5 Yen

The Bank of Taiwan was a colonial institution chartered in 1899 to manage Japanese financial interests across Taiwan, and its notes circulated not only on the island but throughout Japan's broader Pacific sphere — the South China coast, parts of Southeast Asia, and the Nanyo trading zone. By the mid-1930s the bank had become deeply entangled in military financing, and this series ran through the early war years partly to supply those expanded obligations.

The Cabinet Printing Bureau, Naikaku Insatsukyoku, was Japan's primary security printer and handled the full run. Wartime paper shortages affected later printings in this series — notes from the 1940–1942 portion tend to show thinner, more fibrous stock than earlier impressions.