Central banks play a crucial role in developing a country's monetary policy and currency management.

Central banks often issue policy statements or hold press conferences at the end of fiscal years, guiding future monetary policy. These communications can influence market expectations and impact currency values. They also manage foreign exchange reserves and adjustments to their reserve portfolios can affect the value of currencies. Depending on their needs at the end of the year, this could lead to repatriation or the expenditure of their currency. Also, central banks may publish reports on the economic outlook for the coming year, which could provide an overview of future policy decisions.