Employee benefits and benefits in kind, also called fringe benefits, perquisites, or perks, include various types of non-wage compensation provided to employees in addition to their normal wages or salaries. Instances where an employee exchanges (cash) wages for some other form of benefit is generally referred to as a "salary packaging" or "salary exchange" arrangement. In most countries, most kinds of employee benefits are taxable to at least some degree. Examples of these benefits include: housing furnished or not, with or without free utilities; group insurance ; disability income protection; retirement benefits; daycare; tuition reimbursement; sick leave; vacation ; social security; profit sharing; employer student loan contributions; conveyancing; long service leave; domestic help (servants); and other specialized benefits.