Passive Activity Rules: When Losses Can (and Can't) Offset Your Income
The passive activity rules under IRC 469 are one of the most important and misunderstood areas of the tax code for business owners and investors. The core rule: losses from a passive activity can only deduct against income from passive activities. They can’t offset W-2 income, active business income, or portfolio income (interest, dividends, capital gains). This means an investor who buys a rental property that generates a $50,000 paper loss from depreciation can’t use that loss to reduce their $200,000 salary, unless they qualify for one of the exceptions. Understanding what counts as “material participation” and what qualifies as “passive” determines whether business and investment losses have immediate tax value or sit suspended until a future event.
Passive activity rules:
What’s a passive activity?
- Any trade or business in which the taxpayer doesn’t materially participate
- ALL rental activities (with limited exceptions)
- Limited partnership interests (generally passive per statute)
Material participation tests (meet ANY one of these 7):
- 500+ hours of participation during the year
- The taxpayer’s participation constitutes substantially all of the participation
- 100+ hours AND no other individual participated more
- Significant participation (100+ hours) in multiple activities that total 500+ hours
- The taxpayer materially participated in any 5 of the last 10 years
- The activity is a personal service activity AND the taxpayer materially participated in any 3 prior years
- Based on all facts and circumstances, the taxpayer participated on a regular, continuous, and substantial basis (courts interpret this strictly)
Rental activities are per se passive with two exceptions:
- $25,000 rental loss allowance: taxpayers who actively participate (not materially participate) can deduct up to $25,000 in rental losses against non-passive income. The full amount applies at modified AGI of $100,000 or less, and it phases out as modified AGI rises from $100,000 to $150,000.
- Real estate professional status: if the taxpayer (a) spends 750+ hours in real property trades or businesses AND (b) more than half their total working time is in real property trades or businesses, then their rental activities aren’t automatically passive. They must still materially participate in each rental activity (or elect to group all rentals as one activity).
What happens to suspended losses?
- Carried forward indefinitely
- Deducted against future passive income from the SAME activity
- Released in FULL when the activity is disposed of in a fully taxable transaction (sold, not gifted)
- At death: suspended losses in excess of the basis step-up are lost
Grouping elections:
- Taxpayers can elect to group multiple activities as a single activity for material participation purposes
- Once made, the grouping election is generally irrevocable
- Useful for investors with multiple rental properties (group all as one, then demonstrate 500+ hours across all properties)
How do the passive rules play out in practice?
What does material participation mean for tax purposes?
The IRS defines material participation through seven tests under Treasury Regulation 1.469-5T, and meeting any single test is sufficient. The most commonly used test is the 500-hour test: you participate in the activity for more than 500 hours during the tax year. Other tests include being the only individual who participates, participating more than 100 hours and more than any other individual, or participating in multiple activities that collectively exceed 500 hours. If you don’t materially participate, the activity’s income and losses are treated as passive, and passive losses can only offset passive income (not wages or portfolio income). Rental activities are generally treated as passive regardless of participation, with a limited $25,000 exception for active participation in rental real estate (phased out as modified AGI rises from $100,000 to $150,000).
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Yarik Yarosh, CPA. "Passive Activity Rules: When Losses Can (and Can't) Offset Your Income." Blue Cloud CPA, September 5, 2026, updated September 23, 2026. https://bluecloudcpa.com/guides/small-business-passive-activity-rules-irc-469
This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.