Self-Employed & Sole Traders · FY2025-26 Edition
Self-Employed & Sole Trader Tax Calculator
Freelancers, contractors, consultants — income, GST/BAS, home office, and the $20k instant asset write-off in one workbook.
What's inside
- ✓Business income & expense tracker mapped to the sole-trader business schedule
- ✓$20,000 instant asset write-off helper for tools, tech and equipment
- ✓Cents/km vs logbook car comparison, and 70c/hr vs actual home office
- ✓Quarterly BAS / GST estimator once you're registered ($75k threshold built in)
- ✓Net business income → tax estimate, with the non-commercial loss warning
- ✓Current FY2025-26 rates on a sources tab with ATO links — nothing hard-coded
- ✓Tax saving estimate at your marginal rate (estimate only)
- ✓Record-keeping checklist matched to ATO substantiation rules
- ✓Print-ready one-page summary for your accountant
- ✓Medicare levy exemption + deductible super contribution support
- ✓No macros. Protected formulas. Works in Excel & Google Sheets.
Myth check — things you can't claim
- ✗Private-use portion of expenses isn't deductible
- ✗Drawings aren't a business expense
- ✗Home occupancy costs can trigger CGT on your home
The full myths tab inside the workbook covers your occupation's complete list, straight from the ATO occupation guide.
General information only — not tax, legal or financial advice. This workbook applies published ATO rates and rules for FY2025-26 but does not consider your personal circumstances. We are not registered tax agents. Confirm your position at ato.gov.au or with a registered tax agent.