High-basis properties in America’s most expensive state tax environment, where cost segregation deductions approach 50¢ on the dollar.
Estimates are for illustration only. Details
Los Angeles is a collection of micro-markets with wildly different economics. Silver Lake draws creative-class travelers paying $300+ per night for architecturally significant homes. Venice commands premium rates for walkability to Abbot Kinney and the beach. West Hollywood caters to entertainment industry visitors on production schedules. STR regulations vary by neighborhood, but where permitted, nightly rates are among the highest in the country. Property values of $800K–$2M put LA in the upper tier of cost segregation ROI.
The math is simple: California’s 13.3% top marginal rate stacked on federal rates pushes combined brackets near 50%. Every dollar a cost seg study reclassifies from 27.5-year to 5-year property saves roughly 50¢ in taxes in Year 1. LA properties also tend to have high renovation bases — designer kitchens, ADU conversions, smart home systems, pools, and hardscaped outdoor spaces — all of which are short-life assets. A $1M LA property can generate $200K–$300K in accelerated deductions.
A 3BR mid-century home in Silver Lake purchased for $1M with a converted garage ADU. After $300K in land value, the $700K adjusted basis is studied. The cost seg identifies $70K in 5-year property (appliances, smart home system, lighting, security cameras, window treatments), $45K in 7-year property (custom cabinetry, built-in shelving, furniture), and $110K in 15-year property (pool, ADU site work, landscaping, fencing, driveway, irrigation). Total reclassified: $225K in Year 1.
LA investors who qualify for real estate professional status or meet material participation requirements can use cost seg deductions to offset W-2 income — a massive advantage where entertainment industry salaries push combined rates to nearly 50%. Even passive investors benefit by stacking accelerated depreciation against rental income and other passive gains. The ADU boom in LA creates additional opportunities: a $150K garage conversion adds depreciable basis heavily weighted toward short-life assets.
California’s top rate of 13.3% is the highest state income tax in the country. Combined with the 37% federal top bracket, high-income LA investors face marginal rates approaching 50%. A $225K reclassification at a 50% combined rate generates approximately $112K in Year 1 tax savings — on a study that costs around $1,200.
Illustrative estimate. Final allocations vary based on property facts and report findings.
Component-by-component breakdown, MACRS schedules, and Form 3115 filing instructions. This is the actual deliverable — see exactly what your CPA receives.
View Los Angeles Sample Report →No. Cost segregation is explicitly supported by IRS guidelines (Rev. Proc. 87-56) and the IRS Audit Techniques Guide for Cost Segregation. Tens of thousands of studies are filed every year. Our reports are designed to withstand scrutiny — that's why they run 40+ pages with component-level documentation.
Cost segregation is standard practice, not a loophole. The IRS has published formal guidance on how to do it correctly. Every Big 4 accounting firm offers it. We follow the same engineering-based methodology — just faster and at a fraction of the cost.
You'll owe depreciation recapture at 25% on the accelerated portion when you sell. But if you 1031 exchange into another property, recapture is deferred indefinitely. For most investors, the upfront tax savings far outweigh the eventual recapture — especially when you factor in the time value of money.
Most CPAs know about cost segregation but don't proactively recommend it because they don't do the engineering analysis in-house. That's what we provide. Your CPA files the results — we email them a CPA-ready package with everything they need, and we answer any questions they have directly.
Short-term rentals contain a higher concentration of depreciable personal property than almost any other residential property type. Furniture, appliances, linens, kitchenware, electronics, decorative fixtures, and specialty items like hot tubs or game room equipment all qualify as 5-year property under the IRS MACRS classification system. This furniture, fixtures, and equipment (FF&E) component typically represents 15-20% of the depreciable basis.
Beyond interior components, site improvements add additional reclassification value. Driveways, walkways, patios, outdoor lighting, fencing, landscaping, and irrigation systems fall into the 15-year MACRS class rather than the default 27.5-year residential schedule. For STR properties with pools, outdoor kitchens, or fire pits, these components can represent a meaningful share of the total reclassified amount.
With 100% bonus depreciation permanently restored under the One Big Beautiful Bill Act (signed July 2025), every dollar reclassified into 5-year, 7-year, or 15-year MACRS classes is deductible in full in the first year. For STR owners who materially participate in their rental operation, these accelerated deductions can offset W-2 and business income — not just passive rental income.
If your property is a passive investment managed entirely by a third party, the accelerated depreciation may only offset passive income. If your property has minimal furnishings or you plan to sell within 1-2 years, the benefit may be reduced. Actual results vary based on property age, condition, renovations, and local construction costs.
This Airbnb investor ordered a cost segregation study and used the accelerated depreciation on their next tax return. Here's what happened.
| Price | Accelerated | Tax Savings | Study Cost | ROI |
|---|---|---|---|---|
| $300K | $72,000 | $26,640 | $795 | 34x |
| $500K | $120,000 | $44,400 | $795 | 56x |
| $750K | $180,000 | $66,600 | $795 | 84x |
| $1M | $240,000 | $88,800 | $1,195 | 74x |
| $400K | $96,000 | $35,520 | $795 | 45x |
| $600K | $144,000 | $53,280 | $795 | 67x |
| $1.5M | $360,000 | $133,200 | $1,195 | 111x |
| $450K | $108,000 | $39,960 | $795 | 50x |
| $700K | $168,000 | $62,160 | $795 | 78x |
| $800K | $192,000 | $71,040 | $795 | 89x |
| Property Type | Accelerated | Tax Savings | Study Cost | ROI |
|---|---|---|---|---|
| Airbnb / Short-Term Rental | $240,000 | $88,800 | $1,195 | 74x |
| Multifamily | $176,000 | $65,120 | $1,495 | 44x |
| Rental Property | $160,000 | $59,200 | $1,195 | 50x |
| Office | $142,500 | $52,725 | $1,495 | 35x |
A cost segregation study is an engineering-based analysis that reclassifies components of your property into shorter IRS depreciation categories (5, 7, and 15 years) instead of the default 27.5 or 39 years. This accelerates your depreciation deductions, reducing your tax bill in the early years of ownership.
Short-term rentals are typically furnished with furniture, appliances, electronics, linens, kitchenware, and décor — all of which qualify as 5-year personal property under MACRS. This FF&E (furniture, fixtures, and equipment) often represents 15-20% of the property's depreciable basis, significantly increasing the accelerated depreciation amount compared to unfurnished long-term rentals.
Material participation means you're actively involved in your rental operation — managing bookings, communicating with guests, coordinating maintenance, and making business decisions. If you spend 100+ hours on these activities and nobody else spends more time than you, the IRS treats your rental as non-passive. This allows you to deduct the accelerated depreciation against your W-2 or business income, not just rental income.
Yes. The One Big Beautiful Bill Act permanently restored 100% bonus depreciation for property placed in service in 2025 and beyond. This means you can deduct the full amount of accelerated depreciation identified in your cost segregation study in year one.
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