Phoenix and the greater Valley of the Sun offer lower land values and strong winter tourism — a combination that maximizes the cost segregation benefit for Airbnb investors.
| MACRS Class | Amount | % of Accelerated | Bonus Eligible |
|---|---|---|---|
| 5-Year Property | $95,200 | 70% | Yes — 100% |
| 7-Year Property | $10,880 | 8% | Yes — 100% |
| 15-Year Property | $29,920 | 22% | Yes — 100% |
| 27.5yr Property | $264,000 | 66% | No — standard schedule |
| Total Depreciable Basis | $400,000 | 100% | — |
| Method | Year-1 Deduction | Difference |
|---|---|---|
| Standard Straight-Line (27.5yr) | $14,545 | — |
| With Cost Segregation + Bonus | $136,000 | +$121,455 |
The Phoenix metro area — including Scottsdale, Tempe, Mesa, and Chandler — is one of the fastest-growing Airbnb markets in the country. Winter snowbird demand, spring training baseball, golf tourism, and a growing corporate event scene create reliable STR revenue from October through April, with summer rates dropping but never disappearing thanks to the pool-party and resort crowd.
One factor that makes Phoenix particularly favorable for cost segregation: relatively low land-to-building ratios compared to coastal markets. When land represents a smaller share of the purchase price, more of your investment sits in the depreciable building — and more of that building can be reclassified into shorter MACRS classes. A $500K Phoenix Airbnb typically yields $136K+ in accelerated depreciation.
Arizona has a flat 2.5% state income tax (one of the lowest in the country), so Phoenix STR investors capture nearly all of the cost segregation benefit at the federal level. Combined with 100% bonus depreciation, a materially-participating Airbnb host in the 37% bracket can generate $50K+ in real tax savings in year one — money that often gets reinvested into a second property.
| Price | Accelerated | Tax Savings | Study Cost | ROI |
|---|---|---|---|---|
| $300K | $81,600 | $30,192 | $795 | 38x |
| $500K | $136,000 | $50,320 | $795 | 63x |
| $750K | $204,000 | $75,480 | $795 | 95x |
| $1M | $272,000 | $100,640 | $1,195 | 84x |
| $400K | $108,800 | $40,256 | $795 | 51x |
| $600K | $163,200 | $60,384 | $795 | 76x |
| $1.5M | $408,000 | $150,960 | $1,195 | 126x |
| Property Type | Accelerated | Tax Savings | Study Cost | ROI |
|---|---|---|---|---|
| Airbnb / Short-Term Rental | $136,000 | $50,320 | $795 | 63x |
| Rental Property | $72,000 | $26,640 | $795 | 34x |
| Duplex | $76,000 | $28,120 | $995 | 28x |
| Condo | $60,000 | $22,200 | $795 | 28x |
| Triplex | $76,000 | $28,120 | $995 | 28x |
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.
Under the One Big Beautiful Bill Act (signed July 2025), 100% bonus depreciation is permanently restored for 2025 and beyond. This means every dollar of depreciation reclassified into 5-year, 7-year, or 15-year MACRS classes through cost segregation can be deducted in full in the first year you place the property in service.
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