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Best Australian Tax Calculators Online (2025)

Free Australian tax calculators for income tax, Medicare Levy, self-employment, and payroll. ATO-aligned rates for the 2024–25 financial year.

Guide Overview

These free Australian calculators cover income tax brackets, Medicare Levy, Medicare Levy Surcharge, and employer payroll with superannuation. All tools use ATO rates for the 2024–25 financial year.

Focus: free Australian tax calculators for employees, sole traders, and employers

Australian Income Tax Brackets

Australia uses a progressive tax system with a tax-free threshold of $18,200. Above that, rates climb from 19 cents per dollar up to $45,000, 32.5 cents up to $120,000, 37 cents up to $180,000, and 45 cents on income above $180,000. Our calculator applies the correct marginal rates and includes the low-income tax offset (LITO) and low-and-middle-income tax offset (LMITO) where applicable.

Medicare Levy and MLS for Sole Traders

All Australian taxpayers pay a 2 percent Medicare Levy on taxable income. If you earn above $93,000 and do not hold an appropriate level of private health insurance, you also face the Medicare Levy Surcharge at 1 to 1.5 percent. Our self-employment calculator shows both levies and your effective rate so you can factor them into your quarterly BAS payments.

Australian Employer Payroll

Australian employers must pay the super guarantee (currently 11.5 percent) on top of ordinary time earnings, along with PAYG withholding to the ATO. Our payroll calculator produces a full cost breakdown showing employer superannuation, PAYG tax, and employee net pay for any salary level.

Tools in This Guide

Use these tools in sequence based on your workflow needs.

Frequently Asked Questions

Are these Australian calculators free?
Yes. All Australian tools on ConvertCrunch are completely free with no signup and no data uploads.
Do the calculators include the Medicare Levy Surcharge?
Yes. The self-employment calculator checks whether you hold private health insurance and applies the MLS at the correct tier if applicable.
What financial year do the Australian calculators use?
The Australian calculators use 2024–25 ATO rates. We update them each July when the new financial year begins.

Last updated: June 1, 2025