GST registration is not one-size-fits-all. The type of registration your business needs depends on the nature of your operations, your turnover, how often you trade, and whether you are based in India or abroad. Getting this right from the start saves you from compliance headaches later.
Here is a breakdown of every GST registration type in India, explained plainly.
1. Regular GST Registration
Who it is for: Any business or professional whose annual turnover crosses the prescribed threshold.
This is the most common GST registration in the country. A business qualifies for regular registration when its annual turnover exceeds:
| Business Type | Turnover Threshold |
|---|---|
| Supply of goods (most states) | ₹40 lakh |
| Supply of services | ₹20 lakh |
| Special category states | ₹10 to ₹20 lakh |
Regular taxpayers can claim Input Tax Credit (ITC) on purchases — a significant financial advantage where you offset the GST paid on inputs against the GST collected on sales.
Filing requirement: GSTR-1 (sales details) and GSTR-3B (summary return with tax payment) — monthly or quarterly depending on turnover.
2. Composition Scheme Registration
Who it is for: Small businesses and professionals looking for simplified compliance.
Instead of tracking every input credit and filing detailed monthly returns, composition dealers pay a flat, lower rate of tax on their turnover and file returns just once a year.
| Category | Annual Turnover Limit |
|---|---|
| Goods dealers | Up to ₹1.5 crore (₹75 lakh for special category states) |
| Service providers | Up to ₹50 lakh |
The trade-offs: composition dealers cannot claim ITC, cannot make inter-state sales, cannot collect GST from customers, and cannot sell through e-commerce operators.
Filing requirement: CMP-08 quarterly statement-cum-challan for tax payment, plus annual return in GSTR-4.
If you run a small retail shop, local restaurant, or neighbourhood service business and compliance paperwork feels overwhelming, the Composition Scheme is worth evaluating.
3. Casual Taxable Person Registration
Who it is for: Businesses or individuals who supply goods or services occasionally in a state where they have no fixed place of business.
Think of someone setting up a stall at a trade fair in another state, or a photographer hired for a one-time event in a city they do not operate from.
This registration is temporary — valid for 90 days (extendable if needed). The applicant must estimate their GST liability in advance and deposit that amount as advance tax before registration is granted.
4. Non-Resident Taxable Person (NRTP) Registration
Who it is for: Foreign individuals or businesses that occasionally supply goods or services in India without a fixed base here.
A company headquartered in Germany that participates in an exhibition in India, for example, would register as a Non-Resident Taxable Person.
Like casual taxable persons, NRTP registration lasts 90 days and requires advance deposit of estimated GST liability.
Filing requirement: GSTR-5, filed monthly during the period of registration.
5. Input Service Distributor (ISD) Registration
Who it is for: Large businesses with multiple branches across India where the head office receives invoices for services used by all branches.
Imagine a company’s head office in Mumbai that pays for software licenses, legal services, or consultancy fees used by branches in Delhi, Hyderabad, and Chennai. The head office registers as an ISD so it can receive the GST input credit on those invoices and distribute it proportionally to each branch.
ISD registration is separate from regular GST registration — the head office can hold both.
Filing requirement: GSTR-6, filed monthly.
6. Unique Identification Number (UIN) Registration
Who it is for: Foreign diplomatic missions, embassies, consulates, and UN organisations operating in India.
These entities do not pay GST in the conventional sense — they are entitled to refunds on the GST they pay on purchases in India. The UIN is what enables those refund claims. Regular businesses and individuals are not eligible for this type.
7. E-Commerce Operator Registration
Who it is for: Companies that run e-commerce platforms through which other sellers supply their goods or services.
Online marketplaces must register under GST regardless of their own turnover — this is mandatory, not optional. They are required to collect Tax at Source (TCS) from sellers operating on their platform and deposit it with the government.
Filing requirement: GSTR-8, filed monthly, reporting TCS collected.
8. TDS Deductor Registration
Who it is for: Government departments, government undertakings, and local authorities that make payments to contractors above a specified value.
When a government body pays a contractor ₹2.5 lakh or more for a supply, it must deduct 2% GST at source before making the payment and deposit it with the government.
Filing requirement: GSTR-7, filed monthly, reporting TDS deducted and deposited.
9. OIDAR Services Registration
Who it is for: Foreign companies providing Online Information and Database Access or Retrieval (OIDAR) services to customers in India.
This covers digital services like cloud computing, online gaming, digital content streaming, data retrieval, and online advertising delivered over the internet from outside India to Indian consumers. Even with zero physical presence in India, if a foreign company serves Indian customers digitally, it must register under GST.
Filing requirement: GSTR-5A, filed monthly.
Quick Reference: All Types at a Glance
| Registration Type | Who It Is For | Return Filing |
|---|---|---|
| Regular | Standard businesses above threshold | GSTR-1 + GSTR-3B |
| Composition Scheme | Small businesses below ₹1.5 cr or ₹50 lakh | CMP-08 + GSTR-4 (annual) |
| Casual Taxable Person | Occasional sellers in a state with no fixed base | GSTR-1 + GSTR-3B |
| Non-Resident Taxable Person | Foreign entities supplying occasionally in India | GSTR-5 |
| Input Service Distributor | Head offices distributing ITC to branches | GSTR-6 |
| UIN | Foreign embassies and UN organisations | Refund claims only |
| E-Commerce Operator | Online marketplace platforms | GSTR-8 |
| TDS Deductor | Government bodies making contractor payments | GSTR-7 |
| OIDAR | Foreign digital service providers to India | GSTR-5A |
How to Choose the Right Type
Small business with turnover under ₹1.5 crore? Consider the Composition Scheme — it trades ITC eligibility for far simpler compliance.
Selling in other states on a temporary basis? Casual Taxable Person registration covers you for up to 90 days.
Foreign individual or company selling in India? NRTP or OIDAR registration applies depending on whether you are physically present or selling purely online.
Running an e-commerce marketplace? E-Commerce Operator registration is mandatory regardless of your size.
Government office making payments to contractors? TDS Deductor registration is required for relevant transactions.
Head office paying for services used by multiple branches? ISD registration lets you distribute that input credit efficiently.
For most Indian businesses above the turnover threshold, Regular GST Registration is the right answer. Everything else covers specific-purpose situations.
What Happens After Registration
Once you have your GSTIN — a 15-digit Goods and Services Tax Identification Number — you are required to display your GST registration certificate prominently at your principal place of business, quote your GSTIN on every tax invoice, and file returns on the schedule applicable to your registration type.
Any changes in your legal name, address, or authorised signatory must be filed within 15 days of the change. If your business closes, crosses below the threshold, or restructures, GST registration can be cancelled. A cancelled registration can be revoked within 30 days if circumstances change again.
The Bottom Line
Getting your GST registration type right determines your compliance obligations, tax rate, ITC eligibility, and how often you file returns. A small business that accidentally registers as a regular taxpayer instead of opting for the Composition Scheme ends up with unnecessary monthly filings. A foreign digital company that skips OIDAR registration faces penalties.
Understand your business profile, match it to the right registration type, and GST compliance becomes far more manageable than it first appears.