GST registration in Bangalore is mandatory once your business crosses the turnover threshold set under the Central Goods and Services Tax Act, 2017 (CGST Act), broadly ₹40 lakh for suppliers of goods and ₹20 lakh for suppliers of services in Karnataka. Below that limit, registration is voluntary, but many businesses register anyway to claim input tax credit and to trade with larger GST-registered buyers. The application is filed online on the GST portal (gst.gov.in), and a 15-digit GSTIN is normally issued within a few working days once your documents are verified.
Part of the legal advisory and regulatory compliance practice at S Jain & Attorneys, Bangalore.
This guide explains, in plain English, who must register, the current turnover thresholds, the documents you need, the step-by-step online process, and when voluntary GST registration in Bangalore is worth considering. It is general information for business owners in Karnataka, not a substitute for advice on your specific facts.
Who needs GST registration in Bangalore?
Under Sections 22 to 25 of the CGST Act, 2017, a person must register for GST if they make a taxable supply and their aggregate turnover crosses the prescribed threshold, or if they fall into a category that requires registration regardless of turnover.
You generally must register if:
- Your aggregate turnover in a financial year exceeds the threshold (see the next section).
- You make inter-State taxable supplies of goods (Section 24).
- You sell through an e-commerce operator such as Amazon, Flipkart or Swiggy.
- You are an e-commerce operator, a casual taxable person, a non-resident taxable person, or are liable to pay tax under reverse charge.
- You are an input service distributor or an agent supplying on behalf of another.
"Aggregate turnover" is defined in Section 2(6) of the CGST Act. It is computed on an all-India PAN basis, so it adds up the turnover of all your branches across India, not just your Bengaluru office.
Key takeaway. Aggregate turnover is a PAN-level, all-India figure. A Bengaluru consultant who also bills through a small unit in another State is not measured on the Bengaluru billing alone. This is the single most common reason a business discovers, months later, that it crossed the threshold and should have registered.
What is the turnover threshold for GST registration?
Karnataka follows the standard thresholds. Section 22(1) of the CGST Act sets the base figure at ₹20 lakh, with a proviso that permits the Government, on the recommendation of the GST Council and at the request of a State, to raise it to as much as ₹40 lakh for a supplier engaged exclusively in the supply of goods. The figures below reflect the position after the notification that raised the goods threshold to ₹40 lakh from 1 April 2019; the services threshold remains ₹20 lakh.
| Type of supplier | Normal-category States (incl. Karnataka) | Special-category States |
|---|---|---|
| Supplier of goods only | ₹40 lakh | ₹20 lakh |
| Supplier of services (or goods + services) | ₹20 lakh | ₹10 lakh |
A few practical points on the threshold:
- The ₹40 lakh goods limit applies only to a person engaged exclusively in the supply of goods. If you also supply services beyond a small permitted amount, the ₹20 lakh services limit governs.
- Karnataka is a normal-category State, so the higher limits apply here.
- The thresholds do not apply to the compulsory-registration categories under Section 24. For example, inter-State suppliers of goods must register even at ₹1 of turnover.
Because the limits and notification numbers are periodically revised, confirm the current figure for your supply type before you decide.
Common mistake. Assuming the ₹40 lakh figure applies because the business "mainly sells goods". It does not. The higher limit is available only to a supplier engaged exclusively in the supply of goods. A trader who also charges an installation fee, a design charge or a service component has almost certainly moved into the ₹20 lakh bracket, and the department will read the invoices, not the description of the business.
Documents required for GST registration in Bangalore
The exact documents depend on your business structure (proprietorship, partnership, LLP, or company). The portal asks you to upload scanned copies; keep them clear and within the size limits.
| Constitution | Core identity / authority documents | Place-of-business proof | Bank proof |
|---|---|---|---|
| Proprietorship | PAN + Aadhaar of proprietor, photograph | Ownership deed / rent agreement + latest electricity bill or tax-paid receipt; NOC if premises are rented | Cancelled cheque / bank statement / first page of passbook |
| Partnership / LLP | Partnership deed or LLP agreement, PAN of firm, PAN + Aadhaar + photo of partners, authorisation letter / board resolution | Same as above for the principal place of business | Same as above |
| Private / Public Company | Certificate of Incorporation, PAN of company, MOA & AOA, PAN + Aadhaar + photo of directors, board resolution authorising the signatory, DSC of authorised signatory | Same as above | Same as above |
Across all types you will also need:
- A valid mobile number and email for OTP verification.
- A Digital Signature Certificate (DSC), mandatory for companies and LLPs; proprietors and partnerships may instead verify by Aadhaar-based EVC.
- Details of the principal place of business in Bengaluru and any additional places of business.
The GST registration process: step by step
The process is entirely online on gst.gov.in and has two parts: generating a Temporary Reference Number (TRN), then completing the full application.
- Part A, the TRN. Go to gst.gov.in, then Services, then Registration, then New Registration. Select "Taxpayer", choose Karnataka and your district, and enter your legal name (as per PAN), PAN, email and mobile. Verify the OTPs. The portal issues a TRN.
- Part B, the full application (Form GST REG-01). Log in with the TRN and fill the business details: constitution, date of commencement, reason for registration, details of promoters, partners or directors, the authorised signatory, the principal and additional places of business, the goods and services with HSN or SAC codes, and bank details.
- Upload documents. Attach the scanned documents from the table above for each section.
- Verify and submit. Submit using DSC (companies and LLPs) or EVC or e-sign. On submission you receive an Application Reference Number (ARN) to track status.
- Aadhaar authentication. Most applicants now complete Aadhaar authentication, which speeds up approval. If you do not authenticate, the application may be routed for physical verification of the premises.
- Processing by the officer. The proper officer examines the application. If satisfied, registration is granted. If clarification is needed, Form GST REG-03 is issued and you respond in Form GST REG-04.
- GSTIN issued. On approval, a 15-digit GSTIN and the registration certificate (Form GST REG-06) are made available on the portal.
Timelines (verify the current rules, as they have changed): broadly, where Aadhaar authentication is completed and the application is not flagged, registration is processed within about 7 working days; cases requiring physical verification or where Aadhaar is not authenticated can take longer, around 30 days. The exact periods are prescribed under the CGST Rules, 2017, notably Rule 9, and have been amended several times to add risk-based verification, so confirm the period applicable on your date of filing.
Deadline warning. Section 25(1) of the CGST Act requires a person liable to register under Section 22 or Section 24 to apply within thirty days of becoming liable, and a casual taxable person or non-resident taxable person to apply at least five days before commencing business. Miss it and Section 122(1)(xi) exposes you to a penalty of ₹10,000 or an amount equal to the tax evaded, whichever is higher, on top of the tax and interest. The thirty days run from the date you crossed the threshold, not from the date your accountant noticed.
Voluntary GST registration: should you register before the threshold?
A business below the threshold can opt for voluntary registration under Section 25(3) of the CGST Act. Once registered, a voluntary registrant is treated like any other registered person, meaning the same return-filing and compliance obligations apply.
| Register voluntarily | Stay unregistered (below threshold) | |
|---|---|---|
| Input tax credit | Can claim ITC on purchases | Cannot claim ITC |
| Selling to GST-registered buyers | Easier, because buyers get ITC on your invoices | Buyers may avoid you (no ITC) |
| E-commerce / inter-State | Required anyway for these | Not permitted for inter-State goods |
| Compliance burden | Must file returns even with nil turnover | No GST returns |
| Perception / credibility | A GSTIN can help with B2B and tenders | May limit B2B reach |
Voluntary registration tends to make sense for B2B suppliers, startups planning to scale quickly, and anyone selling online or across State lines. It is usually less attractive for a small B2C trader who would simply take on filing obligations without a real ITC benefit. Weigh the compliance cost against the commercial upside for your specific business.
Composition scheme: a lighter alternative for small businesses
Small taxpayers within the prescribed turnover limit may opt for the composition scheme under Section 10 of the CGST Act, paying tax at a low fixed rate on turnover with simpler quarterly compliance. But they cannot collect tax from customers or claim input tax credit, and cannot make inter-State outward supplies. The eligibility turnover limit for the composition scheme is set by notification and differs from the registration threshold, so check the current figure before opting in.
Four provisions of the CGST Act decide whether, and how, a Bengaluru business registers.
Section 22 threshold
Registration is required once aggregate turnover crosses the threshold, and that turnover is computed on an all-India PAN basis across every branch.
Section 24 compulsory categories
Certain categories must register regardless of turnover, including inter-State suppliers of goods, e-commerce sellers, casual taxable persons and non-resident taxable persons.
Section 25(3) voluntary registration
A business below the threshold may register voluntarily, and is then treated like any other registered person for return filing and compliance.
Section 10 composition scheme
Small taxpayers within the prescribed limit pay a low fixed rate on turnover, but cannot collect tax from customers or claim input tax credit.
What happens after you get your GSTIN?
Registration is the start, not the end. Once registered you must:
- Display your GSTIN at your principal and additional places of business and on your invoices.
- Issue GST-compliant tax invoices with the correct HSN or SAC codes and tax rates.
- File periodic returns (such as GSTR-1 and GSTR-3B, or the quarterly QRMP scheme for eligible small taxpayers). Even nil returns must be filed.
- Maintain records and reconcile input tax credit with your suppliers' filings.
Late filing attracts late fees and interest, and prolonged non-compliance can lead to suspension or cancellation of registration. Getting the structure and HSN classification right at the outset avoids expensive corrections later, which is where many small businesses benefit from a one-time review of their setup.
Related reading and how we help
If you are setting up or scaling a business in Bengaluru, GST registration usually sits alongside several other early decisions. Our corporate and commercial law practice advises founders on entity structure, contracts and compliance. If a commercial dispute is on the horizon, our explainer on Section 9 of the Arbitration Act: interim relief shows how to protect your interests before the dispute is decided.
You can read the CGST Act, 2017 in full on the Government of India's official portal: India Code, Central Goods and Services Tax Act, 2017. The application itself is filed on the GST portal at gst.gov.in.
Frequently Asked Questions
Is GST registration mandatory for all businesses in Bangalore?
No. It is mandatory only once your aggregate turnover crosses the threshold (₹40 lakh for goods, ₹20 lakh for services in Karnataka) or you fall into a compulsory category under Section 24 of the CGST Act, for example inter-State suppliers of goods or sellers on e-commerce platforms. Below the threshold, registration is voluntary.
What is the turnover threshold for GST registration in Karnataka?
Karnataka is a normal-category State, so the limits are ₹40 lakh for a supplier of goods only and ₹20 lakh for a supplier of services (or a mix of goods and services). These figures can be revised by notification, so verify the current limit for your supply type.
How long do I have to apply once I cross the threshold?
Thirty days from the date you become liable, under Section 25(1) of the CGST Act. A casual taxable person or a non-resident taxable person must apply at least five days before commencing business.
What documents are needed for GST registration?
Broadly: PAN and Aadhaar of the owner, partners or directors, a photograph, proof of the place of business (ownership deed or rent agreement plus a recent electricity bill, and an NOC if rented), a bank proof (cancelled cheque or statement), and constitution documents such as the partnership deed, LLP agreement, or certificate of incorporation with MOA and AOA. Companies and LLPs also need a DSC.
How long does GST registration take?
Where Aadhaar authentication is completed and the application is not flagged for verification, processing is generally around 7 working days. Cases needing physical verification of premises can take longer. Timelines under the CGST Rules have been amended for risk-based checks, so confirm the period applicable on your filing date.
Can I register for GST voluntarily before crossing the threshold?
Yes, under Section 25(3) of the CGST Act. A voluntary registrant can claim input tax credit and trade more easily with GST-registered buyers, but takes on full return-filing obligations even at nil turnover.
What is the difference between the composition scheme and regular registration?
A composition taxpayer (Section 10) pays a low fixed rate on turnover with simpler quarterly compliance but cannot collect GST from customers, cannot claim input tax credit, and cannot make inter-State outward supplies. Regular registration allows ITC and inter-State supply but has standard return obligations.
Do I need a separate GST registration for each State?
Yes. GST is State-specific. If you have a place of business in more than one State, you need a registration in each State, though aggregate turnover is computed on an all-India PAN basis.
What happens if I do not register when I am required to?
Section 122(1)(xi) of the CGST Act makes a person liable to be registered who fails to obtain registration liable to a penalty of ₹10,000 or an amount equivalent to the tax evaded, whichever is higher, and the department can register you on its own motion and recover the tax with interest. It is far cheaper to register on time than to regularise later.
This article is for general informational purposes only and does not constitute legal advice. Laws change and every situation is different; please consult a qualified advocate about your specific matter.
