Need to know how much GST you're paying on that latest purchase? Need to know how much GST to lump on top of that sweet invoice you're sending away? And you're in New Zealand? Great! That's what this app does, and it's all this app does.
Punch in a number, then hit "Add GST" to see what that number would look like with 15% added onto it. Or hit "Remove GST" to see what it would have looked like before the IRD stamped their mark on it.
Double-tap any of the small totals to copy them to your clipboard, or double-tap the big number to copy the whole lot. Magic.
Now in version 2.0, upgrade to NZ GST Pro to remove in-app advertising and unlock calculator functions for hours of tax calculation fun!