Earned income is cash or any in-kind payment earned in the form of wages, salary, commissions, or profit, from activities by an employee or self-employed individual. Earned income includes:

(a) Any one-time payment to an individual for activities which were sustained over a period of time (for example, the sale of farm crops, livestock, or professional artists producing art work); and

(b) With regard to self-employment, total profit from a business enterprise (i.e., gross receipts less expenses incurred in producing the goods or services). Business expenses do not include depreciation, personal business and entertainment expenses, personal transportation, capital equipment purchases, or principal payments on loans for capital assets or durable goods.