Aussie GST Calculator

Calculate GST instantly for Australia and New Zealand with our beautifully designed, precise calculator. SIMPLE & ACCURATE • Calculate GST from prices including or excluding GST • Switch between Australia (10%) and New Zealand (15%) with one tap • Precise decimal arithmetic ensures accurate financial calculations • Support for values up to $999,999,999.99 CALCULATION HISTORY • Automatically saves your last 10 copied calculations • View timestamps and full calculation details • Quickly reference previous calculations • iCloud sync keeps history across all your devices BEAUTIFUL DESIGN • Clean, modern interface that's easy on the eyes • Light & dark mode support • 5 accent color themes to personalize your experience • Optimized layouts for iPhone, iPad, and Mac WORKS EVERYWHERE • Universal app for iPhone, iPad, and Mac • iPad sidebar navigation for productivity • Mac menu bar access for quick calculations • No internet connection required - works offline Perfect for business owners, accountants, freelancers, retail workers, and anyone who needs to calculate GST quickly and accurately. No ads. No subscriptions. No data collection. Just a simple, powerful calculator.