GST Calculator

Easily calculate Goods and Services Tax (GST) using our calculator. Supports both Tax Exclusive and Tax Inclusive modes with quick GST rate options (5%, 18%, 40%).

GST will be added to the base amount.
Actual Cost
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GST Amount
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Total Amount
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GST Breakdown
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What is GST?

GST (Goods and Services Tax) is a value-added tax applied on the supply of goods and services. It replaces multiple indirect taxes and is usually expressed as a percentage of the taxable amount.

Taxable Amount

The taxable amount is the base price of goods or services on which GST is calculated, excluding any other taxes or charges.

GST Rate

The GST rate is the percentage of tax applied to the taxable amount. Common rates in India are 5%, 12%, 18%, and 28%. The new system, called "Next-Gen GST Reforms," replaces the previous 5%, 12%, 18%, and 28% slabs with streamlined rates effective September 22, 2025 are 5%, 18%, 40% is implemented to reduce prices on essential goods and simplify compliance.

GST Formula

GST Calculation

GST Amount=Taxable Amount × GST Rate ÷ 100

Where:

Taxable AmountThe base price of goods or services
GST RateThe applicable GST percentage

GST Example

Example Calculation

If the taxable amount is ₹10,000 and the GST rate is 18%:

Step 1: Apply Formula

GST Amount=10,000 × 18 ÷ 100

Step 2: Result

  • GST Amount = ₹1,800
  • Total Price including GST = ₹11,800

Frequently Asked Questions