GST calculator
Add or remove GST with a transparent tax breakdown.
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Understanding your calculation
Enter the applicable GST rate yourself. Inclusive mode extracts tax from a tax-inclusive amount. CGST/SGST amounts divide the tax equally; the interstate view shows IGST. This does not determine classification, eligibility, cess or filing obligations.
- Enter your own values and choose the applicable calculation options.
- Review the breakdown and assumptions; change one input to compare a scenario.
- Download the calculation CSV to retain your inputs and result for independent checking.
Limits and checks
Inputs are validated locally. Results are estimates using the stated model, without live market data, automatic tax classification or personalized financial advice.
Frequently asked questions
What assumptions does the gst calculator use?
Enter the applicable GST rate yourself. Inclusive mode extracts tax from a tax-inclusive amount. CGST/SGST amounts divide the tax equally; the interstate view shows IGST. This does not determine classification, eligibility, cess or filing obligations.
Is my content sent to a server?
No. Processing runs inside your browser. Optional editor recovery saves a draft on this device only. Read the privacy policy.
Can I rely on this as a financial decision?
No. Check the model, inputs and assumptions independently. Real borrowing costs, returns, fees and trading losses can differ. Consult a qualified professional when appropriate.