Which type of income is defined as taxable income other than that received for services performed?

Unearned income refers to income that is not derived from the active involvement in a job or services performed. Instead, it is generated from other sources, such as investments, dividends, interest, or rental income. This concept is crucial for distinguishing between various types of income for tax purposes.

In contrast, earned income typically arises directly from working—such as wages, salaries, tips, and other forms of compensation for labor. Gross income includes all income received in the form of money, goods, or services that is not expressly exempt from tax, which encompasses both earned and unearned income. The term taxable amount is a more general term that does not specifically define the nature of the income.

Understanding these definitions helps clarify that unearned income is most accurately described as taxable income received from non-service-related activities, making it the correct answer in this context.