GST Registration Threshold Checker

GST registration is the formal step that brings a business into the Goods and Services Tax system, giving it a 15-digit GSTIN and the obligation to charge GST, file returns, and claim input tax credit. The law makes registration mandatory once a business crosses a turnover threshold, but the threshold is not a single number — it depends on what you supply and where you operate. For a business supplying goods, the limit is ₹40 lakh of aggregate annual turnover in most states. Two groups of states carry lower limits: a “reduced-threshold” set (Arunachal Pradesh, Meghalaya, Sikkim, Telangana, Uttarakhand, and Puducherry) where the goods limit is ₹20 lakh, and the four special-category states (Manipur, Mizoram, Nagaland, and Tripura) where the limit is just ₹10 lakh. For services, the threshold is ₹20 lakh everywhere except those same four special-category states, where it is ₹10 lakh. “Aggregate turnover” means all taxable, exempt, and export supplies across the same PAN, computed on an all-India basis, not just one branch.

Beyond the turnover test, the law lists situations where registration is compulsory regardless of how little you earn. Under Section 24 of the CGST Act, anyone making inter-state taxable supplies, selling through an e-commerce operator like Amazon or Flipkart, acting as a casual or non-resident taxable person, or liable to pay tax under the reverse-charge mechanism must register from the first rupee. This catches small online sellers and businesses serving customers in other states who might otherwise assume they are below the threshold — a common and costly misconception, since operating without required registration attracts penalties and blocks input-credit claims.

Getting this decision right matters because both errors are expensive. Registering unnecessarily burdens a small business with monthly return filing and compliance it does not need; failing to register when required attracts penalties, interest, and the loss of input tax credit on purchases. Many businesses also register voluntarily even when below the threshold — to claim input credit, to sell to larger GST-registered customers who demand a tax invoice, or to appear established. This checker focuses on the legal requirement so you know where you stand, then points you to the registration and GST tools for whichever path you choose.

Enter your aggregate annual turnover. Use your all-India turnover across the same PAN — all taxable, exempt, and export supplies combined, not a single branch or product line. The result updates as you type, with nothing submitted anywhere.

Choose what you supply. Select goods, services, or both. The threshold differs: goods get the higher ₹40 lakh limit (normal states), while services — or any mix that includes services — use the lower ₹20 lakh limit, because supplying any service removes the goods-only higher cap.

Pick your state. Choose your state of operation. The four special-category states (Manipur, Mizoram, Nagaland, Tripura) carry a ₹10 lakh limit for both goods and services; a second group (Arunachal Pradesh, Meghalaya, Sikkim, Telangana, Uttarakhand, Puducherry) keeps goods at ₹20 lakh rather than ₹40 lakh; every other state uses the standard ₹40 lakh goods / ₹20 lakh services limits. The tool applies the correct limit for where you operate.

Flag inter-state or e-commerce sales. Tick whether you make taxable supplies to other states or sell through an e-commerce operator. Either makes registration compulsory under Section 24 regardless of turnover, and the checker will say so directly. Read the verdict, which names the applicable threshold and the reason, then move to the GST tools to register or to handle invoicing once registered.

Plan for where you are headed. If your turnover is climbing toward the threshold, re-run the check with your projected annual figure to see when registration will become mandatory, so you can prepare rather than scramble. Registration is not instant — it takes time to gather documents and complete the application — and charging GST without a valid GSTIN, or failing to register once required, attracts penalties and blocks input-credit claims. Knowing the trigger point in advance lets you register in good time and decide whether voluntary early registration is worth it for the input credit it unlocks.