Tonga vs Australia
Tax Rate Comparison
Enter your income below for a personal tax estimate, then scroll down for full rate breakdowns.
💰 Personal Income Tax Calculator
Enter your income to see your estimated annual tax liability in each country — side by side.
Individual Income Tax (Top Marginal Rate)
VAT / GST / Sales Tax
Corporate Tax Rate
Capital Gains Tax
Social Security & Payroll
🇹🇴 Tonga — Tonga Tax System
Tonga levies income tax at a flat 20% on income above the personal allowance. No capital gains tax. Consumption tax at 15% replaced the previous sales tax. The economy is heavily reliant on remittances (over 40% of GDP) from Tongans abroad, mainly in Australia, New Zealand and the US. Agriculture and fishing are the main domestic sectors.
🇦🇺 Australia — State & Territory Taxes
Australia's 6 states and 2 territories levy payroll tax (4.75%–6.85%), stamp duty on property, and land tax on investment properties. There is no state income tax — income tax is federal only. The Stage 3 tax cuts (effective July 2024) restructured brackets significantly. The ACT is progressively replacing stamp duty with broad-based land value tax. Councils levy rates on property owners.
Tonga vs Australia: Key Tax Differences (2026)
💰 Income Tax: 🇦🇺 Australia has a higher top income tax rate (0–20% vs 0–45%). 🇹🇴 Tonga is more favourable for high earners.
🛒 VAT/Sales Tax: Tonga has a higher consumption tax (15% vs 10%).
🏢 Corporate Tax: 🇹🇴 Tonga offers a lower corporate rate (25% vs 30%), which can influence business location decisions.
📈 Capital Gains: 🇹🇴 Tonga taxes investment gains at a lower rate (0% vs 22.5%), benefiting investors.