AUSFA-0004 · gpt-5.6-sol (high)
**$190,001** taxable income.

Working: the 45% marginal rate applies to taxable income **over $190,000**, so the top bracket starts at **$190,001**. The Medicare levy is separate.

The rates are set by the **Australian Parliament** under the *Income Tax Rates Act 1986 (Cth)*.