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Calculators

GST Calculator

Calculate Goods and Services Tax (GST) inclusive or exclusive prices with CGST & SGST breakdown.

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GST (Goods and Services Tax) Calculator

Total Gross Amount
$1180.00
Net / Pre-tax:
$1000.00
Total GST (18%):
+$180.00
CGST (50%):
$90.00
SGST (50%):
$90.00

What this tool does

Computes GST inclusive and exclusive pricing, automatically calculating Central GST (CGST), State GST (SGST), and Integrated GST (IGST) breakdowns.

How to use this tool

  1. Enter the base amount or total bill amount.
  2. Select a standard tax slab (5%, 12%, 18%, 28%) or enter a custom rate.
  3. Choose whether the entered price is GST Exclusive or GST Inclusive.
  4. Review the net price, GST amount, CGST/SGST split, and final gross amount.

GST Formulas

GST Exclusive Total = Net Amount + (Net Amount × Rate / 100)
GST Inclusive Net = Gross Amount / (1 + Rate / 100)

For domestic intrastate transactions, GST is evenly split into CGST (50%) and SGST (50%). For interstate transactions, IGST is 100% of the tax.

Practical Examples

Exclusive 18% GST

Base service charge of $1,000 with 18% GST.

Input: Amount: 1000, Rate: 18%, Exclusive
Output: GST: 180 (CGST: 90, SGST: 90) | Total: 1180

Frequently Asked Questions

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