also: ざっしゅうにゅう
miscellaneous income
Refers to income from irregular or non-primary sources, such as side jobs, interest, or incidental earnings. Often used in accounting or tax contexts.
When filing your tax return, please be sure to declare miscellaneous income as well.
彼の雑収入は、アフィリエイトと講演料が主だ。
His miscellaneous income mainly comes from affiliate marketing and lecture fees.