Understanding Australia's Progressive Tax System
Australia operates a progressive tax system where higher income earners pay higher tax rates. The tax-free threshold of $18,200 means the first $18,200 of income is completely tax-free for Australian residents. Tax brackets for 2024-25 and 2025-26 are: 16% on income from $18,201 to $45,000, 30% on income from $45,001 to $135,000, 37% on income from $135,001 to $190,000, and 45% on income exceeding $190,000. For example, someone earning $85,000 annually pays $16,288 in income tax (zero on first $18,200, $4,288 on the next $26,800 at 16%, and $12,000 on the remaining $40,000 at 30%). Combined with the 2% Medicare Levy ($1,700), their total tax is $17,988, leaving $67,012 net income (effective tax rate of 21.2%). The progressive system ensures those with greater capacity to pay contribute more while protecting low-income earners. Understanding your tax bracket helps optimize salary packaging, deductions, and retirement contributions.