Enter an amount and a GST rate to add GST to a price (exclusive) or take GST out of a price (inclusive, also called back calculation). For a sale within your state the tax splits into CGST and SGST; for a sale to another state it is IGST. The rate list follows the GST rate notifications in force in 2026.
Intra-state supplies split into CGST and SGST; inter-state supplies carry a single IGST at the same total rate. Your rate depends on the classification of what you sell, look it up in the HSN / SAC finder. Indicative only, confirm with an Expert before you file.
Pick a GST rate, enter your amounts and choose whether your prices include GST. The calculator shows the taxable value, CGST and SGST or IGST, and the total for every line.
Charging GST on an invoice means you need a GSTIN first. We can help you register for GST in 3 to 7 working days.
This calculator gives you the right numbers for a single transaction. But staying compliant means doing it for every invoice, reconciling input credit, and filing GSTR-1 and GSTR-3B on time, month after month.
Our GST Return Filing service does exactly that, your dedicated Expert prepares, reconciles and files your returns so you never miss a deadline or a credit.
Done-for-you monthly filing by a real Expert, from a fixed monthly fee.
For a sale within the same state, GST is split equally into CGST (central) and SGST (state). For inter-state sales, a single IGST is charged at the full rate instead. Switch “Place of supply” to see either split, the total tax is identical.
Use the rate your goods or service carries in the GST rate notifications. Since 22 September 2025 the goods rates are 0%, 0.25%, 1.5%, 3%, 5%, 18% and 40%, and the 28% rate was removed from 1 February 2026. Services have their own rate notification. To find your goods or service code, use our HSN code finder.
Yes. Under the Legal Metrology (Packaged Commodities) Rules, 2011, the retail sale price printed on a package is the maximum price “inclusive of all taxes”. To find the GST in an MRP, use the inclusive formula.
No. Compensation cess on pan masala and tobacco products is nil from 1 February 2026, and, as we read the GST Council’s FAQ, other goods stopped carrying it from 22 September 2025.
A discount shown on the face of the invoice reduces the taxable value, so tax is charged on the net amount. Post-sale discounts only reduce it if they were agreed before the supply and are linked to the invoice. Enter yours as a percentage, or switch to flat rupees in advanced options.
On certain supplies, including goods transport, legal services and purchases from unregistered dealers, the recipient pays the GST instead of the supplier. Turn on RCM and the invoice bills the taxable value only, with the tax shown separately as the recipient’s liability.
Section 170 of the CGST Act rounds the tax and the total to the nearest rupee. The calculator shows the round-off as its own line so your invoice ties out exactly. Turn it off in advanced options if you need the paise.
Government departments and PSUs deduct 2% TDS under section 51 on contracts above ₹2.5 lakh. E-commerce operators collect 0.5% TCS under section 52 on your net taxable sales. Notification 15/2024-Central Tax halved it from 1% with effect from 10 July 2024. Both are computed on the taxable value, not on the tax, and both land in your electronic cash ledger to offset later liability.
Yes. You must be registered and have a GSTIN to legally collect GST. If your turnover crosses the threshold, talk to us about GST registration.
The price already contains the GST. To find the GST inside it: GST = price × rate ÷ (100 + rate). At 18%, ₹1,180 inclusive of GST is ₹1,000 plus ₹180 GST.
GST is added on top of the price. At 18%, ₹1,000 exclusive of GST becomes ₹1,180.
Divide the price by (100 + rate) and multiply by the rate. For ₹11,800 at 18%: 11,800 × 18 ÷ 118 = ₹1,800 GST, so the value is ₹10,000.
With the amount in cell A2 and 18% GST: GST to add =A2*18/100, total =A2*1.18. GST inside an inclusive price: =A2*18/118, value before GST =A2/1.18. Change 18 to your rate.
IGST applies to a sale from one state to another, at the full GST rate. ₹10,000 at 18% to another state carries ₹1,800 IGST. Within a state, the same ₹1,800 splits into ₹900 CGST and ₹900 SGST.
No goods schedule carries 12% since 22 September 2025, and the 28% schedule was removed from 1 February 2026. Older invoices may still show these rates.
GST upar se jodna ho to: GST = amount × rate ÷ 100. Price mein GST shamil ho to: GST = price × rate ÷ (100 + rate). Jaise ₹1,180 mein 18% GST: 1,180 × 18 ÷ 118 = ₹180.
₹1,000 par 18% GST = ₹180, total ₹1,180. Agar ₹1,180 mein GST shamil hai, to GST = 1,180 × 18 ÷ 118 = ₹180.
Last reviewed: 9 October 2026
FilingSetu is the brand of ANR Consultancy, a partnership firm.
GSTIN: 07ACOFA0324K1ZG
This page explains the law as it stands on the review date. It is not advice on your specific case.
Skip the portal headaches, we prepare and file your GSTR-1 and GSTR-3B on time, every time.