An HSA, or Health Savings Account, is a tax-advantaged savings account that lets you set aside money to be used specifically for medical expenses. The HSA is similar to an IRA for retirement, but the money remains tax-free when you withdraw it as long as you use it only for qualified medical expenses. Your employer might fund an HSA for you, but if you have a High Deductible Health Plan, you may fund your own for you and your family. Consult you tax adviser and Internal Revenue Service Publication 969 at IRS.gov for more information.