GST Calculator — add or remove GST
Add GST to a price, or take it out of a price that already includes it. See the CGST and SGST split for a sale within a state, or IGST between states.
Since 22 September 2025 most goods and services are at 5% or 18%, a few luxury and sin goods at 40%. The rate depends on the item’s HSN/SAC code.
Start tracking free. With Premium, your bank’s own alert emails and SMS add each payment for you.
Start tracking →How it is calculated
Adding GST: GST = price × rate, and the total is the price plus GST. Removing GST from an inclusive price: the price before GST = inclusive price ÷ (1 + rate).
Within one state, GST is split equally into central (CGST) and state (SGST) tax — 18% is 9% + 9%. Between states, the whole amount is integrated GST (IGST). Since 22 September 2025, most goods and services are taxed at 5% or 18%, with 40% for a few luxury and sin goods and 0% for essentials.
Add: GST = price × rate · total = price + GST Remove: price = inclusive ÷ (1 + rate) · GST = inclusive − price CGST = SGST = GST ÷ 2 (within a state) · IGST = GST (between states)
Questions
What are the GST rates in 2026?
Since 22 September 2025, mainly 5% and 18%, with 40% on a short list of luxury and sin goods and 0% on many essentials. The exact rate depends on the item’s HSN or SAC code.
How do I remove GST from a price?
Divide the price by 1 plus the rate. For 18%, divide by 1.18: ₹1,180 ÷ 1.18 = ₹1,000.
What is the difference between CGST, SGST and IGST?
Within a state, GST is shared equally between the centre (CGST) and the state (SGST). On a sale from one state to another, it is all IGST.
Is there GST on credit card interest?
Yes, 18% on interest and fees. Our credit card payment calculator includes it.
Add this calculator to your site
Free for any blog or website. Paste the code where the calculator should appear: it works on phones and stays up to date.