The 100-Hour More-Than-Anyone-Else Test (Temp. Reg. 1.469-5T(a)(3))
Test 3 under Temp. Reg. 1.469-5T(a)(3) requires more than 100 hours of participation AND no other individual (including paid contractors) participates more. Self-managed short-term rental operators using a cleaner or maintenance contractor for a few hours typically pass Test 3. Properties with full-service property managers often fail because manager hours exceed owner hours.
Test 3 mechanics
Two conjunctive requirements. First, more than 100 hours of participation in the activity. Second, the taxpayer's hours are not less than the participation of any other individual (including non-owners and paid contractors).
Both requirements must hold. A taxpayer with 120 hours where a paid cleaner logs 130 hours fails Test 3 because the cleaner logged more. The 'more than anyone else' standard is strict and the most-litigated point in audit cases.
Property manager interaction
Full-service property management typically kills Test 3 because the manager's combined hours (cleaning, tenant communication, repairs, vendor coordination) easily exceed an owner's hands-on hours. The owner's strategic and oversight time often counts as investor activity excluded under Temp. Reg. 1.469-5T(f)(2).
Self-managed STR operators using a cleaner for 60-80 hours per year and personally handling guest communication, maintenance, and supply runs typically pass Test 3 because their personal hours exceed contractor hours.
Worked example: surgeon with self-managed STR
A W-2 surgeon owns a $750K Smoky Mountain cabin rented short-term. The surgeon personally handles cleaning between guests (30 weekends times 4 hours equals 120 hours), guest communication and supply runs (52 weeks times 1 hour equals 52 hours), occasional repairs (30 hours), bookkeeping (15 hours). Total: 217 hours.
The cleaner contractor logs 60 hours on heavy-clean and turnover days. The surgeon's 217 hours exceed both the 100-hour threshold and the cleaner's 60 hours. Test 3 passes. Combined with the 7-day average stay and ownership during participation, the STR loophole qualifies and losses offset the surgeon's W-2.
Audit risk under Test 3
Test 3 is the most-audited material participation test because the 'more than anyone else' requirement requires documenting both the taxpayer's hours and every other contributor's hours. Property managers typically have detailed records that the IRS can subpoena.
Track contractor hours alongside owner hours. Confirm that owner hours genuinely exceed the highest non-owner. A small margin (owner 105 hours, cleaner 90 hours) is defensible if logs are clean. A close call that requires generous interpretation will likely lose in audit.
Frequently asked questions
- How does WeCostSeg coordinate with my CPA?
- Every engagement follows the three-touch CPA Coordination Protocol. We send a preliminary analysis to your CPA on intake, share the draft report five business days before final delivery, and coordinate Form 3115 filing timing when a Section 481(a) adjustment applies. Your CPA never pays a fee.
- Does this analysis assume 100% bonus depreciation under OBBBA?
- Yes for property acquired with a binding contract on or after January 20, 2025 under Public Law 119-21. Property under a binding contract on or before January 19, 2025 stays on the legacy phase-down: 40% bonus in 2025, 20% in 2026, 0% in 2027 and after.
- Is the five-year audit defense included?
- Yes. Every WeCostSeg engagement includes five years of written audit defense at no extra cost. The defense aligns to the 13 Principal Elements of a Quality Cost Segregation Study under IRS Publication 5653 Chapter 4.
- Can I get a free preliminary analysis?
- Yes. Submit your property details via the free proposal form or WhatsApp. Our engineer returns a written estimate of your first-year deduction within four business hours during US Eastern hours. No payment, no contract.
Zawwad Ul Sami, Founder
Zawwad Ul Sami is the founder of WeCostSeg, a founder-led cost segregation firm serving real estate investors across the US. He focuses on strategy, pricing, and the firm's overall direction.