The Japanese government-issued dollar was a form of currency issued for use within the Imperial Japan-occupied territories of Singapore, Malaya, North Borneo, Sarawak and Brunei between 1942 and 1945.

Following the fall of Singapore into the hands of Imperial Japan on 15 February 1942, the Japanese introduced new currencies to replace those previously in use in the occupied territories of Malaya, North Borneo, Sarawak and Brunei.

Although new coins, bearing the name "Malaysia" and dated under the Japanese calendar, were planned for the region by the Osaka Mint, they never made it past the concept stage and only a few rare patterns exist.

[1] Sharp drops in the currency's value and increased price of goods frequently occurred following a Japanese defeat in battle abroad.

Those with hidden stashes of the old dollars were able to use them the moment the British resumed control of Singapore and surrounding colonies, when they became valid again.

A number of surviving occupation banknotes were stamped as war souvenirs, while their use as printing paper for rudimentary calendars for 1946 was also recorded.

The present value of the currency as a collector's item remains mixed depending on their condition, the presence of serial numbers, the use of woven paper, and their use as specimens.

[1] The currency – both dollars and cents – was released solely in the form of banknotes, as metals were considered essential to the war effort.