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GST Calculator
GST Calculator
Calculate tax additions or deductions (Add GST / Remove GST) for goods and services transactions.
Tax Settings
Net Amount
$10,000
GST Tax Amount
$1,800
Gross Amount
$11,800
GST Tax Breakdown
Net Amount (Tax Excluded)
$10,000
Central GST (CGST - 50%)
$900
State GST (SGST - 50%)
$900
CGST and SGST splits computed at 50% each of total tax.
GST Calculation Formulas
Understand the mathematical logic used to add or remove GST.
1. Adding GST (Tax Exclusive)
Used when the base amount does not include tax, and you want to compute the final price.
GST = Net Amount × (Rate / 100)
Gross = Net Amount + GST
2. Removing GST (Tax Inclusive)
Used when the total price includes tax, and you want to find the original pre-tax value.
Net = Gross Amount / (1 + (Rate / 100))
GST = Gross Amount − Net Amount