Definition of Service Incentive Leave
Service incentive leave is a right which accrues to every employee who has served within 12 months, whether continuous or broken reckoned from the date the employee started working, including authorized absences and paid regular holidays unless the working days in the establishment as a matter of practice or policy, or that provided in the employment contracts, is less than 12 months, in which case said period shall be considered as one year. It is also commutable to its money equivalent if not used or exhausted at the end of the year. In other words, an employee who has served for one year is entitled to it. He may use it as leave days or he may collect its monetary value.
**Definition taken from Auto Bus vs Bautista.