A payroll calendar is a calendar that tracks when employees are due to be paid. Companies pay their employees on different schedules, and to reflect that, there are many different types of payroll calendars, including weekly calendars, bi-weekly calendars, and monthly calendars.
Typically, companies use some sort of software to manage their payroll calendar. This way, companies can see when employees are due to be paid, and what those employees are owed. Payroll software makes it far easier for a company to manage these kinds of expenses.
Payroll also tracks the total amount of money that a company has paid its employees and any bonuses that employees are receiving. Because keeping track of wages can be challenging, many companies have a payroll department that manages this list.