The passive activity loss rules of § 469 turn on material participation. Losses from an activity in which the taxpayer does not materially participate are passive, deductible only against passive income, with the excess suspended and carried forward. Material participation converts the activity to non-passive, deductible against all income (subject to basis and at-risk limits).
The seven tests
Treas. Reg. § 1.469-5T provides seven tests; satisfying any one establishes material participation for the year:
- 500 hours. Participation exceeds 500 hours during the year.
- Substantially all. The taxpayer's participation is substantially all of all individuals' participation.
- 100 hours / not less than anyone. More than 100 hours and no other individual participates more.
- Significant participation activities. The activity is an SPA (>100 hours) and aggregate SPA participation exceeds 500 hours.
- Prior-year (5 of 10). Material participation in any five of the preceding ten years.
- Personal service activity (3 years). A personal service activity with material participation in any three preceding years.
- Facts and circumstances. Regular, continuous, and substantial participation.
Proving participation
Participation may be established by "any reasonable means," but the courts routinely reject the after-the-fact "ballpark guesstimate." Contemporaneous logs, calendars, and time records are the gold standard; in Gregg v. United States and a line of Tax Court decisions, record quality decided the outcome.
Common traps
- Investor activities don't count. Reviewing financials or monitoring in a non-managerial capacity is excluded.
- Travel time is contested. Courts split on whether commuting to the activity counts.
- Spousal hours count. A spouse's participation counts toward the taxpayer's, a frequently overlooked planning point.
Don't trust. Verify.
Don't take our word for it. Click any citation in this article to read it straight from the source.
- IRC § 469Passive activity losses and credits limited
- Treas. Reg. Treas. Reg. § 1.469-5TMaterial participation (temporary)
- Gregg v. United States

