About Reverse GST Calculator
A free, reliable tool designed to help Australian businesses, freelancers, and accountants calculate GST accurately.
A free, reliable tool designed to help Australian businesses, freelancers, and accountants calculate GST accurately.
We built Reverse GST Calculator to simplify one of the most common financial challenges faced by Australian businesses – accurately calculating net amounts from gross prices.
Whether you're a freelancer handling invoices, a small business owner managing accounts, or an accountant processing multiple clients, you need a quick, accurate way to extract GST and separate it for tax returns and accounting records.
That's exactly what we provide – free, simple, and ATO compliant calculations at your fingertips.
Calculate results in seconds, not minutes
No subscription, no hidden fees, ever
Using ATO recommended formulas
Our tools are built with Australian businesses in mind
Extract GST instantly from gross amounts. Calculate net values for Australian GST rate: 10%, and GST-free items: 0%.
Stay updated with current GST rates, thresholds, and changes. Perfect reference for accountants and business owners.
Comprehensive guide to GST for small businesses, freelancers, and contractors in Australia.
Our tool is trusted by thousands of Australian professionals
Calculate GST on invoices and expenses for accurate self-assessment returns
Separate net and GST for accounting software and quarterly ATO returns
Process multiple client invoices quickly and accurately with precision
Manage TPRS reporting and reverse charge GST with accuracy
Built on solid principles and trusted by professionals
Our calculator uses the exact reverse GST formula recommended by ATO. Net = Gross ÷ (1 + GST Rate/100)
All calculations happen locally in your browser. Your data is never stored or sent to our servers.
We continuously test and verify our calculations against real BAS (Business Activity Statement) to ensure absolute accuracy.
No subscriptions, no hidden fees, no premium versions. It's free for everyone, forever.
Use our free reverse GST calculator to instantly extract GST from any price
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