Australia is on track for significant gains in life expectancy over the next four decades, with women projected to reach their late 80s and men their mid-80s by 2065–66. These improvements reflect the cumulative benefits of universal healthcare access, medical advances, and rising living standards that have strengthened population health outcomes.

However, the ageing population will create mounting pressure on government budgets and public services, particularly as smaller household sizes reduce informal family support networks. Treasury assessments highlight growing costs for aged care, healthcare, and pensions, while medical professionals stress that extending lifespans must be paired with stronger preventive care and chronic disease management to ensure these additional years provide adequate quality of life.