GST Registration Eligibility
Calculator
Find out if your business must register for GST — based on your state, turnover, supply type & business category. Instant verdict + next steps.
What this means for you
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Disclaimer: Indicative guidance based on GST Act 2017. Threshold limits are subject to government notifications. Consult a CA for your specific situation.
GST registration thresholds — FY 2025-26
Registration is mandatory once your aggregate turnover crosses the limit for your state and supply type. General states use a higher ₹40 lakh limit for pure goods, while services (and mixed supply) always use the lower ₹20 lakh limit.
| Goods only | ₹40,00,000 |
| Services | ₹20,00,000 |
| Both goods & services | ₹20,00,000 |
| HP, J&K, Uttarakhand, Arunachal, Meghalaya, Sikkim, Assam | ₹20,00,000 |
| Manipur, Mizoram, Nagaland, Tripura | ₹10,00,000 |
Compulsory registration — threshold does not matter
Some businesses must register from day one, regardless of turnover — even ₹1 of these supplies triggers mandatory GST registration under Section 24 of the CGST Act.
| Interstate supply of goods | Sec 24 |
| E-commerce sellers & operators | Sec 24 |
| Liable under reverse charge (RCM) | Sec 24 |
| Casual taxable person | Sec 24 |
| Non-resident taxable person | Sec 24 |
| TDS deductor (Govt / PSU) | Sec 24 |
| Input Service Distributor | Sec 24 |
| Agents supplying on behalf of others | Sec 24 |
Key terms explained
Aggregate turnover
The all-India total of taxable + exempt + non-GST supplies + exports on the same PAN, excluding GST itself. This is what is compared against the threshold — not just your taxable sales.
Special category states
North-eastern and hill states get a lower threshold (₹20L or ₹10L). If you operate there, you must register far earlier than a business in a general state.
Compulsory registration
Interstate supply, e-commerce, reverse charge and casual/non-resident dealings make registration mandatory from day one, regardless of how small your turnover is.
Voluntary registration
You can register even below the threshold to claim Input Tax Credit, sell on marketplaces and issue valid tax invoices — often worthwhile if you have large input purchases.
- Select what your business primarily supplies: goods, services, both, e-commerce, or interstate.
- Choose your state, which sets the applicable threshold.
- Enter your annual aggregate turnover across all activities under the same PAN.
- Tick any special triggers, then get an instant mandatory or optional verdict with next steps.
What is the GST registration threshold?
For most states the threshold is ₹40 lakh aggregate turnover for goods and ₹20 lakh for services. Special category states use lower limits of ₹20 lakh or ₹10 lakh.
When is GST registration mandatory regardless of turnover?
Registration is compulsory for interstate suppliers, e-commerce sellers and operators, casual and non-resident taxable persons, reverse charge recipients, and government TDS deductors, even below the threshold.
What counts as aggregate turnover?
Aggregate turnover is all taxable, exempt, non-GST, and export supplies made across India under the same PAN, excluding taxes. Turnover from all business locations is added together.
Should I register voluntarily if I am below the threshold?
Voluntary registration can be worthwhile if you have significant taxable purchases, since it lets you claim input tax credit, sell on e-commerce platforms, and issue valid tax invoices.
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.