🇺🇸 Made in America·100% U.S.-Based Team · 24+ Years in Cost Segregation
📞 1-888-365-5023info@costsegamerica.com
24+ Years of Studies
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125+ IRS Audits Defended
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ZERO Audits Lost. Ever.
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$0 Ever Returned to IRS
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24+ Years in Cost Segregation
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100% U.S.-Based Team
How to Read Your Number

In one sentence: this calculator takes your property type and price, removes the land for your state and city, and shows the range of first-year deductions owners like you typically see, in about a minute.

Meet Tasha. She bought a $550,000 short-term rental near the beach and had heard cost segregation was "for big commercial guys." She picked short-term rental, entered $550,000 and her state, and the calculator subtracted a typical land share before doing any math, because land never depreciates and a tool that skips that step flatters you. Her estimate came back at roughly $120,000 to $200,000 in first-year deductions. Not a promise. A range built from what properties like hers actually produce. It was enough to tell her the study would pay for itself many times over, and enough to make the free proposal worth fifteen minutes of her time. The proposal, based on her actual building, came in at a minimum of $135,000.

The calculator estimates. The proposal measures your property. The engineered study proves it. Use the number below to decide whether the next step is worth your time. Most owners find that it is.

Reviewed by the Cost Seg America team. Last reviewed September 2026. Educational tool, not tax advice. Numbers are illustrative; your CPA applies the results to your return.

Free Savings Estimator

On a $2M Property,
CSA Finds $540,000 in Write-Offs.

What's sitting in yours?

16,000+
Studies completed
125+
IRS audits — zero losses
$0
Ever returned to IRS
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Step 1 of 3 — The property
Condo units do not include land or site improvements — those belong to the HOA. Enter your unit purchase price. All accelerated depreciation comes from interior personal property.
This estimate assumes tenant-owned homes. Own your park homes? Your actual savings will be significantly higher. Tell us in your free proposal.
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Step 2 of 3 — Where is the property?

Land cannot be depreciated. Select your state then city for automatic land value.

Land value affects your depreciable basis. Site-specific land analysis included with every free proposal.

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Step 3 of 3 — Year & tax rate
Before Jan 20, 2025: 40% bonus. On or after Jan 20, 2025: 100% (OBBBA).
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Most investors: 35–45%
Year 1 Tax Deduction
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you keep — not the IRS's
Low estimate
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Expected
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High estimate
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Range reflects variation across similar properties
Depreciable basis
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5-yr personal property
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15-yr land improvements
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Cost basis allocation
5-year personal property
15-year land improvements
Straight-Line Depreciation (27.5 / 39-yr)
See how land value affects your savings.
Land value directly reduces your depreciable basis — the higher it is, the smaller your write-off. Move the slider to see how it affects your result. Every free proposal includes a site-specific land analysis.
Land value:——
Full calculation breakdown
Purchase / construction cost
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Less: land value
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Depreciable cost basis
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5-year personal property
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15-year land improvements
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Straight-Line Depreciation
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Bonus depreciation applied
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Year 1 tax deduction (5-yr + 15-yr × bonus rate)
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Estimated taxes you keep
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This is an estimate — every property is different.
This estimate draws on 16,000+ completed studies. A formal engineering study determines the exact figure for your property. Actual results depend on construction, age, and components. Our team does that for you.
Get the exact figure for your property.
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