GST Inclusive Calculator
Extract the base amount and GST from a tax-inclusive amount using your entered combined tax rate.
How to use GST Inclusive Calculator
- Enter Amount, Total tax / GST rate (%).
- Choose Run tool to calculate or generate the result.
- Check the result and the limitations below before reusing it.
A practical example
Options:
{
"amount": 1000,
"rate": 18
}
Example result:
{
"baseAmount": 847.457627119,
"tax": 152.542372881,
"combinedTax": 152.542372881,
"total": 1000
}Limitations and common mistakes
Rate is supplied by you; this does not determine tax liability or applicable GST rules. CGST/SGST each show half the entered combined rate.
Rate is supplied by you; this does not determine tax liability or applicable GST rules. CGST/SGST each show half the entered combined rate.
Questions about GST Inclusive Calculator
What input does GST Inclusive Calculator need?
Input options: Amount, Total tax / GST rate (%).
What does GST Inclusive Calculator return?
Calculated result fields: baseAmount, tax, combinedTax, total.
What should I check before using GST Inclusive Calculator results?
Rate is supplied by you; this does not determine tax liability or applicable GST rules. CGST/SGST each show half the entered combined rate.
How do I remove GST from an inclusive total?
Base amount = inclusive total ÷ (1 + rate ÷ 100). With 1,180 and an entered 18% rate, the base is 1,000 and the included GST is 180.
Supported input and output
Input options: Amount, Total tax / GST rate (%).
Calculated result fields: baseAmount, tax, combinedTax, total.