The Letter of Absence From Work Due to Illness is a crucial document in Nigerian workplace communications, required whenever an employee needs to take time off work due to health-related issues. This document is essential for compliance with Nigerian labour laws, particularly the Labour Act and Employee's Compensation Act, which require formal notification of absence and proper documentation of sick leave. The letter serves multiple purposes: it formally notifies the employer of the absence, provides necessary medical context, establishes a record for HR purposes, and helps protect both employee and employer rights. It should be submitted as soon as possible after the need for absence becomes known, or in accordance with company policy timeframes. The document typically requires supporting medical documentation and should align with the organization's sick leave policies while meeting Nigerian legal requirements for workplace communication and record-keeping.

1. Employee Information: Full name, employee ID, department, and position of the employee

2. Date and Recipient Details: Current date and recipient's details (supervisor/HR manager name and title)

3. Subject Line: Clear indication that this is a sick leave notification

4. Illness Notification: Brief description of the illness or medical condition (maintaining appropriate privacy)

5. Absence Duration: Expected period of absence, including start date and anticipated return date

6. Medical Documentation Reference: Reference to attached medical certificate or doctor's note as required by Nigerian labour law

7. Contact Information: How to reach the employee during the absence period

8. Handover Information: Brief status update on current work responsibilities and any urgent matters

9. Closing: Professional closing, signature, and employee details