Japan's social security benefit spending reached 138.3 trillion yen in fiscal year 2024, marking the second-highest total on record [1].
The increase signals a return to rising costs after three years of stability, highlighting the persistent financial pressure of an aging population on the national budget.
According to the National Institute of Social Security and Population Issues, the total expenditure of 138.3 trillion yen represents the first increase in three years [1]. This follows a previous total of 135.4 trillion yen in fiscal year 2023 [7].
Rising pension costs drove a significant portion of the growth. Pension benefits increased by 1.45 trillion yen compared to the previous year [4]. Additionally, spending on welfare, and other benefits grew by 2.08 trillion yen [5].
However, medical benefit spending trended in the opposite direction. Medical expenditures decreased for the second consecutive year [6]. Officials said this decline was due to the reduction of spending specifically allocated for COVID-19 countermeasures [1].
The fiscal year in question covers the period from April 2024 through March 2025 [1]. The data underscores a shift in spending priorities as emergency pandemic funding fades and long-term demographic obligations increase.
“Japan's social security benefit spending reached 138.3 trillion yen in fiscal year 2024”
The divergence between falling medical costs and rising pension and welfare spending suggests that while pandemic-era anomalies are normalizing, the structural challenge of Japan's demographic shift remains. As the population ages, the growth in pension outlays creates a permanent baseline of spending that is less volatile than emergency health expenditures, potentially tightening future fiscal space.
