GST Registration Required Checker
Find out instantly whether your business must register for GST — based on turnover thresholds and the mandatory-registration triggers, live in one screen.
- Free — no sign-up
- Instant, on-screen results
- Built by our CA · CS team
- Rules cited on the page
Fill in the details — the answer on the right updates as you go.
Your assessment — line by line
Get your GSTIN in a few working days
Our CAs handle the full application, documents and department queries end to end.
Disclaimer: Indicative guidance based on Sections 22 & 24 of the CGST Act, 2017 and prevailing threshold notifications. Special-category state lists and sector-specific rules may vary; confirm with a GST professional before deciding.
GST registration threshold reference
You must register once your aggregate turnover crosses the threshold that applies to your business. Goods suppliers in normal states enjoy the highest limit; service providers and special-category states get lower limits.
| Business type | State category | Threshold |
|---|---|---|
| Supplier of goods | Normal states | ₹40,00,000 |
| Supplier of services | Normal states | ₹20,00,000 |
| Supplier of goods | Special-category states | ₹20,00,000 |
| Supplier of services | Special-category states | ₹10,00,000 |
Mandatory registration — turnover doesn't matter
Section 24 of the CGST Act lists cases where GST registration is compulsory from day one, even if your turnover is below the threshold — right down to your very first rupee of taxable supply.
How this checker works
The logic mirrors how a GST practitioner assesses liability — mandatory triggers are checked first, then the turnover threshold.
Key terms explained
Aggregate turnover
The PAN-India total of all taxable, exempt, export and inter-state supplies (excluding GST itself). It is computed across all your business verticals and states on a single PAN.
GSTIN
A 15-digit GST Identification Number issued on registration — state code + PAN + entity/check digits. It must appear on every tax invoice you raise.
Voluntary registration
Even below the threshold you may register voluntarily to claim input tax credit, sell on e-commerce or supply to businesses that demand a GST invoice.
30-day timeline
Once you become liable, you must apply within 30 days of crossing the threshold (or before starting, for mandatory-trigger cases). Late registration attracts penalties.
Questions people ask
Short answers on GST Registration Required?. Tap a question to open it.
01What is the turnover threshold for GST registration?
₹40 lakh for a supplier of goods and ₹20 lakh for services in most states; ₹20 lakh and ₹10 lakh respectively in the special category states. Aggregate turnover is computed PAN-India across all states and includes exempt supplies and exports.
02When is registration compulsory regardless of turnover?
Under section 24 — for inter-state taxable supply of goods, casual and non-resident taxable persons, persons liable under reverse charge, e-commerce operators, persons supplying through an e-commerce operator that collects TCS, input service distributors, and agents.
03Do I need GST to sell on Amazon or Flipkart?
For goods, yes — selling through an e-commerce operator that collects TCS requires registration irrespective of turnover. Small service suppliers on such platforms have a limited exemption below the threshold, subject to conditions.
04Is registration needed for exempt supplies only?
No. A person dealing exclusively in exempt or non-taxable supplies is not liable to register, though the turnover still counts toward aggregate turnover if there are other taxable supplies.
05What is voluntary registration and is it worth it?
Any person can register voluntarily below the threshold. It is worth it if your customers need input credit or if you buy inputs on which you would otherwise absorb the tax — but it brings the full return-filing obligation with it.
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Disclaimer: This tool gives indicative results for general guidance only and is not professional advice. Please verify with a qualified CA before acting on the numbers.