An employee leave-of-absence letter informs an employer that an employee intends to take a designated period of time off work. The reasons vary, including personal, medical and professional.

An employee leave-of-absence letter is addressed to the employer, informing the employer of the employee's need for taking time off work. A typical letter includes the most pertinent information, such as the date of the letter, the employee's name and contact information, the length of time and dates of the requested time off and a brief reason for the leave of absence. The letter also represents formal documentation that approval was given, as the employer representative signs his or her name on the bottom to approve the leave.