Tokyo Core Inflation Slows to 2.3% in December, BOJ Signals Further Rate Hikes

Tokyo's Core Inflation Decelerates in December

Core consumer prices in Japan's capital, Tokyo, saw a deceleration in December 2025, with the index excluding fresh food rising by 2.3% year-on-year. This figure, released by the Ministry of Internal Affairs and Communications, marked a slowdown from the 2.8% recorded in November and came in below market forecasts of 2.5%. It represents the first deceleration in Tokyo's core CPI since August 2025 and the lowest reading since February 2025.

Despite the easing, the inflation rate in Tokyo remained above the Bank of Japan's (BOJ) 2% price stability target, indicating persistent underlying price pressures. The overall Consumer Price Index (CPI) for Tokyo, which includes fresh food, increased by 3.0% year-on-year in December. The 'core-core' CPI, which excludes both fresh food and energy prices, also saw an increase of 1.8% year-on-year, though this was a slight decline of 0.1 percentage points from the previous month.

Bank of Japan's Stance on Price Stability

The Bank of Japan maintains a steadfast commitment to its 2% inflation target, which it set in January 2013 to ensure the sound development of the national economy. BOJ Governor Kazuo Ueda has consistently stated that the nation's underlying inflation is gradually accelerating and steadily approaching this target.

In a significant move earlier in December, the BOJ unanimously voted to raise its policy interest rate by 25 basis points to 0.75%, marking the highest level since 1995. This decision underscored the central bank's growing confidence in achieving sustainable inflation, driven by factors such as firms' wage- and price-setting behavior.

Outlook for Future Monetary Policy Adjustments

Even with Tokyo's core inflation showing signs of cooling, the consensus among economists and BOJ officials points towards a continued path of monetary policy tightening. Governor Ueda has indicated that the central bank is prepared to implement further adjustments to policy rates if economic and price forecasts align with its outlook. He emphasized that maintaining excessively low interest rates during an economic recovery could lead to an overly loose monetary environment.

Analysts anticipate that the BOJ may raise rates approximately every six months, with the terminal rate potentially reaching around 1.25%. A crucial factor influencing the timing and pace of future rate hikes will be the outcome of the annual spring wage negotiations, known as 'Shunto', typically held in March-April 2026. These negotiations are seen as vital for ensuring that wage growth supports sustained inflation.