GST Calculations
From EnablerWiki
Created: 6 August 2010. Last Reviewed: 6 August 2010
GST Calculations
It's often useful to have a quick calculation to determine GST content of GST inclusive amounts.
The usual rules are:
Australia (10%): GST is 1/11th of total
NZ (12.5%): GST is 1/9th of total
NZ (15%): GST = "total times 3 divided by 23". E.g.. $115 x 3 / 23 = $15.
