Tax recordkeeping

# More Than 100 Hours: Why Other People's Time Can Matter

One material-participation test compares your hours with every other individual's time. Learn what to record before your CPA makes that comparison.

August 22, 2026·6 min read·By HostHours

![Illustrated rental house with separate work cards beside cleaning supplies, repair tools, keys, and a blank notebook](/_astro/more-than-100-hours-other-peoples-time-hero.DDZU84c8_21NvE7.webp)

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One of the seven material-participation tests starts with a familiar number: more than 100 hours. The rest of the sentence matters just as much. Your participation in the activity must also be no less than the participation of any other individual during the tax year.

That comparison can include a property manager, co-owner, contractor, employee, or another person who did work in the activity. Ownership is not required. A tidy owner-hour total therefore answers only one part of the question.

Use the free [material participation and REPS hours checker](/free-tools/material-participation-calculator/) to screen the numeric comparisons with your recorded hours, then bring the underlying records—not only the result—to your tax professional.

## Read the complete test before counting

[Temporary Treasury Regulation section 1.469-5T(a)(3)](https://www.ecfr.gov/current/title-26/chapter-I/subchapter-A/part-1/subject-group-ECFR53de09ff5f206e9/section-1.469-5T) describes this test in two parts:

*   The individual participates in the activity for more than 100 hours during the tax year.
*   That participation is not less than the participation of any other individual for the year, including a person who owns no interest in the activity.

The first threshold is strict. Exactly 100 hours is not more than 100 hours. The second part is a comparison with each other individual, not a comparison between your hours and one combined total for everybody else.

This is only one route within the material-participation rules. Crossing 100 hours does not create a general safe harbor, and falling short of this test does not rule out every other test. [IRS Publication 925](https://www.irs.gov/publications/p925) summarizes all seven tests and should be read with the regulation and your facts.

For a rental activity, satisfying a material-participation test does not by itself overcome the general rule that rental activities are passive. The rental-activity exceptions still have to be considered. Limited partners also generally have a narrower path: subject to the regulation’s exceptions, only tests 1, 5, and 6 are available to establish material participation.

## An owner-only log leaves the comparison open

Suppose your records show 132 hours. That figure clears the first numerical threshold, but it says nothing about whether one manager participated for 160 hours. It also may not show whether your 132 hours belong to the same tax activity as the manager’s work.

Do not solve this gap by inventing exact time for other people. Preserve the evidence that already exists:

*   management agreements and scopes of work;
*   invoices that identify dates and services;
*   maintenance tickets and turnover reports;
*   messages assigning, updating, or closing a task;
*   vendor arrival records when they are available; and
*   payroll or scheduling records for employees.

These materials may support a reasonable picture of who did what. They may not capture every minute. Mark that limitation for the professional reviewing the return.

## Record participation, not merely presence

The regulation focuses on participation in the activity. A vendor invoice amount is not a duration. A calendar booking does not show the time spent cleaning it. A day when a manager was available does not necessarily equal a day of work on your activity.

For your own work, keep the date, property, specific task, outcome, and actual or supportable approximate time. For another person’s work, keep the person’s name or role, the service performed, the period it covered, and the document that supports it. If duration is unknown, write `duration unknown` instead of supplying a precise estimate with no basis.

An illustrative entry might read: `May 14, Pine Street, owner inspected repaired stair rail and uploaded completion photos, 0.6 hour, supported by contractor thread and photo timestamps.` A related contractor invoice can remain separate. The purpose is to preserve facts, not force both records into one artificial number.

## The activity boundary comes before the comparison

Hours can be compared only after identifying the relevant activity. Two properties may be separate activities. A taxpayer may have a valid election affecting rental real estate activities. Work by a management business might not line up with the owner’s assumed portfolio boundary.

[Treasury Regulation section 1.469-9](https://www.ecfr.gov/current/title-26/chapter-I/subchapter-A/part-1/subject-group-ECFR53de09ff5f206e9/section-1.469-9) generally treats each interest in rental real estate as a separate activity for a qualifying taxpayer unless an election to treat all interests as one rental real estate activity applies. Other activity rules can also matter. An hours report should not silently choose that legal boundary.

Keep entries connected to a property and, where useful, an entity or operating role. Give your CPA copies of relevant election statements and ownership changes. Then the reviewer can assemble the records using the activity definition that applies.

## Spouse work needs its own label

Section 1.469-5T(f)(3) generally treats a spouse’s participation in an activity as participation by the taxpayer for the material-participation rules, even if the spouse owns no interest in the activity and the spouses do not file a joint return. This is different from the annual service requirements for real estate professional status.

Record the actual performer anyway. Do not enter two spouses’ work under one generic owner profile or duplicate the same task in both totals. Separate records let a CPA apply the spouse rule without losing who did the work or accidentally counting one period twice.

## A practical year-end comparison packet

Before asking whether this test applies, prepare a short packet with:

1.  Your entries grouped by proposed activity and reconciled to the annual total.
2.  A list of every other person who regularly worked in that activity.
3.  Agreements, invoices, schedules, and task records showing the nature and timing of their work.
4.  A note identifying missing durations, overlapping roles, and work performed for several properties at once.
5.  Any relevant grouping or rental-real-estate election documents.

HostHours’ built-in `>100h + compare` reference adds recorded owner and spouse hours and compares that result with the highest recorded individual contributor. It cannot know every service another person performed or decide how the tax activity is defined. Treat the comparison as a factual review aid, not a finding that the test has been met.

The useful question is not simply, `Did I pass 100?` It is, `Can the record show my participation and support a fair comparison with each other individual's participation in the same activity?`

## Sources

*   [26 CFR section 1.469-5T, Material participation](https://www.ecfr.gov/current/title-26/chapter-I/subchapter-A/part-1/subject-group-ECFR53de09ff5f206e9/section-1.469-5T)
*   [26 CFR section 1.469-9, Rules for certain rental real estate activities](https://www.ecfr.gov/current/title-26/chapter-I/subchapter-A/part-1/subject-group-ECFR53de09ff5f206e9/section-1.469-9)
*   [IRS Publication 925 (2025), Passive Activity and At-Risk Rules](https://www.irs.gov/publications/p925)

> This article provides general educational information. It does not determine tax status, material participation, deduction eligibility, or the treatment of a specific activity. Review your facts with a qualified tax professional.

Clear answers

## Frequently asked questions

Is exactly 100 hours enough under this material-participation test?+

No. Temporary Treasury Regulation section 1.469-5T(a)(3) requires more than 100 hours. Exactly 100 hours does not satisfy that test, although another material-participation test may still be relevant.

Must my hours exceed everyone else's hours combined?+

The regulation compares the taxpayer's participation with the participation of any other individual. It does not state that the taxpayer must exceed all other individuals' hours added together.

Does a property manager's time matter if the manager owns no part of the rental?+

It can. The regulation expressly includes individuals who own no interest in the activity, so a manager's or contractor's participation may be relevant to the comparison.

Can HostHours prove that I meet the more-than-100-hours test?+

No. HostHours can organize factual work records, but it cannot establish the scope of the tax activity, reconstruct another person's complete participation, or decide whether a legal test is met.

## Related guides

*   [![Illustrated rental-property desk with a blank calendar, activity notebook, clock, work photos, and tools](/_astro/what-irs-publication-925-says-about-records-of-participation-hero.XapEbQ63_1rvpwG.webp)
    What IRS Publication 925 Says About Records of Participation
    ](/blog/what-irs-publication-925-says-about-records-of-participation/)
*   [![Illustrated rental-property desk with two separate notebooks, a shared property folder, two sets of keys, and work gloves](/_astro/spouse-hours-reps-material-participation-hero.iktw4s8L_fhean.webp)
    Spouse Hours: REPS and Material Participation Ask Different Questions
    ](/blog/spouse-hours-reps-material-participation/)
*   [![Illustrated owner and adviser reviewing rental-work facts across a clear table with a clock, keys, repair photo, and folder](/_astro/rental-activity-log-can-and-cannot-decide-hero.Cnv_thRV_Z284eoQ.webp)
    What a Rental Activity Log Can Show, and What It Cannot Decide
    ](/blog/rental-activity-log-can-and-cannot-decide/)

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