Free planning tool · 2025–26

Sole Trader Tax & GST Check

Get a quick view of your business profit, estimated additional income tax and whether GST registration may be required.

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Your business figures

Use your best estimate for the full 2025–26 financial year.

$

Total business sales, excluding GST. This is not your profit.

$

Only include expenses with a genuine business connection.

$

For example, salary, wages or investment income before tax.

Updates as you type

Your indicative check

Estimated business profit

$0

Estimated taxable income

$0

Additional income tax from business

$0

Indicative weekly tax reserve

$0

Based on 2025–26 Australian resident individual tax rates. Excludes Medicare levy, offsets, losses, HELP repayments and tax already paid.

GST registration may not be compulsory yet

Your turnover is below $75,000 and no taxi or ride share exception was selected. Check current and projected turnover each month.

GST threshold progress$0 / $75,000

Speak to a registered tax agent before acting on these figures. General estimate only — not tax advice. Results depend on the information entered and do not cover every tax rule or personal circumstance.

Your practical next steps

  1. 1Track turnover monthly against the $75,000 threshold
  2. 2Keep receipts and separate business from private expenses
  3. 3Put aside tax regularly instead of waiting for year-end
Rockapital

Want a registered tax agent to review your situation?

Turn this estimate into a clear tax, GST and BAS plan for your sole trader business.

General estimate only — not tax advice. Results depend on the information entered and do not cover every tax rule or personal circumstance.