Can Spouse and Co-Host Hours Count for STR Material Participation?

A short-term rental can fall outside the passive-activity definition of a rental when the average customer stay meets an exception. That alone does not make its loss nonpassive: the owner must still establish material participation in the activity.

Separate the customer-stay test from the participation test

Under the passive-activity rules, an activity with average customer use of seven days or less is generally not treated as a rental activity. Certain activities with average use of 30 days or less and significant personal services may also qualify for an exception. Compute the average from actual rental periods; a listing's minimum-night setting is not the calculation. Only after identifying the activity and its classification should the owner analyze material participation.

There are seven material-participation tests. Two commonly discussed STR paths are participation exceeding 500 hours, or participation exceeding 100 hours and at least as much as any other individual. Those are annual tests of the taxpayer's participation in the activity, not thresholds per booking. Hours alone do not decide basis, at-risk, business-use, or other loss limitations.

Spouse hours and co-host hours work differently

The IRS counts a spouse's participation with the taxpayer's participation, even if the spouse owns no interest and the couple does not file jointly. Record each spouse's date, task, property, and time without double-counting work they did together. A co-host's work is not the owner's participation. For the 100-hour test, the comparison is to any other individual, including a property manager or co-host, so their hours can prevent an owner from satisfying that particular test.

Ask the manager for a task or time report rather than assuming that a percentage-of-revenue management fee proves a number of hours. Cleaners and maintenance vendors are also individuals whose work can be relevant to the comparison. Whether activities can be grouped is a separate factual and regulatory question; do not combine multiple properties merely because the same owner holds them or the same app lists them.

What work should the log distinguish?

Operating work can include guest communication, scheduling cleaners, direct maintenance, restocking, and active management. Investor work such as reviewing financial statements or monitoring performance in a nonmanagerial capacity generally does not count unless the owner is directly involved in day-to-day management or operations. Commuting, duplicated estimates, and reconstructed round numbers invite questions. Record start and end times, a concrete task, the property, and corroboration such as messages, invoices, calendars, or access logs.

Illustrative annual comparison

Assume one spouse performs 78 hours of guest and maintenance work and the other performs 64, for 142 combined hours. The co-host performs 150 hours and no other test applies. The owners may fail the 100-hour/more-than-anyone-else test because one individual worked more than their combined participation. If the co-host instead worked 95 hours and no other individual exceeded 142, the comparison could be satisfied, assuming all owner hours qualify and the activity is defined correctly. This example does not determine the return without the remaining limitations.

Build evidence during the year

Export booking history, task-management records, platform messages, cleaner schedules, maintenance invoices, and co-host statements quarterly. Reconcile the time log to these records. Keep a separate schedule of guest stays for the average-use test. A year-end spreadsheet reconstructed from memory is much weaker than contemporaneous records. IRS Publication 925 explains the stay exceptions, spouse participation, investor activities, and proof of participation.

Download a blank STR participation log (CSV). Enter each person and task separately, with a source record such as a guest message, calendar event, invoice, or vendor report. The blank template is a recordkeeping aid; the tax treatment of an hour still depends on the actual work and activity facts.

For the overall planning sequence, see short-term rental tax strategy and how to track participation hours. The latter covers the basic log; this guide focuses on the spouse and outside-manager comparison.

Review the log before relying on a loss

At year-end, compare the owners' combined hours with each outside individual's hours under the intended material-participation test. If a cleaner works for several properties, ask for property-level invoices or schedules rather than allocating all their time to one address. Document who decided prices, accepted bookings, assigned work, and resolved guest issues; that helps distinguish direct management from investor oversight. Review the property's basis and debt schedule in the same meeting, because passing a participation test does not make a loss deductible when another limitation applies.