Everything a one-person Aussie business needs to price, invoice, chase, claim and plan. Five offline tools, one download:

1. Sole Trader Toolkit 2026–27. What should I charge? How much tax and super should I set aside? Plus an ABN checker and a GST tax invoice saved as PDF.
2. Price, Markup & Margin Calculator. Prices after marketplace and card fees plus GST, margin vs markup, a discount break-even check, and a bulk price list exported to CSV.
3. Late Payment Chaser. An unpaid-invoice tracker, reminder emails and SMS at 4 stages, and a late fee/interest calculator.
4. WFH & Car Deduction Estimator. The ATO fixed rate, cents per km (91c in 2026–27), and whether to itemise or take the new $1,000 standard deduction.
5. Fair Rent & Bills Splitter. Split rent by room, split bills by days at home, and check a rent increase with a drafted reply (handy for share-house sole traders).

• Works in any browser on a computer, tablet or phone. No login, no subscription, no internet.
• Your data stays on your device.
• 2026–27 ATO figures were checked on ato.gov.au (Nov 2026). Free updates for the year.

General information only, not tax, financial or legal advice. Built with AI assistance and checked by hand.

At US$24.99, it costs less than buying the five tools separately (US$46.95).