It's only IR5000 to visit the museum. Next door you'll find another banking museum that charges IR10,000. Double the price for about half the interest. In both cases, it's the buildings that are the most interesting feature. The exhibits aren't anything to rave about.
Yes, the entrance fee is 5000 Rupiah per person. Well worth it. There is a nice restaurant in the basement.
Get quick answers from Museum Bank Indonesia staff and past visitors.