In today's global economy, businesses frequently operate across borders, serving international markets with a diverse workforce. Human resource (HR) systems play a critical role in managing such workforces, ensuring compliance and efficiency in a multitude of HR tasks. One crucial aspect that modern HR systems must cater to is the support for multiple currencies, such as the South Korean Won (KRW), Japanese Yen (JPY), Chinese Yuan (CNY), Hong Kong Dollar (HKD), Singapore Dollar (SGD) and others. In this article, we will explore the importance of different currency support for HR operations in global businesses and the drawbacks of HR systems without currency support.