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GST Calculator
Quickly calculate the Goods and Services Tax for your invoices. Add GST to your base price, or extract it from a total amount.
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How is GST calculated?
The Goods and Services Tax (GST) in India has different slab rates (5%, 12%, 18%, 28%). When billing within the same state, it is split equally between the Central Government (CGST) and the State Government (SGST). When billing across states, it is billed as a single Integrated tax (IGST).
Adding GST (+GST)
GST = (Amount x Rate) / 100
Net Amount = Amount + GST
Removing GST (-GST)
GST = Amount - [Amount x (100 / (100 + Rate))]
Base Amount = Amount - GST
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