Add GST to a price, or find the price before GST — with the CGST, SGST and IGST split.
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Popular uses
How to calculate GST
1Type the amountThe price before GST, or the total that already includes GST.
2Pick the GST rateTap a slab or type any rate.
3Add or removeSee GST amount, total and the CGST / SGST / IGST split.
Questions people ask
How do I add 18% GST to a price?
Multiply the price by 1.18. For ₹1,000 that is ₹1,180 — ₹180 is GST (₹90 CGST + ₹90 SGST within a state, or ₹180 IGST between states).
How do I remove GST from a total?
Divide the total by 1 + rate. For ₹1,180 with 18% GST: 1,180 ÷ 1.18 = ₹1,000 before GST. Choose “Remove GST” and the tool does this for you.
When is it CGST + SGST and when IGST?
Sales inside the same state are split equally into CGST and SGST. Sales to another state use IGST for the full rate.
Which GST rate applies to my product?
It depends on the item’s HSN or SAC code. Check the official GST rate list or ask your accountant. Rates can change after GST Council meetings.