Backing GST out of a till total
A shop rings up 11,800 including GST and needs the pre-tax value for its books.
- Inclusive amount
- 11,800
- GST rate
- 18%
Result. Taxable value 10,000 and GST 1,800, being CGST 900 and SGST 900.
GST Inclusive Calculator
When a price already includes GST, this tool works backwards to reveal the base amount and the exact tax component.
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How to use the GST Inclusive Calculator
- 1Enter the GST-inclusive amount.
- 2Select the applicable GST rate.
- 3See the base price and the tax that was included.
Worked examples
Real figures, so you can see what the GST Inclusive Calculator produces before you start.
Frequently asked questions
What does GST inclusive mean?+
It means the price you see already contains GST, so the tax must be extracted rather than added.