The National Bank of Hungary has filed a complaint alleging suspected breach of fiduciary duty, negligent management, fraud and abuse of office in connection with the loss in value of five properties. An audit of MNB-Ingatlan Kft. found significant overvaluation of real estate investments, while property appraisals were substantially below book values, indicating that the central bank may have suffered a financial loss. The action supplements a complaint filed in October 2025 concerning the renovation of the central bank’s new headquarters, with those proceedings now entering the investigative stage. The expanded complaint covers the Balatonakarattya Educational and Training Centre, House of Wisdom, the MNB’s Buda Headquarters, the MNB Supervisory Centre and Money Museum, and the Pallas Athéné Conference Centre.