Nauru uses the Australian dollar as legal tender, which the IMF's September 2025 consultation explicitly confirms. The Reserve Bank of Australia's cash-rate framework supplies the monetary setting of that currency; Nauru's own policy choices centre on fiscal management, financial regulation and service access rather than an independent national interest-rate cycle. The bilateral treaty requires Australian support for access to the international financial system alongside stronger Nauruan regulatory enforcement. The IMF assessment also emphasised coordination and contingency planning during the transition to a new commercial bank. These are distinct financial issues: using a major currency does not itself guarantee uninterrupted payments, correspondent relationships or access to local credit.
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