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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.
Recall FSA funds are âuse or loseâ (note - some employers offer $500 roll-over), whereas the entire balance of your HSA rolls over year to year. Further, unlike an FSA, you can invest your HSA funds through a brokerage account, much the way you can a 401(k), IRA or non tax-deferred savings plan.