GST Calculator

Add or remove GST from any amount. Get CGST + SGST or IGST breakdown instantly.

Calculation Mode

Enter the base price — GST will be added on top.

Price before GST
GST Rate
Transaction Type

Within same state — GST splits into CGST + SGST

18% Adding GST to Base Price
Base Amount₹1,000.00
Total GST₹180.00
Total Amount₹1,180.00

Tax Breakdown

CGST @ 9% ₹90.00
SGST @ 9% ₹90.00
Total GST₹180.00
GST Rate Reference
RateCommon Items
0%Essential food items, books, newspapers
0.25%Cut/semi-polished diamonds
3%Gold, silver, precious metals, jewellery
5%Edible oil, sugar, spices, tea, coffee
12%Butter, cheese, ghee, frozen meat, mobile phones
18%Hair oil, toothpaste, soap, capital goods, IT services
28%Luxury cars, AC, tobacco, cement, aerated drinks

How GST Works

What is GST?

Goods and Services Tax (GST) is India's unified indirect tax replacing VAT, service tax, and excise duty. It's applied at each stage of supply chain.

CGST vs SGST vs IGST

Intra-state (within same state): GST is split equally into CGST (Central) and SGST (State). Inter-state (cross-state): Full IGST applies, collected by Centre.

Inclusive vs Exclusive

Exclusive (Add GST): Your price is the base; GST is added on top. Inclusive (Remove GST): Your price already includes GST; calculator extracts the base and tax.

Formula

Add: GST = Base × Rate%
Remove: Base = Total ÷ (1 + Rate%)
CGST = SGST = Total GST ÷ 2