In the United States, a flexible spending account (FSA), also known as a flexible spending arrangement, is one of a number of tax-advantaged financial accounts, resulting in payroll tax savings. One significant disadvantage to using an FSA is that funds not used by the end of the plan year are forfeited to the employer, known as the "use it or lose it" rule. Under the terms of the Affordable Care Act however a plan may permit an employee to carry over up to $550 into the following year without losing the funds but this does not apply to all plans and some plans may have lower limits. The most common type of flexible spending account, the medical expense FSA (also medical FSA or health FSA), is similar to a health savings account (HSA) or a health reimbursement account (HRA). However, while HSAs and HRAs are almost exclusively used as components of a consumer-driven health care plan, medical FSAs are commonly offered with more traditional health plans as well. In addition, funds in an HSA are not lost when the plan year is over, unlike funds in an FSA. Paper forms or an FSA debit card may be used to access the account funds. Types Most cafeteria plans offer two major different flexible spending accounts focused on medical and dependent care expenses. A few cafeteria plans offer other types of FSAs, especially if the employer also offers an HSA. Participation in one type of FSA does not affect participation in another type of FSA, but funds cannot be transferred from one FSA to another. Health FSA The most common type of FSA is used to pay for medical and dental expenses not paid for by insurance, usually deductibles, copayments, and coinsurance for the employee's health plan. As of January 1, 2011, over-the-counter medications are allowed only when purchased with a doctor's prescription, except for insulin. Over-the-counter medical devices, such as bandages, crutches, and eyeglass repair kits, are allowable. Generally, allowable items are the same as those allowable for the medical tax deduction, as outlined in IRS publication 502. Prior to the enactment of the Patient Protection and Affordable Care Act, the Internal Revenue Service permitted employers to enact any maximum annual election for their employees. Patient Protection and Affordable Care Act amended Section 125 such that FSAs may not allow employees to choose an annual election in excess of a limit