About The Tool Shed
The Tool Shed is a free Australian salary and tax calculator built to give you a clear, accurate picture of your take-home pay. All calculations use the official 2025-26 ATO tax rates, brackets, and thresholds — updated each financial year.
Real-time calculations
Results update instantly as you type — no submit button, no waiting. Pure client-side maths using the latest ATO rates.
ATO-verified rates
2025-26 income tax brackets, Medicare Levy, HECS/HELP marginal repayments, SGC super rate (12%), LITO, and Medicare Levy Surcharge are sourced directly from the ATO.
Multi-scenario comparison
Build up to five scenarios side by side — compare two job offers, model a pay rise, or see the impact of salary sacrificing into super.
Reverse calculator
Work backwards from a target take-home pay to find the gross salary you need. Useful for salary negotiations.
Save & sync
Save your scenarios as a local file or sync to the cloud with a free account. Access your saved calculations from any device.
Data Sources & Accuracy
All tax rates used by this calculator are sourced from the Australian Taxation Office (ATO) and updated at the start of each financial year (1 July).
The calculator covers income tax (resident, non-resident, and working holiday maker rates), Medicare Levy, Medicare Levy Surcharge, HECS/HELP repayments, Superannuation Guarantee contributions, salary sacrifice, Low Income Tax Offset (LITO), and Low and Middle Income Tax Offset (LMITO where applicable).
Results are estimates only. Your actual tax assessment from the ATO may differ due to individual deductions, allowances, and other factors.
Disclaimer
This calculator is operated by Chas Walker as a personal project and is not affiliated with, endorsed by, or connected to the Australian Taxation Office or any government body. It is provided for informational purposes only and does not constitute financial, tax, or legal advice. We accept no liability for decisions made based on results from this tool. Always consult a registered tax agent or financial adviser for advice specific to your circumstances.
Feedback & Corrections
Found an error in the calculations, or have a suggestion for improvement? We genuinely want to know. Australian tax law changes frequently and accuracy is the top priority.
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