How to calculate GST on a product?

To calculate GST, multiply the base amount by the GST rate and divide by 100. For example, GST on ₹10,000 at 18% = ₹10,000 × 18/100 = ₹1,800. The total price becomes ₹11,800.

How to remove GST from a price?

To remove GST from an inclusive price, use: Base Price = Total Price × 100 / (100 + GST Rate). For example, for ₹11,800 at 18%: Base = ₹11,800 × 100 / 118 = ₹10,000.

What is the difference between CGST, SGST and IGST?

For intra-state sales (within the same state), GST is split equally into CGST (Central GST) and SGST (State GST). For inter-state sales (across states), the full GST is charged as IGST (Integrated GST).

GST Calculator

Instantly calculate GST for any amount. Add or remove GST with accurate CGST, SGST & IGST breakdown.

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Slabs reflect GST 2.0 (in force since 22 Sept 2025): the old 12% and 28% rates were abolished — most goods now fall under 5% or 18%, with 40% for select luxury/sin goods. Working with an invoice dated before 22 Sept 2025? Use Custom to enter 12% or 28%.

Rates verified against GST 2.0 · last reviewed July 2026

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How to Use This GST Calculator

This free GST Calculator lets you compute the Goods and Services Tax on any amount instantly. Choose between Add GST (to find the total price including GST) or Remove GST (to extract the base price from a GST-inclusive amount).

GST Rates in India (2026–27, under GST 2.0)

From 22 September 2025, the GST Council's "GST 2.0" reform replaced the old four-slab structure with a simplified system. The 12% and 28% slabs were abolished.

0% GST — Essentials: milk, fresh vegetables, grains, notebooks, pencils, life-saving medicines
5% GST — Most daily-use goods: packaged food, apparel & footwear up to ₹2,500, soaps, shampoos, most medicines, utensils, toys (non-electronic)
18% GST — Standard rate: electronics, smartphones, apparel & footwear above ₹2,500, services
40% GST — Select luxury & sin goods: tobacco, pan masala, aerated drinks, high-end vehicles

Special rates of 0.25% (rough diamonds) and 3% (gold, silver, jewellery) continue. Always confirm your product's current rate on the official CBIC GST portal.

CGST, SGST & IGST Explained

Intra-State (within same state): GST is split equally into CGST (Central) + SGST (State).
Inter-State (across states): Full GST is charged as IGST (Integrated GST).

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