The 7-Day Rule for Short-Term Rentals Under Reg. 1.469-1T(e)(3)(ii)
Treas. Reg. 1.469-1T(e)(3)(ii)(A) excludes from the rental activity definition any activity where the average period of customer use is seven days or less. The exclusion treats the activity as a non-rental trade or business under IRC Section 469, opening the door for nonpassive loss treatment if the taxpayer materially participates. Average is computed across all stays during the year, typically per property.
How average is computed
Average period of customer use is the total days rented divided by the number of customers (stays). A property with 200 rented nights across 50 stays has an average of 4 nights. A property with the same 200 rented nights across 20 stays has an average of 10 nights and fails the 7-day rule.
Compute at the activity level, typically per property. One or two long off-season bookings can swing the average above 7 nights and disqualify the property for that year. Track bookings throughout the year, not just at year-end.
Effect of the exclusion
Once excluded from rental activity treatment, the activity is a non-rental trade or business. The seven material participation tests under Temp. Reg. 1.469-5T determine whether the taxpayer materially participates. If material participation is met, the activity is nonpassive and losses offset W-2 and other active income.
The exclusion does not require Real Estate Professional Status. REPS and the STR loophole are independent pathways to nonpassive treatment. The STR loophole is often the easier path for a W-2 high earner who cannot meet the REPS 750-hour and more-than-half tests.
What does not qualify
Long-term rentals with 30-day-minimum leases. Corporate housing arrangements with multi-month leases. Mid-term rentals positioned in the 30 to 90 day range. Properties where occasional long bookings push the average above 7 nights.
A property rented out as both short-term and long-term in the same year is analyzed at the activity level. If the property's overall average stay is above 7 nights, the STR loophole does not apply for that year.
Documentation requirements
Track every booking with check-in date, check-out date, and customer (or anonymous booking ID). At year-end, divide total nights rented by number of distinct bookings to compute the average. Airbnb and Vrbo reports typically provide this data. Export and archive.
The 7-day computation is the first thing an audit examiner checks for an STR loophole claim. Documentation must be available and verifiable. Reconstructed counts from memory will not survive scrutiny.
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.
- What if my average is 7 nights exactly?
- Seven nights or less qualifies. Eight nights does not. The threshold is strict.
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.