North Star · Cost Segregation Specialists
There's a six-figure deduction
hiding in your building.
Engineering-based cost segregation reclassifies parts of your property onto faster depreciation schedules — turning decades of write-offs into cash you keep this year.
How it works
An engineering study the IRS has recognized for decades.
We break your property into its real components and put each on the fastest schedule the tax code allows.
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1
We study your property
Our engineers identify the assets — flooring, fixtures, site work, specialty systems — that qualify for 5, 7, and 15-year depreciation instead of 39.
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2
We reclassify the assets
Those components move onto faster schedules and, where eligible, take bonus depreciation — pulling the deductions into year one.
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3
You keep the cash
You get a larger first-year deduction and an audit-ready report. Already own the building? Form 3115 captures prior years without amending returns.
Instant estimate
See your first-year tax savings.
Three inputs, no obligation. Numbers use current bonus depreciation rules — see what your building could save.
Estimated first-year tax savings
$0
That's your estimated first-year tax savings. Study pricing depends on your building, so we give you a firm quote once we've talked — request your detailed estimate below and we'll take it from there. No cost to find out what you could save.
Estimate based on national averages for your property type and current bonus depreciation. Your actual study may yield more. This is an estimate, not tax advice.
Why owners do this
The deduction you're owed is worth more today.
Front-loaded deductions
Pull years of depreciation into year one and put that tax savings to work now instead of decades from now.
Outsized first-year impact
A study routinely reclassifies a large share of your building onto faster schedules — turning it into significant first-year tax savings.
Catch-up on prior years
Already own it? Form 3115 lets you claim missed depreciation in a single year — no amended returns.
Audit-ready documentation
An engineering-based report with the detail and citations your CPA and the IRS expect.
$2,000,000 commercial office
Placed in service this year, top federal bracket. Here's how a typical first-year picture can look — your study is based on your building's actual components.
Watch & learn
Cost segregation, explained.
Short videos on how studies work and why they pay off.
Get started
Get your detailed estimate.
Tell us where to send it. We'll review your property and follow up with a firm, audit-ready quote.
Questions
Common questions.
What kinds of property qualify?
Commercial buildings and residential rentals — offices, retail, warehouses, multifamily, hotels, medical, restaurants, self-storage, and short-term rentals. If you own income-producing real estate, it's usually worth a look.
I bought the building a few years ago. Too late?
No. A "look-back" study with IRS Form 3115 lets you capture the depreciation you missed in a single year, without amending prior returns.
How accurate is the estimate above?
It's a ballpark based on national averages for your property type and current bonus depreciation. Your real study is based on your building's actual components and often yields more.
What does a study cost?
Pricing depends on your property — its size, type, and complexity. We give you a clear, firm quote up front, before any engagement. Start with a free savings estimate and we'll take it from there.
Will this hold up with my CPA and the IRS?
Yes. You receive an engineering-based report with the documentation and citations your CPA needs to file with confidence.
See what your building could save.
Run a free estimate in about a minute — no obligation, no account required.
Get my free estimate