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Tax

GST Calculator

Add GST to a price or find the GST inside a total at 5%, 18%, 40% and the special rates, with the CGST and SGST split.

The amount you have

Result

Updates as you type

Price including GST

₹11,800

GST (18%)
₹1,800
CGST (9%)
₹900
SGST / UTGST (9%)
₹900
IGST if inter-state (18%)
₹1,800
Price before GST
₹10,000

How it's calculated

GST is charged on the price before tax at the rate for the goods or service. Within a state it is collected half as CGST and half as SGST; between states the full rate is IGST. To take GST out of an inclusive price, divide by one plus the rate.

Before GST → total: GST
= price × rate CGST = SGST = GST / 2
Includes GST → price: price
= total / (1 + rate) GST = total − price

Worked example

₹25,000 before GST at 18%, and ₹25,000 including GST at 5%:

  1. 18%: GST ₹4,500 (₹2,250 CGST + ₹2,250 SGST) → ₹29,500 including GST
  2. 5% inclusive: ₹25,000 / 1.05 = ₹23,809.52 before GST → ₹1,190.48 GST

GST rates and tables

GST rates in force

GST rates in force from 22 September 2025
RateApplies toCGST + SGST
Rate: 5%Applies tomerit rate (most essentials, many former 12% items)CGST + SGST2.5% + 2.5%
Rate: 18%Applies tostandard rate (most goods and services)CGST + SGST9% + 9%
Rate: 40%Applies tosin and luxury goodsCGST + SGST20% + 20%
Rate: 3%Applies togold, silver, jewelleryCGST + SGST1.5% + 1.5%
Rate: 1.5%Applies tocut and polished diamondsCGST + SGST0.75% + 0.75%
Rate: 0.25%Applies torough diamondsCGST + SGST0.13% + 0.13%

GST at 5% and 18% on common amounts

GST and GST-inclusive totals for common amounts at 5% and 18%
Price before GSTGST at 5%Total at 5%GST at 18%Total at 18%
Price before GST: ₹500GST at 5%₹25Total at 5%₹525GST at 18%₹90Total at 18%₹590
Price before GST: ₹1,000GST at 5%₹50Total at 5%₹1,050GST at 18%₹180Total at 18%₹1,180
Price before GST: ₹5,000GST at 5%₹250Total at 5%₹5,250GST at 18%₹900Total at 18%₹5,900
Price before GST: ₹10,000GST at 5%₹500Total at 5%₹10,500GST at 18%₹1,800Total at 18%₹11,800
Price before GST: ₹50,000GST at 5%₹2,500Total at 5%₹52,500GST at 18%₹9,000Total at 18%₹59,000
Price before GST: ₹1,00,000GST at 5%₹5,000Total at 5%₹1,05,000GST at 18%₹18,000Total at 18%₹1,18,000

Frequently asked questions

How do I calculate GST on a price?

Multiply the price by the rate. ₹10,000 at 18% carries ₹1,800 GST (₹900 CGST + ₹900 SGST within a state, or ₹1,800 IGST between states), so the invoice total is ₹11,800.

How do I remove GST from a total (reverse GST)?

Divide the inclusive amount by 1 + rate. ₹11,800 including 18% GST is ₹10,000 before tax and ₹1,800 GST. Taking 18% of the total would overstate the GST.

What are the GST rates in India?

Since 22 September 2025 there are two main rates, 5% (merit) and 18% (standard), plus 40% for sin and luxury goods; the 12% and 28% slabs were abolished by the 56th GST Council. Special rates continue for gold and jewellery (3%), cut and polished diamonds (1.5%) and rough diamonds (0.25%), and many essentials are nil-rated.

What is the difference between CGST, SGST and IGST?

Within a state the GST is split equally into Central GST and State GST (9% + 9% for an 18% supply). For a supply between states, the whole rate is charged as Integrated GST. The total is the same either way.

Which items are at 40%?

Pan masala, tobacco products, aerated and caffeinated drinks, large cars and motorcycles, yachts, private aircraft and online money gaming, among others. Tobacco items kept their earlier rate plus cess until the compensation cess loans are repaid.

Sources

Assumes a taxable supply at the chosen rate; compensation cess, nil-rated and exempt supplies are not covered. Results are for guidance only.

Rates from 22 September 2025 · Updated: