Japan to Move Most One-Year Spending Into Initial Budget, Citing Postwar-Scale Reform

Finance Minister Satsuki Katayama said Japan is carrying out the largest overhaul of its budget system since the end of World War II. The government plans to place as much one-year spending as possible into the initial budget instead of depending on later supplementary packages. Katayama spoke at a news conference on Tuesday.

“As for budget system reform, this is clearly the biggest overhaul since the end of the war,” he said. ” Authorities aim to cut the country’s annual use of extra budgets for unexpected spending needs. The change would alter a long-standing practice in which supplementary packages are routinely approved each year.

It remains unclear whether the planned shift would rank as postwar Japan’s single largest budget reform. The article was published on June 9, 2026.