GST in India — A Quick Overview
GST (Goods and Services Tax) replaced multiple indirect taxes in India on 1 July 2017. It is a destination-based tax levied on the supply of goods and services. GST has four main rate slabs: 5%, 12%, 18% and 28%, with some goods at 0% (exempt). GST comprises CGST (Central) and SGST (State) for intra-state, and IGST for inter-state transactions.
Tax-Exclusive vs Tax-Inclusive Calculation
Exclusive — Adding Tax to Base PriceTax Amount = Base Price × (Rate ÷ 100)
Final Price = Base Price + Tax Amount
Example: ₹10,000 + 18% GST → Tax = ₹1,800 → Total = ₹11,800
Final Price = Base Price + Tax Amount
Example: ₹10,000 + 18% GST → Tax = ₹1,800 → Total = ₹11,800
Inclusive — Extracting Tax from Total PriceTax Amount = Total Price − (Total Price ÷ (1 + Rate/100))
Base Price = Total Price − Tax Amount
Example: Extract 18% from ₹11,800 → Tax = ₹1,800 → Base = ₹10,000
Base Price = Total Price − Tax Amount
Example: Extract 18% from ₹11,800 → Tax = ₹1,800 → Base = ₹10,000
Common GST Rate Examples
| Item / Service | GST Rate |
|---|---|
| Essential food items (rice, wheat, milk) | 0% (Exempt) |
| Packaged foods, hair oil, coal | 5% |
| Mobile phones, computers, medicine | 12% |
| Restaurant food, financial services, AC hotels | 18% |
| Luxury cars, tobacco, aerated drinks | 28% |
Frequently Asked Questions
Tax addition adds the tax percentage to your base price (tax exclusive), while tax extraction calculates the tax hidden within a final price (tax inclusive).
Yes. The calculator uses general tax rate percentages, making it compatible with GST, VAT, and local sales taxes worldwide.
Select the 'Tax Inclusive' option, enter the total price and the GST rate, and click calculate. The tool will display the pre-tax price and the tax amount.
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