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Expenses that one must pay from one's personal, instead of business, income. Out-of-pocket expenses include mundane, recurring expenses such as paying the home electric bill or buying groceries. Often, however, the term refers to expenses incurred by an employee in the service of the employer. For instance, an employee may buy a more efficient computer program to accomplish his/her office work. These out-of-pocket expenses are usually reimbursed by the employer. Some out-of-pocket expenses, especially those related to education or health care, are tax deductible.