Income of workers from their work includes not only their disposable salaries, but also non-salary monetary income, physical income, and intangible income.

劳动的收入是一个综合报酬，劳动者从其职业中获得的收入除了供其直接支配的工资外，还包括非工资货币收入、实物收入及无形收入。

youdao

Single female, professional work in financial job, stable income, pay rent on time, non smoking, no pets, like tidy, are interested in your apartment, please contact me, thank you.

一个女仔住，专业工作，准时交租，不吸烟，不养宠物，喜欢整洁，有兴趣约睇楼，请与我联络，谢谢。

youdao

By 2016, all non-work income for those 65 and over would be completely untaxed.

FORBES: State Tax Breaks For Seniors On The Chopping Block

At that point they needed a source of non-work income to support them.

FORBES: Why Does The Federal Government Subsidize Retirement?

Raise tax rates and the working rich will work less, defer income, and take more non-cash compensation while the idle rich will defer capital gains, shift their investments to more tax efficient securities like municipal bonds, and (yes) evade taxes.

FORBES: Hey Romney, Here's A Comeback To Obama's $5 Trillion Tax Cut Canard