Free Cost Segregation Savings Estimate: 2026 Guide
A free cost segregation savings estimate tells you roughly how much depreciation you could accelerate on a property before you spend a dollar on a full engineering study. Here's how to get one, what to ask for, and how to read the number once it lands in your inbox.
- A free cost segregation savings estimate uses your purchase price and property type to model a typical reclassification, no site visit needed.
- Most residential rental properties see 20 to 45 percent of value reclassified into 5, 7, or 15-year property.
- Estimates are directional only, a full engineering-based study at $2,200 flat fee confirms the real number.
- 100 percent bonus depreciation applies to property acquired and placed in service after January 19, 2025 under the OBBBA, so 2026 purchases qualify in full.
- Request the estimate with your closing statement and depreciation schedule ready, that alone saves a full round of email back-and-forth.
Why this matters
Cost segregation reallocates part of a building's value out of 27.5 or 39-year depreciation and into 5, 7, and 15-year buckets. Those shorter-life assets qualify for bonus depreciation, which sits at 100 percent again in 2026 for property acquired and placed in service after January 19, 2025 under the One Big Beautiful Bill Act.
The math only matters if the property is worth the paperwork. A $180,000 single-family rental and a $1.2 million short-term rental portfolio produce very different first-year deductions, and a free estimate is the fastest way to find out which one you're dealing with before you commit $2,200 to a full study.
Think of the estimate as a screening tool, not a tax document. It won't get filed with your return, and it isn't a substitute for the 100-plus page engineering report your CPA actually uses. It just tells you whether ordering that report makes financial sense this year.
What you'll need
- Purchase price and closing date of the property
- Property type (single-family rental, Airbnb, VRBO, duplex, condo, or long-term residential rental)
- Approximate square footage and land-to-building value split, if you have it
- Your marginal tax bracket, or a W-2 income estimate if you don't know it offhand
- Whether the property is placed in service already or you're still shopping
- Access to cost segregation calculator tools if you want a rough number before reaching out for a manual estimate
None of this needs to be exact. A ballpark purchase price and property type gets you 90 percent of the way to a usable estimate.
The steps
1. Pull your purchase price and closing documents
Your purchase price is the single biggest input in any estimate. Grab the settlement statement or purchase agreement, since that number anchors the entire calculation.
Common mistake: using the county assessor's value instead of the actual purchase price. Assessors often lag market value by a year or more, and that skews the reclassification estimate low or high depending on the market.
2. Confirm the property type and use
A short-term rental that averages 7 days or less per booking is treated differently than a long-term residential lease under the material participation rules tied to the STR loophole. Note whether the property is an Airbnb, VRBO, duplex, condo, or straight long-term rental, because the reclassification percentage and depreciation strategy shift with use.
Properties held under 300 average nights of personal use, actively managed, and rented short-term typically land at the higher end of the 20 to 45 percent reclassification range.
3. Run a rough number with a calculator, then request the manual estimate
A calculator gives you a fast, generic percentage. A manual estimate, requested through the website or by email, factors in your specific property type and use pattern for a tighter number.
Assume a 25 percent reallocation for illustration. On a $400,000 property, that's $100,000 moved into 5, 7, and 15-year assets. At 100 percent bonus depreciation in 2026, most of that $100,000 becomes a first-year deduction instead of trickling out over 27.5 years.
Expected outcome: within a few business days you'll have a range, not a single number, since estimates are never a guarantee of study results.
4. Check the number against your tax bracket
A high W-2 earner in the 37 percent bracket sees roughly $37,000 in tax savings on that same $100,000 reclassification, assuming the deduction offsets active or passive income you can actually use. This is where you calculate your ROI before ordering a study rather than guessing.
Common mistake: assuming the full deduction offsets W-2 income automatically. Whether it does depends on material participation hours and whether the rental qualifies for the STR loophole or real estate professional status. That's a conversation for your CPA, not the estimate itself.
5. Compare the estimated savings to the study cost
This is the actual decision point. If the estimate suggests a $15,000 to $40,000 deduction and how much a cost segregation study costs is a flat $2,200, the math is straightforward. If the estimate suggests a $3,000 deduction on a $150,000 property, the ROI calculation gets tighter and you should weigh timing.
Expected outcome: a clear yes, no, or wait-until-next-year answer, not a maybe.
6. Time the request around your placed-in-service date
Bonus depreciation and the reclassified assets apply in the tax year the property is placed in service, not the year you order the study. If you're closing in December 2026, request the estimate before year-end so you know whether ordering the full study before your CPA files makes sense.
Common mistake: waiting until tax season to request an estimate on a property purchased the prior year. You can still catch up missed depreciation later, but it's simpler to plan the deduction into the correct tax year up front.
7. Read the estimate as a range, not a guarantee
When the estimate arrives, it will show a range of likely reclassified value, not a locked-in dollar figure. Free manual estimates and calculator tools are directional; only the full engineering-based study, delivered as a 100-plus page report in 3 to 5 business days, produces the exact number your CPA files.
“An estimate tells you whether the study is worth ordering. The study is what your CPA actually files.”
Troubleshooting
- The estimate seems too low for your property type. Double-check that you listed the correct use category. A duplex used as two separate long-term rentals estimates differently than a single-family short-term rental.
- You don't know your exact purchase price yet. Use your offer price or a comparable recent sale. The estimate will adjust once you have the closing statement.
- You're not sure if you qualify for the STR loophole. That depends on material participation hours and average rental length, not the estimate itself. Read up on the STR loophole rules before assuming the deduction offsets W-2 income.
- The property was purchased before January 19, 2025. Bonus depreciation rules differ for property placed in service before that date under OBBBA, so flag this when requesting the estimate.
- You got two different percentages from two different calculator tools. Generic calculators use national averages. A manual estimate that accounts for your specific property type will usually land closer to what a full study finds.
- The number looks good, but you're not sure it's worth $2,200. Run the ROI math directly: reclassified value times your tax bracket, divided by the flat fee. If that ratio is above 5x, it's rarely a close call.
Tools and resources
- A free manual savings estimate, requested through the website or by email
- Cost segregation calculator tools for a quick first pass
- Your most recent depreciation schedule, if the property has been in service for a year or more
- Closing statement or purchase agreement showing purchase price and closing date
- A conversation with your CPA once the estimate confirms the study is worth ordering
Get your free savings estimate
Send your property details and get a manual estimate back within a few business days.
What to do next
Once the estimate confirms a study is worth ordering, the next step is understanding what the flat-fee study actually delivers and how long it takes. A flat-fee cost segregation vs DIY calculator comparison walks through exactly where the free estimate stops and the paid, audit-defensible report begins.
FAQ
How much does a free cost segregation savings estimate cost?
A manual savings estimate costs nothing when requested through the website or by email. It's a screening tool, separate from the $2,200 flat-fee engineering study that produces the audit-defensible report.
Is a free cost segregation savings estimate a guarantee of results?
No. Estimates and calculator tools show typical averages based on property type and purchase price, never a guaranteed dollar figure. Only a completed engineering-based study confirms the actual reclassified amount.
What information do I need to request an estimate?
Purchase price, closing date, property type, and approximate square footage cover most of what's needed. A rough marginal tax bracket helps translate the reclassification percentage into an actual dollar savings figure.
How long does it take to get a savings estimate back?
Manual estimates typically return within a few business days of the request. A full engineering-based study, once ordered, takes 3 to 5 business days to complete.
Does the estimate change if the property is a short-term rental versus a long-term rental?
Yes. Short-term rentals actively managed under the STR loophole often reclassify toward the higher end of the 20 to 45 percent range, while long-term residential rentals can land lower depending on the property's components.
Do I need an estimate before ordering the full study?
It's not required, but it's the fastest way to confirm the study's ROI before paying the $2,200 flat fee. Most investors use the estimate to decide timing, then order the study once the property is placed in service.
Does bonus depreciation affect the estimate in 2026?
Yes. Property acquired and placed in service after January 19, 2025 qualifies for 100 percent bonus depreciation under the OBBBA, meaning most of the reclassified value shows up as a first-year deduction in 2026 rather than spreading over decades.
Can I get an estimate on a property I haven't closed on yet?
Yes, using the expected purchase price and property type. It's a common way to compare deals before deciding which property to buy.
One last thing
The biggest mistake investors make with a free estimate isn't misreading the percentage, it's requesting it too late. A property placed in service in November 2026 still qualifies for the full 2026 tax year, but only if the study is ordered and completed before your CPA files. Request the estimate the week you close, not the week before your tax deadline.