Employee benefits (also called fringe benefits or perks) include various types of non-wage compensation provided to employees in addition to their normal wages or salaries. Most kinds of employee benefits are taxable to at least some degree. Examples of these benefits include: housing (employer-provided or employer-paid), group insurance (health, dental, life etc.), disability income protection, retirement benefits, daycare, tuition reimbursement, sick leave, vacation (paid and non-paid), social security, profit sharing, funding of education, and other specialized benefits. The purpose of employee benefits is to increase the economic security of staff members, and in doing so, improve worker retention across the organization.