STR Property Manager and Co-Host Material Participation (2026)

This is the question that decides whether most short-term rental tax strategies work. The seven-day rule removes the property from rental activity treatment, but you still have to materially participate under Treasury Regulation Sec. 1.469-5T, and a manager competes directly with you on the test most owners rely on.

The answer is not automatic disqualification. It depends entirely on which of the seven tests you are using and how much the manager actually does.

The Seven Tests and Which Ones a Manager Affects

Treasury Regulation Sec. 1.469-5T(a) provides seven tests. You need to satisfy only one.

Test one: more than 500 hours in the activity. A manager does not affect this test at all. If you personally spend 500 hours, you materially participate regardless of what anyone else does.

Test two: your participation constitutes substantially all of the participation of all individuals in the activity. A manager destroys this test immediately, since their hours count.

Test three: more than 100 hours, and not less than any other individual's participation. This is the test most STR owners rely on, and a manager or co-host is a direct threat to it.

Test four: significant participation activities aggregating more than 500 hours across multiple activities where you participate more than 100 hours in each.

Test five: material participation in any five of the ten preceding taxable years.

Test six: personal service activity material participation in any three preceding years, which does not apply to rental property.

Test seven: facts and circumstances, requiring regular, continuous, and substantial participation on more than 100 hours. The regulation excludes reliance on this test where any person other than the owner receives compensation for management of the activity, which is a direct bar when you pay a manager.

Why the 100-Hour Test Is the Battleground

Most STR owners cannot reach 500 hours on one property. Cleaning, guest communication, maintenance coordination, listing management, and pricing across a single property rarely totals 500 hours in a year.

So they rely on test three: more than 100 hours, and more than any other individual.

A full-service property manager typically spends far more than 100 hours on a property annually. Between cleaning coordination, guest messaging, check-ins, maintenance, and listing management, a manager handling a busy property may spend 200 to 400 hours.

If the manager spends 260 hours and you spend 140, you fail test three. Your hours were real, but someone else did more.

Critically, the test compares you against each individual, not against all others combined. If three separate cleaners each spend 60 hours and you spend 140, you still pass, because no single individual exceeded you.

Whose Hours Count

Any individual's participation counts, including employees, contractors, cleaners, and the manager, and including individuals who have no ownership interest.

Under Treasury Regulation Sec. 1.469-5T(f)(2)(ii), work not customarily done by an owner does not count as participation if one of its principal purposes is avoiding the passive loss rules. This cuts against manufactured hours, not against the manager.

Your spouse's hours count toward your participation under IRC Sec. 469(h)(5), which is a genuine advantage. A couple who together spend 190 hours against a manager's 160 passes test three.

An entity's hours are attributed to the individuals performing them. A cleaning company that sends four different people to the property means four individuals, each with their own hour count, rather than one entity with the combined total. This is favorable and is one of the most useful practical facts in STR participation planning.

Co-Hosting Arrangements Specifically

A co-host on a platform typically handles guest communication, calendar management, and coordination while the owner handles ownership decisions.

Whether this is fatal depends on hours, not on the label. A co-host handling messaging for a property with 140 bookings a year may spend 180 hours. A co-host who only steps in when the owner travels may spend 25.

The practical approach for an owner who wants to keep the deduction is to retain the time-intensive functions: guest communication, pricing and calendar management, vendor coordination, and turnover quality control, and delegate only what is genuinely episodic.

Where a manager is necessary, an owner with multiple properties should consider whether aggregating them changes the analysis. Grouping under Treasury Regulation Sec. 1.469-4 combines activities, so the owner's total hours across five properties are compared against each individual's hours in the combined activity. An owner with 340 hours across five properties may exceed any single manager's hours on the combined activity even if they would lose property by property.

What Counts as Your Participation

Work done in your capacity as an owner counts if it is the type of work customarily done by owners and is not primarily for the purpose of avoiding the passive rules.

Guest communication, pricing decisions, listing creation and optimization, vendor selection and coordination, purchasing supplies and furnishings, property inspections, bookkeeping specific to the property, and physical work such as cleaning or repairs all count.

Investor-type activities are excluded under Treasury Regulation Sec. 1.469-5T(f)(2)(ii)(B): studying financial statements, analyzing returns, and monitoring finances in a non-managerial capacity do not count.

Travel time to the property is contested. The IRS position is generally unfavorable, and courts have not been sympathetic to large travel hour claims.

Documentation That Survives Examination

Keep a contemporaneous log with date, hours, and a specific description. Not property management, but responded to 11 guest inquiries, adjusted pricing for three weekends, scheduled HVAC service.

Obtain and retain the manager's or co-host's hours. This is the number the examiner will ask for, and if you do not have it, they will estimate it unfavorably.

Where you use a cleaning company, document that different individuals perform the work, since that splits their hours across people rather than concentrating them.

Retain corroboration: platform message timestamps, pricing change history, vendor invoices and scheduling emails, and receipts.

Worked Example: Two Owners, Same Property

Owner A buys a $740,000 short-term rental, hires a full-service manager at 20% of revenue, and personally spends 118 hours on ownership decisions and periodic visits. The manager's records show 291 hours.

Owner A fails test three, cannot use test two because the manager participated substantially, and is barred from the facts and circumstances test because a compensated manager handles the activity. Owner A does not materially participate. A $212,000 cost segregation deduction suspends as a passive loss.

Owner B buys the same property, handles guest communication, pricing, and vendor coordination personally, and hires an independent cleaning company that sends different cleaners. Owner B logs 164 hours. The cleaning company's individuals log 71, 58, 44, and 39 hours respectively.

Owner B exceeds 100 hours and exceeds every individual's participation. Test three is satisfied. Owner B materially participates, the average stay is 4.6 nights so the activity is not a rental, and the $212,000 deduction is non-passive against W-2 income.

The property, the study, and the deduction are identical. The management arrangement is the only difference, and it is worth roughly $78,000.

Frequently Asked Questions

Does hiring a property manager disqualify my STR deduction?

Not automatically, but it makes the 100-hour test much harder, since you must exceed every individual's participation and a full-service manager typically spends 200 to 400 hours. It also bars the facts and circumstances test, which excludes reliance where a compensated manager handles the activity.

Do the cleaner's hours count against me?

Yes, but per individual rather than in total. If three separate cleaners each spend 60 hours and you spend 140, you still pass the 100-hour test because no single person exceeded you. Using a company that sends different people is therefore more favorable than one dedicated cleaner.

Do my spouse's hours count toward mine?

Yes. Under IRC Sec. 469(h)(5) a spouse's participation counts toward yours for material participation, even if the spouse has no ownership interest and even on a separate return. This is one of the most useful facts in STR planning.

Can I use a co-host and still qualify?

It depends on hours, not on the label. Retain the time-intensive functions such as guest communication, pricing, and vendor coordination, and delegate only what is episodic. A co-host who spends 25 hours is very different from one who spends 180.

Does grouping multiple properties help?

It can. A grouping election under Treas. Reg. Sec. 1.469-4 combines activities, so your total hours across all properties are compared against each individual's hours in the combined activity. An owner with 340 hours across five properties may pass where they would fail property by property.

Does a Property Manager or Co-Host Kill My STR Material Participation?