GST Calculator
Instantly calculate GST, CGST, and SGST breakdowns for any goods or services.
Calculation Details
Tax Breakdown
Net Amount
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GST Tax Amount
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CGST (Central)
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SGST (State)
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Total / Gross Amount
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Understanding Goods and Services Tax (GST) Calculations
Goods and Services Tax (GST) is an indirect, consumption-based tax levied on the supply of goods and services. For business owners, accountants, and consumers, calculating GST components is essential for accurate invoicing and tax compliance.
GST Components: CGST, SGST, and IGST
Under GST, taxes are divided based on the location of the transaction:
- Intra-State Transactions: For sales within the same state, the tax is split equally between **CGST** (Central GST) and **SGST** (State GST). For example, an 18% GST rate is split into 9% CGST and 9% SGST.
- Inter-State Transactions: For sales between different states, a single **IGST** (Integrated GST) is applied at the full tax rate.
Formulas for Adding and Subtracting GST
Depending on whether the tax is inclusive or exclusive, different calculations apply:
- Add GST (Exclusive):
GST Amount = (Original Cost * GST Rate) / 100 - Remove GST (Inclusive):
Net Price = Original Cost / (1 + (GST Rate / 100))
Contextual Compliance Tools
To verify value-added taxes with custom percentages, check out our VAT Calculator. If you are estimating annual income tax liabilities for your business, visit our Income Tax Calculator.
Frequently Asked Questions
What is the difference between CGST and SGST?
CGST is the tax revenue collected by the Central Government, while SGST is collected by the State Government. For sales within a state, the total GST is split equally between the two.
How do you calculate tax-inclusive price back to net cost?
Divide the total price by (1 + GST rate/100). For example, a ₹118 item with 18% GST has a net cost of: 118 / 1.18 = ₹100.