At what point do I have to fire temporary employees or make them regular full-time employees?

There is no specific time limit on how long a worker may be classified as “temporary.” However, if temporary employees have been performing the same job duties as regular full-time employees for an extended period but are ineligible for the benefits those other employees receive, their employer could face liability.

Two court decisions have indicated that, without careful planning on your part, temporary and leased employees can become eligible for employee benefits.

Although neither case offers a clear time limit for employing temporary workers, they still offer some guidance for California businesses.