LOP, or Loss of Pay, is an important term in payroll that refers to salary deductions when an employee takes unpaid leave. This article explains the complete meaning of LOP, how it is calculated, and the situations in which it is applied. It also highlights the difference between LOP and other leave types, helping you better understand its effect on your monthly salary. With simple explanations and practical examples, this guide is useful for both employees and HR professionals who want to understand how unpaid leave impacts earnings and payroll management.