The Indonesian Rupiah (IDR / Rp) is the official currency in Bali. The name derives from the Indian monetary unit rupee. Informally, Indonesians also use the word “perak” (’silver’ in Indonesian) in referring to rupiah.

Below, you see all the banknotes in rupiah, that are accepted in Indonesia.
The values are: Rp 100,000 - Rp 50,000 - Rp 20,000 - Rp 10,000 - Rp 5,000 - Rp 1,000

The coins are divided in the following values (see image below)
Rp 25 (very rare) - Rp 50 (rare) - Rp 100 - Rp 200 - Rp 500 - Rp 1000
Because of the low value and shortage of the small coins, it’s very common to get sweets in supermarkets as change-money, instead of the last few rupiah.

The first rupiah was introduced in 1945. During the Indonesian War of Independence (1945-1949), the rupiah circulated alongside the Netherlands Indies gulden (including issues of the Japanese government, the Javanese Bank (Java rupiah) and the Dutch Government (NICA gulden)) and the Netherlands Indies roepiah, which had also been issued by the Japanese government. By the end of 1949, the Republic’s rupiah had replaced the other currencies throughout Indonesia.