Australia
Sole-trader assessable income at marginal rates up to 45% + 2% Medicare. Hold an ABN, pay via PAYG; PSI rules likely limit deductions. Crypto is income at AUD value on receipt.
Assessable business income of a sole trader. Personal Services Income (PSI) rules likely apply. Not a CGT event (paid for activity, not disposing capital).
2025–26 marginal: 0% to $18,200; 16%; 30%; 37%; 45% — plus 2% Medicare levy.
No separate self-employment social tax; 2% Medicare levy. Super is self-funded for sole traders.
Operate as a sole trader with an ABN; report in the individual return; pay PAYG instalments. GST registration if turnover ≥ A$75,000.
USDC is ordinary income at AUD value on receipt; as a trading business, crypto is trading stock (no 50% CGT discount).