PeopleManagement

Timing of Leave
Both the employer and worker should agree to the timing of leave.  If they cannot agree, the employer makes the final decision.

Leave must be granted not later than 6 months after the end of the annual leave cycle (12 month periods from date of employment).
Based on Legislation in Section 20, of the Basic Conditions of Employment Act

https://www.labour.gov.za/legislation/acts/basic-guides/basic-guide-to-annual-leave