Japan Post Bank

Banking · Financial services · Chiyoda, Tokyo

Japan Post Bank is the only bank in the Japan Post Group and serves a wide range of individual customers, mostly through post offices across Japan. Its retail business covers savings deposits, remittance and settlement, and asset-management services. As of March 31, 2026, it held about 120 million ordinary deposit accounts and roughly ¥186 trillion in deposits, through a network of 23,306 branches.

Its market business invests these deposits in securities in Japanese and international markets and accounted for about 88% of revenue as of March 31, 2026, with fees and commissions making up the rest. Japan Post Holdings held approximately 49.87% of the bank's shares at that date. The bank had 10,659 employees as of March 31, 2026.