Sorry, I overlooked that you were asking about income limits for participation.
No, there is no specific limit, but there is a but...
There are special rules for fringe benefit programs if the employee also owns more than 2% of the company. And there are special rules if the employee is "highly compensated" relative to the average employee in the company. These rules apply to the company offering the FSA, and do not apply directly to the employee who wants to enroll. You would have to ask your employer if there are any limitations on your participation. If you are an owner/employee of a S-corp, you should talk to an attorney or benefits specialist consultant before offering any employee benefits, so you properly follow the rules.
