STR Material Participation: More Than 100 Hours

Understand the comparative 100-hour material participation test and organize actual participation records for your tax preparer.

Updated September 27, 2026 · Stratum Cost Segregation

The comparative test has two parts

One material-participation test requires more than 100 hours of participation and participation at least as great as that of any other individual, including nonowners. Exactly 100 hours does not satisfy the first requirement. A tie can satisfy the comparative requirement; saying the owner must always exceed everyone else is too restrictive. Other tests and limitations may apply.

Determine the activity rules first

Rental activities generally receive passive treatment, subject to exceptions. The short average-period-of-customer-use exception is one issue the preparer must evaluate before applying a material-participation analysis. A platform label, local STR permit, or a few short bookings does not establish the tax result for the year.

Record actual work without manufacturing hours

Keep a dated description of tasks, the property or activity involved, time spent, and supporting records. Separate investor monitoring and personal tasks for the preparer’s review rather than assuming all time counts. Do not backfill a log to hit a target. Accurate gaps and uncertainty are more useful than an apparently precise but unsupported total.

Understand the manager’s role

Request information about the work performed by managers, cleaners, and other individuals. An annual management fee does not reveal each person’s participation. Describe what information is available and what remains unknown, and ask the preparer whether another test or additional evidence is relevant.

Evaluate the deduction separately

Passing a participation test does not establish the amount of depreciable basis, bonus eligibility, or freedom from other loss limits. Give the preparer the ownership and financing facts along with the study. The economic question is whether a supported deduction produces a usable benefit after all applicable rules, fees, and future consequences are considered.

Primary references

Educational information. The return preparer should verify current guidance and apply it to the taxpayer’s facts.

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