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HQ8T

GST Calculator

Add or remove GST from any amount instantly.

What do you want to do?
₹
%
Net amount
₹1,000.00
GST (18%)
₹180.00
Total amount
₹1,180.00

Within the same state

CGST 9%: ₹90.00

SGST 9%: ₹90.00

To another state

IGST 18%: ₹180.00

How to use

  1. 1Enter the amount.
  2. 2Choose “Add GST” if the amount is before tax, or “Remove GST” if it already includes GST.
  3. 3Pick the GST rate, or type a custom rate.
  4. 4See the net amount, GST amount, total, and the CGST/SGST split.

Frequently asked questions

How do I add GST to a price?

GST amount = Price × Rate ÷ 100, and Total = Price + GST. For example, ₹1,000 at 18% = ₹180 GST, total ₹1,180.

How do I remove GST from an inclusive price?

Net price = Total ÷ (1 + Rate ÷ 100). For example, ₹1,180 including 18% GST = ₹1,000 + ₹180 GST.

What are the current GST rates?

From 22 September 2025 most goods and services fall under 5% or 18%, with 40% for luxury and sin goods, and special rates like 0.25% and 3% for some items. Always check the rate for your specific item.

What are CGST, SGST and IGST?

For a sale within the same state, GST is split equally into CGST (central) and SGST (state). For a sale to another state, the full amount is charged as IGST.

Can I use this for invoices?

Yes, it's handy for checking invoice amounts. For a full GST invoice, our Invoice Generator is coming soon.

Guides

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