Self-Employed Tax Calculator
Net income after tax · Super paid directly · GST excluded
Enter your income · GST auto-removed if registered
Super Rate
If you already pay yourself super (for example through your own company, or a second job as an employee), enter that rate here. It's used to check your concessional cap (the yearly limit on before-tax super contributions) alongside the voluntary contribution below.
GST Registered
Turnover over $75,000 · Auto-divides by 1.1
I have a HECS / HELP Debt
Include repayment in calculation
Medicare Exempt
e.g. certain visa holders
Voluntary Super Contribution (tax-deductible)
Personal deductible super contribution
Unlike an employee's salary sacrifice, your voluntary super contribution as a self-employed person also reduces your income for HECS/HELP repayment and MLS (Medicare Levy Surcharge) purposes. Both of these stay unchanged for employees who use salary sacrifice.
Weekly
Before Tax
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After Tax
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Fortnightly
Before Tax
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After Tax
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Monthly *
Before Tax
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After Tax
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Annually
Before Tax
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After Tax
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* Monthly shown for reference only
Enter your income to see your take-home pay
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Guides
Why GST is not part of your income
If you are registered for GST, the GST you add to invoices is collected on behalf of the tax office; it was never your money. This calculator works from your income excluding GST, which is the amount your income tax is actually assessed on.
Super is up to you
There is no employer paying super on top of your invoices. Anything you put into super comes out of your own earnings, so the calculator treats super as paid directly by you, and the net figure is what remains after tax and any contributions you choose to make.
Set money aside for tax
No one withholds tax from your invoices during the year. The tax this calculator shows is what you can expect to owe at assessment time, which is why many sole traders move that share of each payment into a separate account as they earn it.
Profit in, estimate out
The calculator taxes the figure you give it. There are no fields for business expenses, so the number to enter is your expected profit, not your invoiced revenue; type revenue and you will be setting aside tax on money you never kept. What counts as a deductible expense is between you, your records and your accountant, and it is settled before this page enters the story.
Timing also sits outside. Once you are in the system, the tax office collects through the year in instalments on its own schedule, and this page does not model that calendar. It answers a narrower question well: across the whole year, how much of what you earn is not yours to spend.