Union dues refer to the fees or contributions that members of a labor union are required to pay as part of their membership. These fees help support the operations and activities of the union, including negotiating contracts, providing legal representation, organizing new members, and advocating for worker rights. The amount of union dues varies depending on the specific union and its budgetary needs, but it is typically a fixed percentage of an employee's wages or salary. Union dues are often used to fund political activities that support labor-friendly candidates and causes, as well as providing benefits such as health insurance and pensions for members.