SOURCE-AWARE TAX AND PAY SCENARIOS
GST Inclusive / Exclusive Calculator
Calculate a base and GST split from either a GST-inclusive amount or a GST-exclusive amount using the rate you enter.
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Your result
Ready when you are.
Enter your values and choose Calculate. Your inputs stay on this device.
How it works
Inclusive base = total ÷ (1 + rate). Exclusive total = base × (1 + rate). GST is the difference.
Assumptions and limits
The applicable rate and treatment must be verified independently. This does not determine invoice, supply, credit, or filing requirements.
About this calculator
Use this tool to make the GST portion visible when an amount already includes GST or when you need to add it.
What this tool helps you check
Split an inclusive amount or add GST to an exclusive amount using a rate verified for the transaction.
How to use it
- Check the assumptions shown for this gst inclusive / exclusive calculator before entering a scenario.
- Choose whether the amount includes GST, then enter the amount and the rate you have verified.
- Select Calculate to keep the inputs and method visible beside the result.
- Verify supply type, invoicing, credits, and return treatment separately.
Source and update
Last reviewed: 2026-08-10
GST Portal — official taxpayer servicesFrequently asked questions
What does this gst inclusive / exclusive calculator estimate?
Use this tool to make the GST portion visible when an amount already includes GST or when you need to add it.
Can I enter amounts in lakhs or crores?
Yes. Enter the full rupee amount or an equivalent decimal value. Results are formatted with Indian number grouping for readability.
Is the result an official quote, filing, or recommendation?
No. It is an educational estimate based on the values entered. Verify a financial, tax, payroll, or investment decision against the applicable official record or provider.
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