GST Calculator India

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Formula: Total = Amount × (1 + GST Rate)

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Formula: Amount = Total ÷ (1 + GST Rate)

How do I calculate GST?

In India, GST is calculated based on the applicable tax rate (0%, 5%, 12%, 18%, or 28%) for specific goods or services, determined by their HSN (Harmonized System of Nomenclature) code for goods or SAC (Service Accounting Code) for services. Here's how to calculate it:

For official information on GST in India, please refer to the Goods and Services Tax Network (GSTN) official website.

From a base price (excluding GST):

  • GST amount = Base price × GST rate
  • Total price (including GST) = Base price × (1 + GST rate)

Example: Base price = ₹1,000, GST rate = 18%
GST amount = ₹1,000 × 0.18 = ₹180
Total price = ₹1,000 × 1.18 = ₹1,180

From a total price (including GST):

  • Base price = Total price ÷ (1 + GST rate)
  • GST amount = Total price - Base price

Example: Total price = ₹1,180, GST rate = 18%
Base price = ₹1,180 ÷ 1.18 = ₹1,000
GST amount = ₹1,180 - ₹1,000 = ₹180

Types of GST in India

India follows a dual GST model, which includes:

CGST (Central GST)

Collected by the Central Government on intra-state sales. For example, on an 18% GST transaction within a state, 9% is CGST.

SGST (State GST)

Collected by the State Government on intra-state sales. For example, on an 18% GST transaction within a state, 9% is SGST.

IGST (Integrated GST)

Collected on inter-state sales and imports. For an 18% GST transaction between different states, the entire 18% is IGST.

UTGST (Union Territory GST)

Collected by Union Territory governments on sales within a Union Territory.

GST Rate Slabs in India

India has a multi-tier GST system with the following rate slabs:

5% GST

Applied to essential items like edible oil, sugar, spices, tea, and coffee.

12% GST

Applied to goods like frozen meat products, butter, cheese, mobiles, and processed food.

18% GST

Applied to goods and services like hair oil, toothpaste, soap, capital goods, and most services.

28% GST

Applied to luxury items and sin goods like luxury cars, tobacco products, pan masala, and aerated drinks.

0% GST (Exempt or Nil-rated)

Applied to essential items like fresh fruits and vegetables, milk, eggs, and educational services.