GST calculator — add or remove GST
Work out GST, CGST, SGST and IGST on any amount. Supports the new 5%, 18% and 40% rates and GST-inclusive prices.
Questions people ask
What are the GST rates now?
Since 22 September 2025 most goods and services fall in two slabs, 5% and 18%, with 40% for luxury and sin goods. Gold and silver attract 3% and rough diamonds 0.25%. Some items are exempt.
How do I remove GST from an inclusive price?
Divide the price by 1 plus the rate. For an ₹1,180 price at 18%, the value is 1,180 ÷ 1.18 = ₹1,000 and GST is ₹180. Choose 'Remove GST' in the calculator.
When do I charge CGST + SGST and when IGST?
Supply within the same state: CGST and SGST, half each. Supply to another state or export: IGST at the full rate.
Do I need GST registration?
Generally once turnover crosses ₹40 lakh for goods or ₹20 lakh for services (lower in some special-category states), or for inter-state sales and e-commerce in many cases. We can register you in 3–7 working days.
Rates for a particular item depend on its HSN/SAC code. Ask us if you're unsure. See also the GST due-date calendar.
Need help?
GST registration, returns or a notice?
We handle GST registration, monthly returns, annual returns and notice replies.