Reverse GST Calculator (AU)
From GST-inclusive price: GST = total / 11; ex-GST = total × 10/11.
⚠ 2024-25 Australian tax-year figures. Estimates only — consult the ATO or a registered tax agent.
About this tool
Reverse GST Calculator (AU) is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Tax & Government — Australia. Browse more Tax & Government — Australia tools.