For Online Sellers

GST Calculator for Online Sellers: CGST, SGST or IGST on Every Order

Free tool · Updated October 2, 2026 · By CouponTalk · Reviewed by CouponTalk Expert Reviews on October 2, 2026

Your result

Enter your measurements to see your result.

Quick answer

Marketplace prices include GST, so the GST inside a price is price × rate ÷ (100 + rate). A ₹1,180 order at 18% holds ₹180 GST on a ₹1,000 taxable value. If the buyer is in your state, split it into 9% CGST and 9% SGST (₹90 each); if the buyer is in another state, it is 18% IGST (₹180). The buyer's delivery address decides which applies.

How to use this calculator

Enter the order value from your marketplace order report.
Choose whether that value includes GST. Listing prices on Amazon, Flipkart and Meesho include GST.
Pick the product's GST rate and whether the buyer is in your state.

GST split table

GST inside a ₹1,000 order (price includes GST)
GST rate	Taxable value	GST	CGST + SGST	IGST
0%	₹1,000.00	₹0.00	₹0.00 + ₹0.00	₹0.00
3%	₹970.87	₹29.13	₹14.56 + ₹14.56	₹29.13
5%	₹952.38	₹47.62	₹23.81 + ₹23.81	₹47.62
18%	₹847.46	₹152.54	₹76.27 + ₹76.27	₹152.54
40%	₹714.29	₹285.71	₹142.86 + ₹142.86	₹285.71

GST rules and rates can change. Confirm the rate for your product's HSN code on the GST portal or with your accountant.

Frequently asked questions

When do I charge IGST instead of CGST and SGST?

Charge IGST when the buyer's delivery address is in a different state from the state of your GST registration. For same-state deliveries, split the GST equally into CGST and SGST.

Is GST charged on the price after the marketplace discount?

Yes. GST is charged on the price the buyer actually pays you. A seller-funded discount shown on the invoice reduces the taxable value.

Do I need GST registration to sell online?

Most sellers do. Since 1 October 2023, small sellers under the turnover limit can sell within their own state on marketplaces without GST registration by getting a PAN-based enrolment number, but they cannot ship to other states.