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Cost Segregation ROI Calculator
Cost seg reclassifies real property into shorter recovery classes for accelerated depreciation.
Year 1 tax savings
$74,000
Net benefit
$62,000
Reclassified amount
$500,000
How the math works
Reclass = basis × reclass %. Bonus = reclass × bonus %. Y1 savings = bonus × tax rate.
$2M × 25% = $500k reclass × 40% = $200k bonus × 37% = $74k tax savings − $12k = $62k net.
EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.
Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.
Learn more about our review process on the EveryCalc methodology page.
How this calculator works
What this page estimates
This Cost Segregation ROI Calculator is built to give a quick, browser-based estimate for cost segregation roi. Cost seg reclassifies real property into shorter recovery classes for accelerated depreciation. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.
Calculation approach
The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For finance tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.
Example workflow
For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.
Practical checks
- Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
- Run a low, base, and high case when the inputs are estimates.
- Check the related calculators below when the next decision depends on a different assumption.
How to interpret the cost segregation roi result
Best use
Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.
Cross-check
Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.
Watch for
Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.
This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.
Before relying on this cost segregation roi estimate
Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.
Confirm source numbers
Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.
Separate cash flow from total cost
A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.
Run conservative cases
Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.
Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.
How to Use
- Enter building basis.
- Enter reclassification %.
- Enter bonus depreciation %.
- Enter marginal tax rate %.
- Enter study cost.
- Read year 1 tax savings.
Frequently Asked Questions
Cost segregation economics?
Reclassify 5-yr (carpet, equipment), 7-yr (FF&E), 15-yr (land improvements) personal property from 27.5/39-yr real property. Typical reclassification: 25–35% of building basis. Bonus depreciation 60% (2024) → 40% (2025) → 20% (2026) → 0% (2027) on reclass items. Study cost: $5–25k typical. Best for: properties >$1M basis, hold ≥5 years, high tax bracket investor. Trade-off: higher recapture at sale (Section 1245 ordinary rate vs Section 1250 25%).
How is this tax impact computed?
Tax outcomes depend on filing status, income bracket, depreciation schedule, basis adjustments, AMT exposure, and state conformity. Real estate tax planning typically involves cost segregation, 1031 exchanges, opportunity zone, depreciation recapture, passive activity rules, and entity structure (LLC vs partnership vs S-corp). This calculator provides directional analysis — final position requires CPA review.
State conformity?
States vary on conformity to federal tax code: California, NY, MA decouple selectively. Bonus depreciation: most states reduce or eliminate. QBI: most states don't conform. Section 1031: federal-only deferral, some states require state-level recapture. Property tax cap: state-specific (CA Prop 13, MI Headlee, FL SOH). Multi-state property requires apportionment analysis.
When to prioritize this strategy?
Tax strategies have setup cost, complexity, and audit risk. Cost segregation: $5–15k study, materially helps high-basis investors. 1031: 45/180 day deadlines, identification rules, qualified intermediary fees. Opportunity Zone: long hold required. Stack strategies: don't double-count benefits. CPA + tax attorney coordination essential for $1M+ strategies.
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