GST CalculatorBy admin / November 28, 2025 GST Calculator with PDF Slip GST Calculator + PDF Slip Calculate GST & Generate Professional Receipt Instantly Enter Amount GST Rate (%) 0% (Exempt) 5% 12% 18% 28% Australia 10% Singapore 9% Custom Rate Calculation Type Add GST (Exclusive) Remove GST (Inclusive) Calculate & Generate PDF Slip Result Original Amount: GST Rate: GST Amount: :