If employees want to enroll in a flexible spending account, there are some FSA enrollment rules they need to follow.

Employees have 4 opportunities to enroll in their company’s flexible spending account (FSA) plan:
- Within 30-60 days of hire date (this varies by company)
- A qualifying life event (QLE)
- During the company’s Initial Enrollment period (when the plan is set up)
- During FSA open enrollment
Start dates for a new individual FSA plan differs for each of these opportunities.
Generally, employees cannot use FSA funds prior to the FSA’s start date.