GST Reverse Calculator
Enter final price and GST % to recover the taxable base.
GST %
How to reverse-calculate GST
Recover the original taxable value from a GST-inclusive final price.
How it works
- 1Enter final price.
- 2Select GST %.
- 3Read original price and GST amount.
Frequently asked questions
When do I need reverse GST?
When you only know the shelf / final price including tax.