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GST calculator (India)

Calculate Indian Goods and Services Tax (GST) at 5%, 12%, 18% or 28%, with CGST, SGST and IGST breakdown and reverse calculation.

In your browser

₹
18% is standard for most services & consumer goods in India
Intra-state applies within the same state; inter-state between states
Total GST Amount
Gross total (incl. GST)

Net Base Price (Excl. Tax)

Pre-tax invoice subtotal

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About this tool

Calculate Goods and Services Tax (GST) in India across 0%, 5%, 12%, 18%, and 28% tax slabs. View Central GST (CGST) and State GST (SGST) 50/50 split for intra-state sales or Integrated GST (IGST) for inter-state transactions.

How to use it

  1. 1 Enter the transaction amount and choose whether to Add GST (+) or Remove GST (-).
  2. 2 Select the applicable GST slab (0%, 5%, 12%, 18%, or 28%).
  3. 3 Select transaction type: Intra-State (CGST + SGST) or Inter-State (IGST).
  4. 4 View base price, tax breakdown, and total invoice amount.

Questions

How is GST split between central and state governments?

For transactions within the same state (intra-state), the total GST rate is divided equally between CGST and SGST (for example, 18% GST = 9% CGST + 9% SGST).

How do I reverse calculate GST from a gross amount?

To find the pre-tax price from a GST-inclusive bill, divide the gross total by (1 + GST rate / 100). The difference is the tax content.

Is my data uploaded?

No. This tool runs in your browser, so your text and files never reach our server.

Is this tool free?

Yes. It’s free to use with no sign-up and no limits for normal use.

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