Charleston Airbnb: Cost Segregation Tax Savings

Charleston's historic charm, culinary scene, and beach community access drive year-round STR demand — and create a rich landscape for cost segregation.

$176,800 Accelerated Depreciation

$65,416 Est. Year-1 Tax Savings

82x Return on Study Cost

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Property Type

Purchase Price

Depreciable Basis (80%) $520,000

Accelerated Depreciation $176,800

Est. Year-1 Tax Savings $65,416

Study Cost $795

Return on Study 82x

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MACRS Depreciation Breakdown

MACRS Class	Amount	% of Accelerated	Bonus Eligible
5-Year Property	$123,760	70%	Yes — 100%
7-Year Property	$14,144	8%	Yes — 100%
15-Year Property	$38,896	22%	Yes — 100%
27.5yr Property	$343,200	66%	No — standard schedule
Total Depreciable Basis	$520,000	100%	—

Method	Year-1 Deduction	Difference
Standard Straight-Line (27.5yr)	$18,909	—
With Cost Segregation + Bonus	$176,800	+$157,891

Estimated deduction based on typical cost segregation allocations for charleston airbnb properties. Actual study results may vary based on property-specific analysis including age, condition, renovations, and local construction costs.

Cost Segregation in Charleston

Charleston has become one of the most sought-after vacation destinations in the Southeast, regularly topping 'best city in America' lists. The combination of the historic downtown district, Sullivan's Island and Isle of Palms beaches, and a nationally renowned restaurant scene creates STR demand that spans the full calendar year — not just summer months.

Properties in Charleston's STR market typically range from $500K downtown carriage houses to $800K+ beachfront homes on the barrier islands. At a $650K average, cost segregation reclassifies approximately $177K into accelerated MACRS classes, generating about $65K in first-year tax savings. The professionally furnished interiors that Charleston's design-conscious market demands translate directly into high FF&E reclassification.

South Carolina's favorable tax environment (top rate 6.5%) keeps the cost segregation benefit predominantly at the federal level. Charleston STR investors who materially participate in their rental operation — managing bookings, coordinating with local property managers, handling guest communication — can deduct the accelerated depreciation against W-2 income. For high-income professionals buying a vacation home that doubles as an investment, this is the most powerful tax strategy available.

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Compare: Charleston Airbnb at Different Price Points

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

Frequently Asked Questions

What is a cost segregation study? ▼

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.

Why do Airbnbs get higher cost segregation deductions? ▼

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.

Is bonus depreciation available in 2026? ▼

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.