Flexible spending accounts (FSAs) and health savings accounts (HSAs) work like personal savings accounts. However, the funds in the account can only go toward qualifying medical expenses. An employee who has an FSA or HSA contributes pre-tax dollars to their account, lowering their taxable income. Employees can use their account funds to cover out-of-pocket medical expenses. HSA - You can use your HSA to pay for eligible health care, dental, and vision expenses for yourself, your spouse, or eligible dependents (children, siblings, parents, and others who are considered an exemption under Section 152 of the tax code). Health Care FSA - You can use your health care FSA to pay yourself back for eligible health care, vision, and dental expenses for yourself, your spouse, or eligible dependents (children, siblings, parents, and other dependents as defined in your plan documents).