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Calculate GST
GST Breakdown
Enter amount and click Calculate GST
Intra-State Breakup (within same state)
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| GST Slab | Common Items | CGST | SGST |
|---|---|---|---|
| 5% | Everyday essentials: packaged food staples, edible oils, many medicines, most household goods | 2.5% | 2.5% |
| 18% | Standard rate: most goods and services, electronics, appliances, telecom, professional services | 9% | 9% |
| 40% | Luxury and sin goods: tobacco, pan masala, aerated drinks, luxury cars, large motorcycles | 20% | 20% |
| 12% | Removed on 22 Sep 2025. Use only for invoices dated before that. | 6% | 6% |
| 28% | Removed on 22 Sep 2025 (most items moved to 18%, luxury items to 40%). Older invoices only. | 14% | 14% |
How to Calculate GST in India?
GST (Goods and Services Tax) is a unified indirect tax levied in India since July 1, 2017. It replaced multiple taxes like VAT, service tax, excise duty, etc.
Formula to Add GST
GST Amount = (Original Price × GST Rate) ÷ 100
Total Price = Original Price + GST Amount
Example: ₹1,000 product with 18% GST → GST = ₹180 → Total = ₹1,180
Formula to Remove GST (Reverse GST)
Original Price = Total Price ÷ (1 + GST Rate ÷ 100)
GST Amount = Total Price − Original Price
Example: MRP ₹1,180 with 18% GST → Original = ₹1,000 → GST = ₹180
CGST, SGST, and IGST Explained
When goods/services are sold within the same state, GST is split equally between CGST (Central Government) and SGST (State Government). For example, 18% GST becomes 9% CGST + 9% SGST.
When sold across states, the full amount is collected as IGST (Integrated GST) by the Central Government, which is later distributed to states.
Calculator Without GST: Find the Price Excluding GST
If a bill or MRP already includes GST and you need the price without GST, choose Remove GST above. It works backwards from the GST-inclusive amount, so the tax is not simply the rate taken off the total.
Price without GST = GST-inclusive price ÷ (1 + GST rate ÷ 100)
Example: an item costs ₹590 including 18% GST. Price without GST = 590 ÷ 1.18 = ₹500, and the GST inside the price is ₹90. A common mistake is subtracting 18% of ₹590 (₹106.20), which gives the wrong answer.
GST rates checker: which rate applies?
Since 22 September 2025 (GST 2.0), most goods and services fall under 5% or 18%, with a 40% rate for luxury and sin goods and 0% for nil-rated items such as fresh food, education services and individual health and life insurance premiums. Rates are decided by the product's HSN code or the service's SAC code, so confirm your item on the official GST portal before invoicing.
Frequently Asked Questions (FAQs)
More Finance Tools You May Need
GST is just one part of financial planning. After calculating GST, use our EMI Loan Calculator to plan your business or personal loan. Use the Percentage Calculator to find profit margins or discount amounts easily. Tip Calculator is also useful for splitting bills at restaurants.