Contractor Tax Calculator Australia 2026-27

Estimate income tax, Medicare levy, and GST obligations for sole traders and ABN contractors using 2026-27 ATO rates.

Your Details

Annual Gross Income ($)

Business Expenses ($)

Registered for ABN (sole trader)

Results

Enter your income to calculate

Contractor vs Employee

Contractors pay their own tax via PAYG instalments, must manage super (if required under super guarantee rules), and can claim business deductions. Employees have tax withheld by their employer. Use our pay calculator for employee scenarios.

How the Contractor Tax calculator works

This free contractor tax calculator runs entirely in your browser using standard mathematical formulas. Enter your figures, tap Calculate, and results update instantly — no signup required.

Figures are estimates for general information. Always verify important decisions with a qualified professional where relevant.

Input your values using the fields above (numeric keypad on mobile).
Results use precise floating-point arithmetic rounded for display.
Refresh or change inputs and recalculate anytime.

Worked example

Choose typical values for a common contractor tax scenario.
Enter those values in the calculator fields above.
Tap Calculate and compare the on-screen result with the expected formula outcome.
Adjust one input at a time to see how the result changes.