Health savings accounts (HSAs) and flexible spending accounts (FSAs), also known as healthcare flexible spending arrangements (HCFSAs), let you save for eligible medical expenses with pre-tax dollars. You generally can’t have both types of accounts, so read on to learn the details of each to decide which, if either, is best for you. HSAs and FSAs explained Both HSAs and healthcare FSAs cover qualified medical expenses that generally include the costs to treat, manage, or prevent a physical or mental co ...