Depreciation Recapture: What Cost Segregation Costs You at Sale
Quick Answer: Cost segregation doesn’t create deductions out of thin air — it moves them forward. When you sell, the IRS takes back the depreciation you claimed, and this is where most people get surprised: the components a cost segregation study reclassifies are §1245 property, recaptured at ordinary income rates up to 37% (40.8% with NIIT). Had you left that value in the building shell, it would have been §1250 property, capped at 25% (28.8% with NIIT). So cost segregation is a timing play with a rate penalty attached — you’re trading a 28.8% bucket for a 40.8% bucket in exchange for getting the money years earlier. Whether that trade wins comes down almost entirely to how long you hold. Past roughly five years, the time value of money reliably beats the rate penalty. Under three years, it usually doesn’t, and you should think hard before running a study at all. A 1031 exchange defers the whole problem.
Most articles about cost segregation stop at the good part. You get a big first-year deduction, your tax bill drops, everyone’s happy. Then the property sells and the bill arrives, and nobody warned you what it would look like.
This is that article. It’s the question we get asked most often once someone actually understands the strategy — what happens when I sell? — and it deserves a real answer with real numbers, not a shrug and a “consult your CPA.”
Recapture isn’t a penalty. It’s the other half of the deal.
Depreciation is a deduction against the theory that your building is wearing out. When you sell for more than your depreciated basis, the IRS’s position is straightforward: you clearly didn’t lose that value, so give the deductions back.
That’s recapture. It applies whether or not you ever run a cost segregation study. If you own a rental and depreciate it normally for ten years, you’ll face recapture on that depreciation too. Recapture is not something cost segregation causes. Every real estate investor meets it eventually.
What cost segregation changes is how much you recapture and at what rate. The second part is the one nobody explains.
The part that actually costs you: §1245 vs. §1250
The tax code sorts your property into two buckets, and they’re taxed very differently on the way out.
§1250 property is the building shell — the structure itself, on its 27.5- or 39-year schedule. When you sell, depreciation on it comes back as “unrecaptured §1250 gain,” which carries a maximum rate of 25%. Add the 3.8% net investment income tax and you’re at 28.8%.
§1245 property is everything a cost segregation study pulls out of the shell: the appliances, flooring, cabinetry, decorative lighting, furniture in a furnished rental, and most land improvements like paving and site lighting. Recapture on §1245 property is ordinary income — taxed at your marginal rate, up to 37%. With NIIT, 40.8%.
Read those two paragraphs again, because the implication is the whole point of this article: a cost segregation study takes value that would have been recaptured at a maximum of 28.8% and moves it into a bucket recaptured at up to 40.8%.
That is a real cost. It is not a rounding error. And it’s structural — it doesn’t go away if you find a better firm or a cleverer study.
What that looks like in dollars
Take a $900,000 furnished short-term rental, acquired and placed in service after January 19, 2025 — so it qualifies for the full 100% bonus depreciation that the One Big Beautiful Bill Act made permanent. STRs with average stays of 30 days or less are nonresidential property, so the shell runs on the 39-year schedule.
A study on a property like this typically reclassifies about a third of the basis:
| Class | Amount |
|---|---|
| 5-year (appliances, flooring, furniture, decorative lighting) | $198,000 |
| 7-year (furniture, fixtures & equipment) | $36,000 |
| 15-year (land improvements — paving, site lighting, landscaping) | $54,000 |
| 39-year (building shell) | $612,000 |
| Reclassified out of the shell | $288,000 (32%) |
Year one, with the study: roughly $303,000 in depreciation, because that entire $288,000 gets written off immediately under 100% bonus, plus the first slice of shell depreciation.
Year one, without it: about $22,000. That’s it. The whole $900,000 crawling along a 39-year line.
The difference is about $281,000 in additional first-year deductions, worth roughly $104,000 off a federal tax bill at a 37% marginal rate. That’s the number that sells cost segregation studies, and it’s real.
Now sell in year five.
| With study | Without study | |
|---|---|---|
| §1245 depreciation recaptured (at 40.8%) | $288,000 → $117,500 tax | $0 |
| §1250 depreciation recaptured (at 28.8%) | $77,800 → $22,400 tax | $114,400 → $33,000 tax |
| Total federal recapture tax | ~$139,900 | ~$33,000 |
So the study cost you roughly $107,000 more in recapture tax at sale, in exchange for roughly $104,000 you received four years earlier.
On a nominal basis, at a five-year hold, that’s close to a wash.
So why do it at all?
Because a dollar in 2026 is worth more than a dollar in 2031, and because that framing understates the case.
You didn’t just get $104,000 early — you got it early enough to do something with it. Pay down the loan on the property. Fund the down payment on the next one. Cover the renovation that raises the rent. The entire argument for cost segregation is that capital in your hands today compounds, and capital the IRS is holding does not.
Discount that $107,000 recapture bill back five years at a reasonable 6% and it’s worth about $80,000 in today’s money. Against $104,000 received up front, you’re ahead — but by a margin measured in tens of thousands, not the hundreds of thousands the marketing implies.
That’s the honest picture. It’s still a good trade. It is not free money, and anyone telling you it is hasn’t modeled the exit.
How long you hold decides everything
| Hold period | Verdict |
|---|---|
| Under 3 years | Recapture eats most of the benefit. Generally not recommended. |
| 3–5 years | Near breakeven before discounting; time value tips it slightly favorable. |
| 5–10 years | Generally favorable and clearly NPV-positive. |
| Over 10 years | A clear win, even ignoring time value entirely. |
If you know you’re selling in eighteen months, a study is usually the wrong move, and we’ll tell you that before you pay for one. If you’re holding a decade, the question isn’t really close.
Four ways to soften the hit
A 1031 exchange defers all of it. Roll the proceeds into a like-kind replacement property and both the capital gain and the recapture are deferred, not paid. This is the single biggest lever, and it changes the calculus completely — if a 1031 is genuinely your plan, cost segregation gets attractive even at short hold periods. The catch is that “I might do a 1031” is not a plan. The deadlines are strict and unforgiving.
Partial asset dispositions. When you replace a roof or an HVAC system, you can write off the remaining basis of the old one and remove it from the recapture pool permanently. This is filed via Form 3115, and it’s routinely missed — it requires knowing what the original component was worth, which is exactly what a cost segregation study documents. A study you ran in year one keeps paying you in year eight.
Converting to a primary residence can exclude $250,000 or $500,000 of gain under §121 if you meet the ownership and use tests — but recapture is specifically excluded from that break. You still pay it. This one gets oversold constantly.
Installment sales spread gain across years, but §453(i) generally forces §1245 recapture into the year of sale anyway. Limited help for exactly the portion a cost segregation study creates.
If you’re in California, read this part twice
California does not conform to bonus depreciation at all. Full federal addback, no exceptions.
That means a California investor runs two separate depreciation schedules — a fast federal one and a slow state one — and gets no state-level benefit from that $288,000 first-year write-off. The federal play still works exactly as described above. The state side just grinds along on its own timeline.
It also means California has no capital gains preference: recapture is taxed as ordinary state income, up to 13.3%. Stack that on federal and NIIT and a California high earner faces an effective rate on §1245 recapture in the neighborhood of 54%.
The state interaction is genuinely complicated, and the exact number depends on your state basis, which is not the same as your federal basis. This is a conversation for your CPA with your actual return in front of them — not something to estimate from a blog post, including this one.
New York, Hawaii, New Jersey, Oregon, and Pennsylvania have their own addback rules worth checking before you assume the federal math is the whole story.
The bottom line
Cost segregation is a timing strategy with a rate penalty. You accelerate deductions into today and accept that a chunk of them come back at ordinary rates instead of the 25% the shell would have enjoyed.
Hold long enough and the time value of that money comfortably beats the penalty. Sell quickly and it doesn’t. Do a 1031 and the question largely goes away.
What you shouldn’t do is run a study without knowing which of those you’re in. We model the exit before you commit — including the recapture estimate at your actual expected hold period — because a strategy that looks brilliant in year one and ugly in year three isn’t a strategy, it’s a surprise. For what the study itself involves and a worked example with full numbers, see our cost segregation study service page.
Thinking about a study but not sure the numbers work for your hold period? Contact Apex Reserve Group for a complimentary 30-minute consultation. We’ll model both sides before you spend anything. And if the answer is that a study doesn’t pencil for your situation, we’ll say so.
Apex Reserve Group provides the engineering study. Tax filing decisions belong with your CPA or tax attorney — we work alongside them, not around them.