Choose whether GST is to be added (Exclusive) or removed (Inclusive).
Select supply type (Intra-state or Inter-state).
Click Calculate.
Example Calculation
For ₹10,000 GST inclusive at 18%: Base Amount = ₹8,474.58, Total GST = ₹1,525.42 (CGST ₹762.71 + SGST ₹762.71).
Understanding the Results
For sales within the same state, GST is shared equally between Central (CGST) and State (SGST) governments.
GST Calculator India — Complete GST Guide
India's Goods and Services Tax (GST) is a unified, multi-stage, destination-based consumption tax that replaced a complex web of central and state levies (excise duty, service tax, VAT, etc.) on 1 July 2017. Understanding GST calculation is essential for business owners, freelancers, and anyone involved in invoicing in India.
What Is GST?
GST is levied at every stage of the supply chain — from manufacturer to retailer — but the tax is ultimately borne only by the final consumer. Registered businesses collect GST on their sales (output tax) and can claim credit for GST paid on their purchases (input tax), paying only the net difference to the government.
GST is split between central and state governments based on whether the transaction is within a state or between states:
CGST + SGST (Intrastate): When buyer and seller are in the same state, GST is split 50/50 between Central GST (CGST) and State GST (SGST). On an 18% transaction: 9% CGST + 9% SGST.
IGST (Interstate or Import): When goods/services cross state boundaries, the full GST rate is applied as Integrated GST (IGST), collected by the Centre and then distributed to the destination state. On 18% interstate: 18% IGST.
Financial Disclaimer: Financial Disclaimer: Calculation results and projections are provided for educational and illustrative purposes only and do not constitute financial, investment, lending, or tax advice. Actual borrowing terms, interest rates, and loan charges are determined by lenders and underwriting policies.
Frequently Asked Questions
What is the difference between CGST, SGST, and IGST?
CGST (Central) and SGST (State) are charged equally for transactions within the same state. IGST (Integrated) is charged for inter-state supplies and goes to the Central Govt.
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