GST Calculator

Calculate GST instantly with inclusive and exclusive modes. Get CGST, SGST, and IGST breakdowns for all standard Indian tax slabs.

₹
Net Amount
₹10,000.00
Total Tax (18%)
₹1,800.00
Total Amount
₹11,800.00

Tax Breakdown

ComponentRateAmount
CGST9%₹900.00
SGST9%₹900.00

What is GST (Goods and Services Tax)?

GST (Goods and Services Tax) is a comprehensive indirect tax levied on the supply of goods and services in India, replacing multiple cascading taxes like VAT, Service Tax, and Excise Duty. Implemented on July 1, 2017, GST follows a destination-based taxation model.

GST is divided into CGST (Central GST — collected by the Central Government), SGST (State GST — collected by the State Government) for intra-state transactions, and IGST (Integrated GST — collected by the Central Government) for inter-state transactions.

India has four primary GST slab rates: 5% for essential goods, 12% for standard goods, 18% for most services and goods, and 28% for luxury and demerit goods. Some essential items like unprocessed food and milk are exempt (0% GST).

GST Calculation Formulas

Exclusive GST (Adding GST to Net Price)

GST Amount = Net Price × (GST Rate / 100)
Total Price = Net Price + GST Amount

Inclusive GST (Extracting GST from Total Price)

GST Amount = Total Price − [Total Price × 100 / (100 + GST Rate)]
Net Price = Total Price − GST Amount

Tax Component Split

  • Intra-state: CGST = GST/2, SGST = GST/2
  • Inter-state: IGST = Full GST Amount

Step-by-Step GST Calculation Example

Scenario: A product costs ₹10,000 (net price) with 18% GST, sold within the same state.

Step 1: Calculate GST Amount

GST = ₹10,000 × 18/100 = ₹1,800

Step 2: Split into Components

  • CGST (9%) = ₹900
  • SGST (9%) = ₹900

Step 3: Total Price

Total = ₹10,000 + ₹1,800 = ₹11,800

For inter-state supply, the entire ₹1,800 would be collected as IGST instead of splitting into CGST and SGST.

People Also Ask

What is GST and how is it calculated?
GST (Goods and Services Tax) is an indirect tax levied on the supply of goods and services in India. For exclusive GST, the tax is added on top of the net price. For inclusive GST, the tax is extracted from the total price using the formula: Tax = Price − (Price × 100) / (100 + Rate).
What is the difference between CGST, SGST, and IGST?
CGST (Central GST) and SGST (State GST) are levied equally on intra-state transactions — each is half the total GST rate. IGST (Integrated GST) applies to inter-state transactions and equals the full GST rate. The total tax burden remains the same.
What are the standard GST slab rates in India?
India has four primary GST slab rates: 5% for essential goods, 12% for standard goods, 18% for most services and goods, and 28% for luxury and demerit goods. Some items like unprocessed food attract 0% GST.