When you record a loss on a passive activity, only passive activity profits can have their deductions offset instead of the income as a whole. It would be prudent to ensure that all your passive activities were classified that way, in order to make the most of the tax deduction. These deductions are allocated for the next tax year and are applied in a reasonable manner that takes into account the next year’s earnings or losses.
The United States Internal Revenue Service categorizes income as active income, passive income, or portfolio income.[1] It defines passive income as only coming from two sources, or "passive activities": rental activity or "trade or business activities in which you do not materially participate."[2][3] Other financial and government institutions also recognize it as an income obtained as a result of capital growth or in relation to negative gearing. Passive income is usually taxable.

What means passive income?