Our Mission
Australian Tax Calculator was built with a simple goal: to give every Australian access to clear, accurate, and free tax information — without needing to pay an accountant just to understand their own payslip.
Australia's tax system is genuinely complex. Between progressive tax brackets, the Medicare Levy, LITO, HELP repayments, superannuation, and the ever-changing rules around deductions, it's easy to feel lost. Most online calculators give you a number but don't explain why. We wanted to change that.
Every tool on this site is designed to be transparent — showing you the full breakdown of how your tax is calculated, not just the bottom line. We believe that when people understand their tax, they make better financial decisions.
What We Offer
Income Tax Calculator
Calculate your income tax, Medicare Levy, LITO, HELP repayment, and take-home pay for any financial year from FY2021–22 to FY2025–26. Compare multiple years side by side.
Open tool
PAYG Withholding Calculator
Estimate how much your employer withholds from your weekly, fortnightly, or monthly pay. Covers residents, foreign residents, and working holiday makers.
Open tool
Tax Deduction Finder
Find every ATO-recognised work-related deduction for your specific occupation. Covers 50+ jobs across 15 industries — from nurses and teachers to tradies and IT professionals.
Open tool
Retirement & Super Planner
Three tools in one: project your super balance to retirement, find your ASFA savings target, and check how long your money will last in drawdown.
Open tool
Business Benchmark Checker
Compare your client's financials against ATO small business benchmark ranges across 80+ industries. Identify ATO audit risk areas before lodgement.
Open tool
Australian Tax Guide
A comprehensive plain-English guide to how Australian income tax works — covering brackets, offsets, super, deductions, lodgement, and year-end planning.
Open tool
Our Methodology & Data Sources
All calculations on Australian Tax Calculator are based on publicly available data published by the Australian Taxation Office (ATO). We do not use proprietary data, estimates, or third-party modelling. Our sources include:
ATO Tax Rates & Thresholds
Income tax brackets, Medicare Levy thresholds, LITO phase-out rates, and HELP repayment rates are sourced directly from the ATO's published schedules for each financial year.
ATO Small Business Benchmarks
Benchmark ranges for the Business Benchmark Checker are sourced from the ATO's official small business benchmark data, updated annually based on tax return data.
ASFA Retirement Standard
Retirement income targets used in the Retirement Planner are based on the ASFA (Association of Superannuation Funds of Australia) Retirement Standard, updated quarterly.
ATO Occupation Deduction Guides
Deductions listed in the Deduction Finder are based on the ATO's published occupation-specific deduction guides and general work-related expense rules.
All calculations are performed entirely in your browser — no data is sent to any server. We do not collect, store, or share any financial information you enter into our calculators.
Accuracy & Updates
We take accuracy seriously. Every calculator is reviewed and updated at the start of each financial year (1 July) to reflect the latest ATO rates, thresholds, and legislative changes. We also update mid-year when the ATO publishes changes to withholding schedules or benchmark data.
However, tax law is complex and changes frequently. While we make every effort to keep our tools accurate, we cannot guarantee that every calculation will match your actual tax assessment. Individual circumstances — such as investment income, rental properties, business income, private rulings, or amended assessments — can significantly affect your actual tax liability.
Found an Error?
If you believe a calculation is incorrect or a rate is out of date, please let us know. We review all reports and update the tool as quickly as possible.
austaxcalc@gmail.comPrivacy & Data
Australian Tax Calculator is designed with privacy in mind. All calculations happen entirely in your browser using JavaScript — no financial data you enter is ever transmitted to our servers or stored anywhere.
We use Google Analytics to understand how visitors use the site (page views, device types, geographic region). This service may use cookies. We do not sell or share any personal data with third parties beyond what is required for this standard analytics service.
For full details, please read our Privacy Policy.
Important Disclaimer
Australian Tax Calculator is an independent website and is not affiliated with, endorsed by, or connected to the Australian Taxation Office (ATO), ASIC, APRA, or any government body.
All information and tools on this site are provided for general educational and informational purposes only and do not constitute financial, tax, or legal advice. Results are estimates based on publicly available ATO data and simplified assumptions.
Your actual tax liability may differ based on your individual circumstances. Always consult a registered tax agent or accountant for advice tailored to your situation. You can also contact the ATO directly at ato.gov.au or by calling 13 28 61.
Get in Touch
Have a question about a calculation? Spotted an error? Want to suggest a new feature or occupation? We'd love to hear from you. We read every email and aim to respond within 2 business days.
austaxcalc@gmail.com