Engineering-based studies · Form 3115 look-back · Serving owners nationwide A Shurek Accounting & Tax company  ·  (555) 555-0142
Commercial high-rise buildings viewed from street level

Depreciation recovery · cost segregation · nationwide

We find the depreciation your return left behind.

Missed bonus. Improvements parked on 39-year schedules. Whole buildings on one straight line. We analyze what you bought, what you built and what your schedule already says — then pull forward every deduction the law allows. Cost segregation is how; recovered tax is the point.

Book a free feasibility call
20–35%Typical basis reclassified
100%Bonus depreciation, now permanent
1987How far back we can look
NoAmended returns required
Reallocation calculator $2,000,000 basis
As filed — one asset39-year straight line
After an engineering study21% reclassified
$420,000 reclassified to short life
$140,000 est. first-year tax deferred

Move the slider and pick a type — the split and the first-year number update live. Figures assume the permanent 100% bonus rules and are an illustrative planning range, not a quote. Your building's real numbers come from the engineering.

The idea, in plain English

01Your building is full of fast-wearing parts

Carpet, parking, wiring, cabinets, landscaping. None of it lasts 39 years, and the tax code knows it.

02Those parts can be written off in 5–15 years

Instead of 39. Someone just has to prove which parts — and what they cost. That proof is an engineering study.

03The payoff lands on your next return

Often six figures of deductions pulled forward. Owned it for years? One form catches you up — no amended returns.

Is this you?

Thirty seconds of honesty before you spend twenty minutes with us.

Worth a call if…

  • You own commercial or rental property with $500K+ of building basis
  • You're paying real tax — this only helps if there's tax to defer
  • You bought, built or renovated any time since the late '80s
  • You plan to hold for a few more years

Probably not, honestly, if…

  • You're selling within a year or two — recapture eats the benefit
  • Your losses would just sit suspended and you'd rather not wait
  • The building basis is small enough that the fee wouldn't clear

If that's you, we'll say so on the free call and save you the fee.

From delivered studies

Real numbers, real buildings. Names withheld.

Our biggest single find

≈$547,000 refunded on depreciation that was already on the schedule

A $1.5M improvement to a commercial property sat correctly listed as 15-year property — with the bonus depreciation it qualified for never claimed. We caught it inside the amendment window, amended the returns, and the owner received a refund of approximately $547,000. Nothing was restructured. Someone just read the schedule.

Mobile home park · 2019 look-back

42% of basis accelerated

$1.28M purchase. After carving chattel homes and goodwill out of basis, $226K moved into 5 and 15-year classes — roads, utility laterals, pedestals, park-owned homes.

Mobile home park · placed in service 2025

36% into 5 & 15-year lives

$827K purchase with a small apartment building on site. $61K of basis bonus-eligible in year one under the permanent 100% rules.

Residential rental · tax year 2023

$142K reclassified to 5-year

$602K depreciable basis. Cabinetry, flooring, appliances, dedicated electrical — 24% of the property pulled off the 27.5-year schedule, component by component.

Figures taken directly from studies we delivered. Identifying details withheld for client privacy. Your building's numbers come from your building's engineering.

The arithmetic

A deduction in year one is worth more than the same deduction in year thirty.

That is the entire premise. Nothing about a cost segregation study creates a deduction you were not entitled to — it moves deductions forward, and money moved forward is money you can deploy.

Since the 2025 legislation restored 100% bonus depreciation permanently for property acquired and placed in service after 19 January 2025, every dollar reclassified to a 5, 7 or 15-year life is generally deductible in full the year the property goes into service. There is no phase-down waiting on the other side of this one.

Use the estimator to see the shape of it, then let us build the real number.

Planning estimator

Rough out the number before you call

Added first-year deduction
Federal & state tax deferred
Basis reclassified
Straight-line deduction without a study

Planning ranges only, drawn from studies of comparable buildings and assuming 100% bonus depreciation applies. Real results depend on your building's actual components, your basis allocation and whether passive activity rules let you use the deduction this year. Not tax advice.

Book a call

How it runs

Five steps, four to six weeks, one report you can hand to an examiner.

The IRS's own audit guide describes thirteen principal elements of a quality study. We build to that standard on every engagement, whether the building cost four hundred thousand dollars or forty million.

Open-plan office interior with modular partitions and suspended lighting
01Feasibility

Twenty minutes, no fee. We look at basis, placed-in-service date, entity and your tax posture, and tell you the expected range and whether it clears the fee.

02Document collection

Closing statement, appraisal, depreciation schedule, and whatever construction records exist — drawings, AIA pay applications, change orders, invoices.

03Site inspection

Photograph and measure the property, take off components, and record conditions. Where travel is not practical we run a documented virtual inspection.

04Engineering & costing

Direct takeoff where records permit, published cost data where they do not. Every component is priced, classified, and tied to authority.

05Report & filing support

A bound report with the asset detail, legal citations and photos, plus the Form 3115 or Form 4562 schedules your preparer needs.

S

The study is one piece. We can handle the rest of the return.

Deprecio is part of the Shurek Accounting & Tax family of brands. If you want the study and the tax work under one roof — the return, the Form 3115, entity structure, quarterly estimates, multi-state filings — that is a single engagement, not a hand-off between two firms.

Questions owners actually ask

Is cost segregation legal, or is it aggressive tax planning?

It is neither new nor aggressive. The authority runs back to Hospital Corporation of America v. Commissioner in 1997, and the IRS publishes its own Cost Segregation Audit Techniques Guide describing what a quality study contains. What matters is method: an engineering-based study with documented takeoffs and cited authority is routine. A rule-of-thumb percentage applied without support is the thing that draws attention.

Do I have to amend prior returns to catch up missed depreciation?

No. If you have owned the property for more than a year and have been depreciating it on a straight-line schedule, you change your accounting method by filing Form 3115 with your current return. Every dollar of depreciation you should have taken since you placed the property in service comes forward as a single catch-up adjustment in the current year. No amended returns.

What does a study cost?

Residential studies generally run from the low four figures; commercial studies scale with size and complexity. Every engagement starts with a free feasibility review that gives you an expected benefit range before you commit to anything. If the numbers do not clear the fee, we will tell you that. See pricing and packages.

What happens when I sell the property?

Depreciation on 5 and 7-year personal property is recaptured as ordinary income under section 1245 to the extent of gain; 15-year land improvements and building depreciation fall under section 1250 rules. Acceleration is a timing benefit plus a rate and time-value benefit, not a permanent exclusion — and if the property passes through an estate or a 1031 exchange, the analysis changes again. We model the exit before you file, not after. See depreciation recapture.

Can you work with my existing CPA?

Most of our work arrives that way. We deliver the study, the asset detail and the Form 3115 or Form 4562 schedules directly to your preparer and take their questions. If you would rather have the study and the return under one roof, Shurek Accounting & Tax handles the full engagement.

Is it too late if I bought the property years ago?

Almost certainly not. A study can look back to any property placed in service after 1986 that you still own. Owners who bought in 2015 and have been on a straight-line schedule ever since are frequently the best candidates, because a decade of missed acceleration comes forward at once.

No-cost feasibility review

Find out what your building is hiding.

A feasibility review is free and takes about twenty minutes. Bring the closing statement and the depreciation schedule; we will tell you plainly whether a study pays for itself.

Book a 20-minute call