Get your GSTIN in 5–7 working days — required for grant disbursement
GST registration gives your business a GSTIN, a 15-character number that lets you charge GST, issue tax invoices and claim credit for GST paid on your purchases. It is done on the GST portal, gst.gov.in, and the government charges nothing for it.
You are not always required to register. Whether you must depends on your turnover, what you sell, where you sell it and how you sell it. Registering when you do not need to can add monthly filings you could have avoided. Not registering when you must can lead to penalties.
This guide helps you work out which side of that line you are on, and then walks through the application.
Last reviewed against the official sources below on 22 October 2026.
A supplier of goods whose aggregate turnover in a financial year goes above 40 lakh rupees, and a supplier of services whose turnover goes above 20 lakh rupees. Lower limits apply in some special category states.
Certain businesses must register whatever their turnover, including those who supply goods from one state to another, casual taxable persons, those who must pay tax under reverse charge, and e-commerce operators. Sellers on e-commerce platforms often need a GSTIN as well.
Anyone who wants to register voluntarily, for example to give business customers input tax credit or to open marketplace and enterprise accounts that ask for a GSTIN.
Aggregate turnover is calculated across India, for the same PAN, so a business with units in several states adds them together.
Check that you need to register
Compare your expected turnover with the limits above, and check the cases where registration is compulsory regardless of turnover. If you are unsure, ask before applying.
Part A: get a Temporary Reference Number
On the GST portal choose Register Now, enter the PAN, email and mobile number, and verify each by OTP. The portal issues a Temporary Reference Number (TRN).
Part B: fill in the application (Form REG-01)
Log in with the TRN. Enter business details, promoters or partners, the principal place of business, goods and services with their HSN or SAC codes, and bank details.
Upload documents
Add the proofs from the checklist below. Use clear scans and make names and addresses match across documents.
Authenticate and sign
Verify the application with Aadhaar authentication where it is offered, and sign with a digital signature certificate (companies and LLPs) or an e-signature or EVC (others).
Note the ARN and respond to any query
On submission the portal gives an Application Reference Number (ARN). Track it on the portal. If the officer needs clarification they raise it online; reply within the time given.
Receive the GSTIN and certificate
When approved you receive the registration certificate and GSTIN. Display the certificate at your place of business and add the GSTIN to your invoices.
The rules set short windows for the officer to act, and they are shorter when Aadhaar authentication is completed. We do not promise a number of days because the officer can ask for clarification, and every query restarts part of the clock. A clean application with matching documents and a verifiable address is the best way to avoid queries.
| Business type | Identity and constitution | Address and bank proof |
|---|---|---|
| Proprietorship | PAN, Aadhaar and photo of the proprietor | Electricity bill or property tax receipt; rent agreement with owner's consent if rented; cancelled cheque or bank statement |
| Partnership firm | Partnership deed, PAN of the firm, PAN, Aadhaar and photos of partners | Same address and bank proofs; authorisation letter for the signatory |
| LLP | Certificate of incorporation, LLP agreement, PAN of the LLP, details of designated partners | Same proofs; board or partner authorisation and a digital signature certificate |
| Private Limited company | Certificate of incorporation, MoA and AoA, PAN of the company, directors' PAN and Aadhaar | Same proofs; board resolution authorising the signatory; digital signature certificate |
| Regular scheme | Composition scheme | |
|---|---|---|
| Who it suits | Most businesses, especially B2B | Small suppliers who mainly sell to consumers |
| Input tax credit | Allowed | Not allowed |
| Tax invoice | Standard tax invoice with GST charged | Bill of supply; you cannot charge GST separately |
| Returns | Monthly or quarterly, depending on the scheme chosen | Simplified, with a lower filing load |
| Inter-state sales | Allowed | Generally not allowed under the composition scheme |
| Eligibility | Any registered person | Subject to turnover limits and conditions; check the portal |
Rules and portals change. Confirm fees and form versions on the official site before you pay or file.
Professional Fees
GST registration
One-time; government filing fee is nil
* Government fees may vary. GST applicable on professional fees. Final pricing confirmed after review.
No. Registration on the GST portal is free. Third parties may charge to prepare your application.
A supplier of goods must register once aggregate turnover in a financial year exceeds 40 lakh rupees, and a supplier of services once it exceeds 20 lakh rupees. Lower limits apply in some special category states. Confirm the current figures on gst.gov.in.
Sellers who supply through e-commerce operators may have to register even below the turnover limit, and platforms usually ask for a GSTIN. The exact rule depends on what you sell and where, so check the current notification for your case.
No. You need a principal place of business, with proof of the right to use it. Home addresses can work if you have the owner's consent and a recent utility bill.
The rules fix short windows for the officer to act, and the timing is faster when Aadhaar authentication is done. A query from the officer resets part of the process, so the answer depends on your application.
A 15-character number that identifies your business for GST in a given state. It includes your PAN.
You need a registration in each state from which you supply, or where you have a place of business. Selling into a state does not by itself require a registration there.
An optional scheme with simpler returns for small suppliers, in exchange for giving up input tax credit and the ability to charge GST. Eligibility depends on turnover and other conditions; check the portal.
GST Registration
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