A letter report issued by the Government Accountability Office with an abstract that begins "Health savings accounts (HSA) and the high-deductible health insurance plans that are eligible to be coupled with them are a new type of consumer-directed health plan attracting interest among employers and consumers. Employers and plan enrollees may contribute to tax-advantaged HSAs, and enrollees can use the accounts to pay for health care expenses. Because HSAs and HSA-eligible plans are new, there is interest in the experiences of plan enrollees, as well as in comparing the plan features and enrollee characteristics with those of traditional plans, such as preferred provider organization (PPO) plans. GAO reviewed (1) the financial features of HSA-eligible plans in comparison with those of traditional plans, (2) the characteristics of HSA-eligible plan enrollees in comparison with those of traditional plan enrollees, (3) HSA funding and use, and (4) enrollees' experiences with HSA-eligible plans. GAO analyzed data regarding HSA-eligible and traditional plans and enrollees from national employer health benefits surveys, three selected employers, and a national broker of health insurance. GAO compared Internal Revenue Service (IRS) data for tax filers reporting HSA contributions with corresponding data for all tax filers under 65 years old. GAO …