Practical tools and calculators for Australian small business owners.
Plain-English, free, and built for the Australian tax and regulatory environment. No sign-up, no upsell - just the numbers you need to make a better decision.
Sole trader vs Pty Ltd calculator
Compare net tax outcomes between operating as a sole trader and through a Pty Ltd company at your projected revenue. Uses 2025-26 ATO brackets, base-rate company tax (25%), Medicare Levy, and the 16% small business income tax offset.


Business Health Score
A 12-question diagnostic across cash flow, margin, tax readiness, and operations. Get a 0-100 score with the three highest-impact improvements you can make this quarter, plus a printable summary you can keep.
Coming to the toolbox
More free Australian-specific calculators and diagnostics. Subscribe to the briefing and you'll hear when each launches.
BAS readiness checker
A quarterly walk-through that flags the common BAS errors before you lodge: GST coding, capital purchases, PAYG withheld, and instalment income.
13-week cash flow forecast
A simple browser-based 13-week rolling cash forecast. Plug in opening balance, expected receipts, and fixed outgoings. See your weekly runway.
Instant asset write-off check
Quick yes/no on whether your planned purchase qualifies for the 2025-26 small business instant asset write-off, with a working example.
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The weekly briefing covers each new toolbox release with a worked example. Free, plain English, no sales pitch.
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