GST calculator — add or remove GST
Quoting a price, checking a bill or working back from an MRP? Add GST on top or take it out, at the new rates.
The bill
₹10,000 at each GST rate
| Rate | Before GST | GST | Total |
|---|---|---|---|
| 5% | ₹10,000 | ₹500 | ₹10,500 |
| 18% | ₹10,000 | ₹1,800 | ₹11,800 |
| 40% | ₹10,000 | ₹4,000 | ₹14,000 |
The maths, in plain words
Adding GST
GST = price × rate. Total = price + GST. ₹1,000 at 18% → ₹180 GST → ₹1,180.
Removing GST
Price before GST = total ÷ (1 + rate). ₹1,180 at 18% → ₹1,180 ÷ 1.18 = ₹1,000.
CGST, SGST and IGST
Within a state, GST is split equally between the Centre (CGST) and the state (SGST). Across states it’s charged as one IGST.
People also ask
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What are the GST rates now?
What happened to 12% and 28%?
How do I calculate GST from an inclusive price?
Is MRP inclusive of GST?
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