GST Calculator - GSTPro

Calculate GST the way businesses actually work, add or remove tax on the fly, with every step recorded on a visible tape, just like an adding machine. BUILT FOR GST Standard 15% rate built in, plus custom keys for long-term accommodation rate. Reverse GST calculations use the correct fraction method (3/23) prescribed by Inland Revenue, so exclusive and inclusive totals always reconcile exactly. RUNNING TAPE Every number, operator, and GST step is written to a scrollable tape. Tap any past result to branch off it. ADD & REMOVE GST IN ONE CHAIN Dedicated +GST and GST keys sit right on the keypad alongside standard arithmetic, percent, markup/margin, and memory keys. Chain multiple GST operations, multiplications, and adjustments in a single session. SESSION TOTALS A live strip shows running Exclusive, GST, and Inclusive totals for the whole tape, broken down by rate if you use more than one. CUSTOMISABLE RATES Edit all four quick-rate keys to match historical rates or any custom figure, inputs accept decimals like 12%. HISTORY & SHARING Every session is saved and searchable. Pin favourites, restore any past tape back to the calculator, or share a session as text or image. PRIVATE BY DESIGN Fully offline. No account, no sign-in, no network calls, no ads, no analytics. Every feature is available to every user, always. Download and get every GST calculation right the first time. You may purchase an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase Privacy policy: https://plainraw.com/raw/9d4081889a5d Terms of service: https://plainraw.com/raw/a4aa0b172035