPOB), additional places of business, nature of business (goods/services/both), bank account details, and authorised signatory information.
Important: The nature of supply selected at registration must match your actual business activity. Incorrect selection can lead to SCN (Show Cause Notice) from the GST officer.
Aadhaar Authentication (OTP Verification)
After filing REG-01, the GSTN sends an Aadhaar authentication link to the registered email and mobile of the applicant/authorised signatory. This link must be opened from the same email it is sent to — it cannot be forwarded.
Complete the OTP verification promptly. This step is critical — successful Aadhaar authentication reduces the processing timeline from 30 days to 7 working days.
ARN Generation & Application Tracking
Once Aadhaar is authenticated, the GSTN generates an Application Reference Number (ARN) — sent to your registered email and mobile. The ARN is used to track the status of your registration application on the GST portal. GCA monitors the ARN status on your behalf and keeps you informed at every stage.
GST Officer Review & Clarification (if required)
The application is reviewed by the jurisdictional GST Officer. If any clarification is sought, a notice is issued on the portal. Clarification must be filed within 7 working days of the notice date. GCA handles all officer queries and prepares clarification responses on your behalf.
Common queries: Mismatch in address proof, nature of business, HSN code selection, or additional verification of documents.
GSTIN Issued — Registration Approved ✓
Upon approval, the GST Registration Certificate in Form GST REG-06 is issued and your GSTIN is generated. Login credentials are emailed to the applicant. You must display your GSTIN at all places of business. GCA provides post-registration guidance on next steps — first return, HSN selection, and return filing schedule.
Understanding Your ARN Status
After filing Form GST REG-01 and completing Aadhaar authentication, you receive an ARN (Application Reference Number). Track your registration status at gst.gov.in using this ARN. Here is what each status means:
| Status | Meaning | Action Required |
|---|---|---|
| Pending for Processing | Application submitted successfully and is awaiting review by the Tax Officer. | No action needed. Wait for officer to process. |
| Pending for Clarification | Tax Officer has issued a Notice for Clarification (Form GST REG-03) seeking additional information or documents. | File clarification within 7 working days from the notice date on the GST portal using GST REG-04. GCA handles this for you. |
| Clarification Filed — Pending for Order | Clarification submitted by applicant. Application is now under review by the Tax Officer for a decision. | No action needed. Awaiting officer's order. |
| Clarification Not Filed — Pending for Order | Clarification was not filed within 7 working days. Application may be rejected. | Urgent — Contact GCA immediately. Officer may still have discretion before rejection. |
| Approved | Application approved. GSTIN and Form GST REG-06 (Registration Certificate) generated. Login credentials emailed to applicant. | Log in to GST portal. Display GSTIN at place of business. Begin GST return filing. |
| Rejected | Application rejected by Tax Officer citing reasons mentioned in the rejection order. | Review rejection order. Re-apply with corrected information and documents. Contact GCA to assess and re-file. |
Documents Required for GST Registration
All documents are to be submitted as scanned copies in the format prescribed by the GSTN portal — legible (readable), correct file size, and accepted formats (JPG, PDF). GCA verifies all documents before submission to prevent SCN (Show Cause Notice) or rejection.
Click on the entity type below to expand the document checklist.
Finding Your Tax Jurisdiction for GST Registration
Identifying the correct tax jurisdiction is one of the most confusing steps in GST registration. Two jurisdictions are required to be entered in Form GST REG-01 — Centre jurisdiction and State jurisdiction.
Central Jurisdiction
The Centre jurisdiction is based on the PIN code of your Principal Place of Business and is allocated by CBIC (Central Board of Indirect Taxes and Customs). Finding the correct Central jurisdiction from the CBIC portal can be time-consuming.
We have compiled a comprehensive list of All India Central GST Jurisdictions to simplify this for you:
📄 Download All India GST Jurisdiction List (.xlsx)State Jurisdiction
The State jurisdiction is determined by the state-level tax administration of the state where your Principal Place of Business is located. Each state has its own portal or directory for jurisdiction lookup.
For Delhi businesses — the jurisdiction is managed by the Delhi State GST Department (DSGST). You can look up your Circle and Ward from the DSGST portal using your PIN code or address.
GCA identifies both Central and State jurisdictions for all our clients as part of the GST registration process — you do not need to do this yourself.
Why Choose GCA for GST Registration?
Hundreds of businesses across India have registered under GST through GCA. We do not just fill a form — we ensure the registration is done right the first time.
Document Verification Before Filing
We review all documents for legibility, size, and completeness before submission. Blurry or incorrectly formatted documents are the #1 cause of GST registration rejection — we eliminate this risk.
Correct HSN/SAC Code Selection
Selecting the correct HSN (goods) or SAC (services) code is critical — it determines your GST rate and return compliance. GCA identifies the correct codes for your business activity.
Jurisdiction Identification
Both Centre and State jurisdiction correctly identified — including for businesses in Delhi NCR, where jurisdiction mapping is complex. No incorrect jurisdiction errors.
Officer Query Handling
If a clarification notice is issued, we respond on your behalf with the correct documents and explanation — well within the 7-working-day deadline. You are never left to face an officer query alone.
Pan-India Registration
We handle GST registration across all states and union territories. Multi-state registration (separate GSTIN per state) also managed centrally through GCA for businesses with operations in multiple states.
Post-Registration Support
After GSTIN is issued, GCA guides you on GSTR-1, GSTR-3B return schedule, e-invoicing applicability, e-way bill setup, and ITC utilisation — ensuring you start GST compliance on the right foot.
Once registered, you must file GSTR-1 and GSTR-3B monthly/quarterly. GCA manages your complete GST return filing — GSTR-1, GSTR-3B, GSTR-2B reconciliation, GSTR-9, and GSTR-9C.
Frequently Asked Questions — GST Registration
Is GST registration mandatory for a small business with turnover below ₹40 lakh? +
If your aggregate turnover is below ₹40 lakh (for goods) or ₹20 lakh (for services) and you do not fall under any of the mandatory registration categories under Section 24 of the CGST Act, registration is not compulsory. However, voluntary registration is often advisable — it allows you to collect GST, claim ITC on business purchases, and supply to GST-registered businesses without them losing ITC. Many B2B clients require a GSTIN from their vendors.
Can I have more than one GSTIN on the same PAN? +
Yes. A separate GST registration is required for each state where you have a place of business. A business operating in Delhi and Mumbai will have two GSTINs on the same PAN — one for Delhi and one for Maharashtra. Within the same state, a person may also register multiple business verticals separately if needed. GCA handles multi-state GST registrations.
What is the Aadhaar authentication link and why is it important? +
After submitting Form GST REG-01, the GSTN sends a verification link to the registered email and mobile number of the applicant or authorised signatory. This link must be opened from the same email it was sent to — it cannot be forwarded. Successful OTP verification completes Aadhaar authentication and reduces your processing time from 30 days to 7 working days. Without it, the officer may visit your business premises for physical verification, which significantly delays approval.
What is a GSTIN and what does it look like? +
A GSTIN (GST Identification Number) is a 15-character alphanumeric code structured as:
[2-digit State Code] + [10-digit PAN] + [1-digit Entity Number] + [Z] + [1 Check Character]
Example: 07AABCG1234A1Z5 — where 07 is Delhi's state code. Every GST-registered taxpayer must display their GSTIN at all places of business and mention it on all tax invoices.
What returns must be filed after GST registration? +
After registration, you must file at a minimum: GSTR-1 (outward supply details — monthly or quarterly), GSTR-3B (monthly summary return and tax payment), and GSTR-9 (annual return). If you opt for the QRMP scheme (turnover up to ₹5 crore), filing frequency is reduced. Composition dealers file CMP-08 quarterly and GSTR-4 annually. GCA manages all these returns — see our GST Return Filing service.
Can I cancel my GST registration if my turnover falls below the threshold? +
Yes. If your aggregate turnover falls below the mandatory threshold and you no longer meet any of the mandatory registration criteria under Section 24, you may apply for cancellation of GST registration by filing Form GST REG-16 on the portal. However, you must file all pending returns and pay all outstanding dues before cancellation is granted. GCA assists with GST registration cancellation as well.
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