GST Registration: Who Needs It, and How to Get It

Registration is what turns a business from an outsider to the GST system into a participant in it, able to charge GST, claim Input Tax Credit, and issue valid tax invoices. Whether you need it, and when, depends on turnover and on a separate list of categories where turnover doesn’t matter at all.

GST Compliance

What Is GST? A Complete Guide

GST Registration: Who Needs It, and How to Get It

CGST, SGST and IGST

Composition Scheme

GSTR-1: Reporting Outward Supplies

GSTR-3B

GSTR-9: The Annual Return

Nil Return Filing

Registration requirements and thresholds can be fact-specific and vary by state. This article is for general information and does not constitute tax advice.

Who Must Register: Turnover Thresholds

Registration is driven by aggregate turnover in a financial year, computed on a PAN-India basis across every place of business under that PAN, not state by state: goods suppliers need ₹40 lakh in normal category states (₹20 lakh special category), service providers ₹20 lakh (₹10 lakh special category). Aggregate turnover includes all taxable, exempt, export, and inter-state supplies made under the same PAN, excluding only GST charged and reverse-charge inward supplies.

Who Must Register Regardless of Turnover

Section 24 of the CGST Act lists categories that must register the moment they start operating: inter-state suppliers, casual and non-resident taxable persons, reverse-charge payers, e-commerce operators and most platform sellers, Input Service Distributors, TDS/TCS deductors, agents, and OIDAR suppliers to unregistered recipients in India.

The Registration Process

Registration is filed online as Form GST REG-01, tied to the applicant’s PAN. With Aadhaar authentication completed and no risk flags, approval typically comes within 7 working days under Rule 9 of the CGST Rules; flagged applications can take up to 30 working days. A faster track under Rule 14A (effective 1 November 2025) allows 3-working-day approval for applicants with expected monthly output tax liability up to ₹2.5 lakh. Aadhaar authentication itself must be completed within 15 days of starting the application, or the application is treated as never filed.

Once approved, registration carries a 15-character GSTIN: 2 digits state code, 10 for PAN, 1 entity code, a default 14th character, and a checksum digit.

After Approval: Two Things Worth Diarising

Bank account details must be added within 30 days of GSTIN issue — the most common reason new registrations get automatically suspended. Effective date of registration: if filed within 30 days of crossing the threshold, it’s effective from the liability date; if filed later, it’s effective only from the grant date, meaning supplies made in the gap were technically made without valid registration.

Multiple Registrations and Penalty

A separate registration is needed in every state or UT with a place of business, sales office, or warehouse. Under Section 122(1), failing to register when required attracts a penalty of ₹10,000 or 10% of tax due (whichever is higher), plus tax and interest from the date registration became mandatory; fraud or wilful suppression raises this to ₹10,000 or the full tax due.

FAQs: GST Registration

Why would a business register voluntarily below the threshold?

Mainly to claim Input Tax Credit on purchases, to invoice registered B2B buyers who need that credit passed through, and because many marketplaces and larger clients require a GSTIN before doing business with a supplier.

I have a warehouse in another state but no sales staff there. Do I still need to register there?

Generally yes. Registration is tied to having a place of business in a state, which includes a warehouse or godown, not only a sales presence.

Can I raise GST invoices before I actually receive my GSTIN?

No. GST can only be charged once registration is granted; invoices for a gap period are typically corrected through a revised invoice rather than raised in advance.

Why do some new GST registrations get suspended shortly after approval?

The most common reason currently is not adding bank account details within 30 days of the GSTIN being issued, which triggers automatic suspension under a GSTN advisory from November 2025.

If I supply only exempt goods or services, do I need to register even above the threshold?

Generally no. Section 23 of the CGST Act exempts persons dealing exclusively in wholly exempt or non-taxable supplies from registration, unless they fall into a mandatory category under Section 24.

I’m a freelancer serving only clients outside India. Do I need to register?

If turnover crosses the applicable threshold, yes. Export of services is zero-rated, not exempt, so it counts toward aggregate turnover in full. Many freelancers register voluntarily below the threshold to claim ITC refunds.

Last updated on 5 August 2026