Frequently asked questions
Answers to common questions about cost segregation, the STR loophole, and what a study
costs.
- What is short-term rental cost segregation?
- Short-term rental cost segregation is an engineering-based tax strategy that reclassifies components of your STR property (cabinets, flooring, HVAC, landscaping, etc.) from the default 39-year depreciation schedule into 5-, 7-, or 15-year categories. This front-loads depreciation deductions, generating significant Year 1 tax savings. STRs use a 39-year recovery period because they are classified as nonresidential rental activity when the average guest stay is 7 days or less.
- How does the STR loophole work with cost segregation?
- The STR loophole allows short-term rental owners who materially participate in their rental activity to reclassify their losses as non-passive. When combined with cost segregation, this creates large paper losses from accelerated depreciation that can directly offset W-2 wages, business income, and other ordinary income. The key requirements are: average guest stay of 7 days or less, and material participation (typically 100+ hours and more than any other individual).
- Can I do a cost segregation study on an Airbnb I already own?
- Yes. A look-back cost segregation study allows you to capture all missed accelerated depreciation from prior years in a single catch-up deduction using IRS Form 3115 (Change in Accounting Method). This is filed with your current-year return and requires no amended returns. Many STR owners discover cost segregation years after purchasing their property and successfully claim substantial catch-up deductions.
- What is the 7-day rule for short-term rentals?
- The 7-day rule, found in Treasury Regulation Section 1.469-1T(e)(3)(ii)(A), states that a rental activity is not treated as a 'rental activity' for passive loss purposes if the average period of customer use is 7 days or less. This reclassifies the STR as a trade or business under Section 162, allowing losses to be non-passive when the owner materially participates. The average is calculated by dividing total guest-nights by total number of bookings.
- How much does a cost segregation study cost for a short-term rental?
- A cost segregation study for a single-unit STR property starts at $1,750 with SMF Cost Segregation Advisors. The typical return on investment is 10-20x the study cost. For example, a $350,000 Airbnb property can generate $25,000-$35,000 in first-year tax savings from a $1,750 study. Portfolio discounts are available for owners with multiple STR properties.
- Do I report my STR on Schedule C or Schedule E?
- Most STR owners report on Schedule E, even when using the STR loophole. Schedule C is generally reserved for operators providing substantial services (daily maid service, concierge, meals). Reporting on Schedule E with non-passive treatment avoids self-employment tax while still allowing losses to offset ordinary income. Consult your CPA for your specific situation.