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A flexible spending account (FSA), also known as a flexible spending arrangement, is one of a number of tax-advantaged financial accounts that can be set up through a cafeteria plan of an employer in the United States.
BREAKING DOWN 'Flexible Spending Account - FSA'. One of the key benefits of a flexible spending account is that the funds contributed to the account are deducted from the employee's earnings before they are made subject to payroll taxes. As such, regular contributions to an FSA can significantly lower an employee's annual tax liabilities.