PDFandMore24GST Calculator
Calculate GST and final amount.
GST Calculator
Calculate GST added to a pre-tax price or separate GST from a tax-inclusive price. Enter the applicable GST rate for your jurisdiction.
For an exclusive price, GST = price × rate ÷ 100. For an inclusive price, pre-tax price = total ÷ (1 + rate ÷ 100).
Browser-based processing is used where supported. Review each tool's privacy notes before entering sensitive information.
About GST Calculator
Use this GST calculator to add GST to a pre-tax price or remove GST from a tax-inclusive total. Enter the rate required by your tax jurisdiction and review the GST amount and net price.
How to use it
- Choose whether the entered price is before or including GST.
- Enter the price.
- Enter the GST percentage.
- Review the GST amount and resulting price.
Key Features
- ✓ Add GST to a net price
- ✓ Remove GST from an inclusive price
- ✓ Shows GST amount
- ✓ Shows pre-tax and final values
- ✓ Browser-based calculation
Frequently Asked Questions
How do I add GST?
Choose Price before GST, enter the net price and rate, then calculate the GST amount and total.
How do I remove GST?
Choose Price including GST. The calculator divides the total by 1 plus the GST rate divided by 100.
Does this determine my legal tax rate?
No. Use the rate required by your tax authority or invoice rules.