GST Calculator

Easily calculate Goods and Services Tax (GST) for your invoices. Switch between Exclusive (Add GST) and Inclusive (Reverse GST) modes.

Calculate Tax

Use this when you want to ADD tax to a basic price.

Net Amount₹0.00
GST (18%)₹0.00
Total Amount₹0.00

GST Breakdown

CGST (Central)-
SGST (State)-
* For inter-state sales, IGST will be equal to the full GST amount.

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How to Calculate GST in India?

Goods and Services Tax (GST) calculation depends on whether the transaction is intra-state (within same state) or inter-state. Our calculator helps you determine both the tax component and the final invoice value.

GST Calculation Formula

  • Add GST: GST Amount = (Original Cost × GST Rate) / 100
  • Net Price: Original Cost + GST Amount
  • Remove GST: GST Amount = Original Cost - [Original Cost / (1 + GST Rate/100)]

Current GST Tax Slabs (2026)

  • 5%: Food items, medicines, transport
  • 12%: Processed food, computers, mobiles
  • 18%: Services, capital goods, most items
  • 28%: Luxury goods, cement, automobiles