🇦🇺 COUNTRY A Australia VS 🇫🇷 COUNTRY B France

France and Australia host meaningful bilateral expat communities — Australians in Paris and the south of France, and French nationals working in Sydney, Melbourne, and Brisbane. The Australia-France Double Taxation Agreement (DTA) coordinates tax obligations between the two countries. For Australians moving to France: French residents face IRPP income tax (0–45%) plus social charges. Employee social contributions (CSG/CRDS of 9.7% on 98.25% of salary, plus pension and other charges) come to about 20–21% of gross pay at the incomes shown, and CSG/CRDS alone push the combined marginal burden above 50% for higher earners. For French tax residents in the 45% bracket (taxable income above €181,917 per tax part for 2025 income, filed in 2026), the combined rate exceeds Australia's 47% top rate. For French nationals moving to Australia: Australia's progressive rates (0–45% federal plus 2% Medicare levy) are comparable to France for middle incomes but lower at the top on purely income-tax terms. Australia's superannuation system (compulsory 12% employer contributions) is a significant benefit not present in France in the same form — though France has its own comprehensive social security system. Australia's tax-free threshold (A$18,200) provides a clean zero-rate band. France's household-based quotient familial system benefits families differently from Australia's individual-based assessment. Both countries tax residents on worldwide income. The Australia-France DTA prevents double taxation, with Foreign Tax Credit mechanisms for overlapping obligations. Australia has no state/territory income tax (unlike the US), making the federal comparison direct.