Whenever you go overseas you will find the money is different and, you cannot pay using Australian money; Bali is no different. Not everything can be paid for with a credit card, so you need to use Bali currency, the Rupiah or Rp when abbreviated. Larger hotels will take credit cards, while smaller accommodation such as some Bali Villas and guesthouses do not.
Why cash is important
So make sure you have plenty of cash for the small things you will need such as drinks and snacks, transport and other things that don’t cost a lot. Many smaller boutique stores and cafes won’t be able to change a large note so it’s important to have smaller ones. Keep larger notes for purchasing high ticket items.