A Flexible Spending Account (FSA) is funded with money you contribute on a pre-tax basis. You can use that money to pay for qualified out-of-pocket healthcare expenses for you and eligible dependents or dependent care expenses.
When you enroll in a FSA, you estimate the amount of out-of-pocket expenses you may incur during the calendar year. The amount you estimate will be deducted from your paychecks in equal amounts throughout the year.