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Assisted living communities, senior apartments, memory care facilities and independent living campuses carry more separable components than almost any other property type. A fully engineered and accounted cost segregation study sorts the purchase price into 5-year and 7-year personal property, 15-year land improvements, and the building, which stays on 27.5 or 39 years depending on how the property is classified. For property acquired and placed in service after January 19, 2025, the shorter-lived components take 100 percent bonus depreciation in the first year.
The catch comes first. Before anyone asks what is in the building, the IRS asks what kind of building it is, and the answer sets the baseline. Then the passive activity rules decide whether the deduction reaches your return this year or waits for a sale.
Hector is hypothetical. He is a retired manufacturing executive in Columbia, Missouri, and in March 2025 he closed on a 48-unit assisted living community for $9,600,000: private apartments, a commercial kitchen and dining room, a small memory care wing, a salon, a therapy room, a nurse call system in every unit, a generator, a paved lot, a covered entry drive, courtyards and walking paths.
His CPA handed him a depreciation schedule with a single building line, everything but the land spread over decades. Hector read it the way he once read a bill of materials and asked whether the commercial kitchen, the nurse call system and the hallway carpet that wheelchairs roll over all day were going to last 27.5 years. That question is the whole idea behind cost segregation, and a study is the engineering work that puts the answer on paper.
Under Section 168(c), residential rental property is depreciated over 27.5 years and nonresidential real property over 39, both straight-line with the mid-month convention. Section 168(e)(2) defines residential rental property as a building where 80 percent or more of the gross rental income comes from dwelling units, and a unit used on a transient basis in a hotel-like establishment does not count. One building lands on one schedule; it is never split.
Senior housing sits across that line. An independent living community or senior apartment building where residents sign leases and stay for years looks like an apartment building. An assisted living community can look the same when residents have private units and the real estate is separate from the services. A skilled nursing facility, where care predominates and the unit is closer to a hospital bed than a home, is more often nonresidential. Facilities that mix levels of care or offer short respite stays can land either way.
No blog post can settle your category. The answer depends on your residency agreements, the length of stays, the services, how fees are billed, and the arrangement between owner and operator. The study never changes the classification of the shell, so build it on a classification your CPA has already reviewed and will defend. For the residential side of that line, see cost segregation for multifamily and apartment buildings.
A senior living community is closer to a small town under one roof than to a shell with tenants, and nearly every function that makes it a good place to live creates a component with its own tax life. The authority is Section 1245, Hospital Corporation of America v. Commissioner, 109 T.C. 21 (1997), and the six factors in Whiteco Industries v. Commissioner; the IRS lays out what a reliable study looks like in Publication 5653. The lists below are what an engineer evaluates; whether an item qualifies depends on how it is installed and used in your building.
Accessible, safe site design generates real cost: parking lots and drive aisles, the covered entry drive, curbing and sidewalks, walking paths, courtyards and patios, site lighting, fencing, retaining walls, storm drainage, irrigation, landscaping and signage. Without a study all of it sits on the building line.
The foundation, frame, roof, exterior walls, general-purpose HVAC, common plumbing and electrical, elevators, life safety systems that serve the whole building, and permanent interior walls stay with the structure. A credible study does not stretch to claim these; overreaching on the shell is the fastest way to turn a good study into a liability.
Land is never depreciable, and the allocation between land and building is the first number every study depends on. Support it with an appraisal, the assessor's ratio, or another reasonable method; an unsupported number erodes everything that follows.
Every figure below is illustrative. Hector paid $9,600,000. Assume a supportable allocation of 15 percent to land, or $1,440,000, leaving a depreciable basis of $8,160,000. Assume his CPA, after reviewing the residency agreements and the service structure, concluded the community is residential rental property on a 27.5-year schedule, and that it was placed in service in July 2025, when the license transfer cleared and the community could accept residents under Hector's ownership.
Without a study. The full $8,160,000 goes into the 27.5-year class. Under the IRS mid-month table, July carries a first-year rate of 1.667 percent, so first-year depreciation is $136,027. Every full year after that, $296,727.
With a study. The engineer reclassifies 28 percent of the depreciable basis, or $2,284,800: $1,224,000 as 5-year and 7-year property (kitchen equipment, the nurse call system, removable flooring, furnishings, low-voltage systems and dedicated connections) and $1,060,800 as 15-year land improvements (parking, drive, walks, courtyards, lighting, drainage and landscaping). The remaining $5,875,200 stays at 27.5 years.
Because Hector acquired the property after January 19, 2025, 100 percent bonus applies to the reclassified $2,284,800, with no proration for the month. Add $97,940 of regular depreciation on the remaining 27.5-year basis at the same 1.667 percent, and total first-year depreciation is $2,382,740, against $136,027 without the study. The incremental first-year deduction is $2,246,713. At a 37 percent federal rate, if Hector can use all of it in year one, that is $831,284 of federal tax that stays with him; at 24 percent, $539,211. Had his CPA concluded the building is nonresidential, the baseline would be 39 years and the incremental benefit would be similar, because the reclassified components move into the same 5-, 7- and 15-year classes either way.
Total depreciation over the life of the property is the same with or without a study; the study changes the timing, and the value is having the money now. The 28 percent is an illustration; be skeptical of any provider who quotes a percentage before reviewing your property.
Bonus applies to tangible property with a recovery period of 20 years or less: the 5-, 7- and 15-year components, never the structure. The One Big Beautiful Bill Act, signed July 4, 2025, restored a permanent 100 percent rate for property acquired and placed in service after January 19, 2025. The acquisition date controls, and in general that is the date of a written binding contract rather than the closing. A contract signed on or before January 19, 2025 keeps the older phase-down rate, 40 percent for 2025, even if closing came later. IRS Notice 2026-11 gives interim guidance on those dates; see what IRS Notice 2026-11 means for your acquisition date.
Used property qualifies when you had not used it before and bought from an unrelated party. Bonus is automatic; the election is to opt out by class. The placed-in-service date is the other date that matters: a community is placed in service when it is ready and available for its intended use, usually the day it can accept residents under your ownership, whether or not anyone has moved in. A closing in late December with a license transfer in January moves a seven-figure deduction to the next tax year.
A study creates a deduction. Whether it reduces your tax this year depends on how your activity is classified, and in senior housing that depends on whether one owner holds both the real estate and the operation, a property entity leases the building to a separate operator, or investors hold interests through a syndication. Each leads to a different answer.
Rental real estate is passive under Section 469 for most owners, and passive losses offset only passive income. A passive investor in a senior housing syndication with no other passive income will find a first-year study loss suspended and carried forward. The loss is preserved: it offsets future passive income, including the community's own, and releases in full when the interest is sold in a fully taxable transaction.
A taxpayer who qualifies under Section 469(c)(7), and who also materially participates in the community's activity, treats its losses as nonpassive. Status takes more than 750 hours in real property trades or businesses in which the taxpayer materially participates, and more than half of total working time; on a joint return one spouse must meet both tests alone. Hector, retired, might clear the tests if he runs the community himself and logs the hours; if he hands it to a third-party operator and visits monthly, he will not. See real estate professional status.
Some senior living operations provide significant personal services alongside housing: meals, housekeeping, personal care, activities. In some fact patterns the arrangement is an operating business rather than a rental activity, which takes real estate professional status out of the picture and puts the focus on material participation alone. Your CPA must answer that before anyone counts on an outcome.
If you own the real estate and lease it to an operating company in which you materially participate, the self-rental rules treat net rental income as nonpassive while a net rental loss stays passive, unless the building and the business are treated as one activity or grouped under Reg. 1.469-4(d)(1)(ii). That surprises owners who expected a depreciation loss to offset their own operating company's profit. The grouping and any change in structure are decisions for your CPA; see the self-rental trap.
Even a nonpassive loss faces more fences. Section 461(l) caps the net business loss a noncorporate taxpayer can use against wages and investment income in a year at $313,000 for a single filer and $626,000 on a joint return for 2025, adjusted annually; the excess carries forward as a net operating loss. Hector and his wife file jointly, so if his loss is nonpassive, $2,382,740 of depreciation against roughly $700,000 of net operating income leaves a loss of about $1,683,000, of which $626,000 offsets their other 2025 income and about $1,057,000 carries forward. See the excess business loss limit. Basis and at-risk rules also limit pass-through owners.
If you have owned a senior housing property for years on a single building line, a lookback study captures the depreciation you missed. Reclassifying components is a change in accounting method made on Form 3115 with your return, and the Section 481(a) adjustment, which is the depreciation the shorter lives would have produced less what you claimed, lands in full on the current return. No amended returns. The catch-up is computed at the bonus rate of the year the property was placed in service: 100 percent for 2022, 80 for 2023, 60 for 2024. Cost Seg America prepares the Section 481(a) computation and, for a separate fee, the Form 3115 itself; your CPA files it. Read how a lookback study recovers missed depreciation without amending returns.
Each renovation or expansion is analyzed like an acquisition, with its own placed-in-service date. When a major component is replaced, a partial asset disposition under Reg. 1.168(i)-8 writes off the remaining basis of the old one in the year it leaves, which only works if a component schedule says what that basis was. Interior improvements to a nonresidential building may be qualified improvement property, a 15-year class that takes bonus; residential buildings have no QIP, which is one more reason to settle the classification first.
Depreciation lowers your basis, and when you sell for more than your adjusted basis, part of the gain is attributable to depreciation. Depreciation on Section 1245 property, the 5-year and 7-year components, is recaptured as ordinary income up to the amount taken. Depreciation on the building and the 15-year land improvements is Section 1250: bonus taken beyond straight-line on the land improvements is ordinary, and the rest is unrecaptured Section 1250 gain taxed at a maximum of 25 percent. The net investment income tax may apply.
That is rarely a reason to skip the study. The code reduces your basis for depreciation you were allowed whether or not you claimed it, so skipping the study keeps the recapture and gives up the benefit. You had the use of the tax savings for years, a Section 1031 exchange can defer the gain, and the Section 1014 step-up at death eliminates it for heirs. Selling an operating community also means allocating the price among real estate, equipment and the business, and your depreciation history and sale allocation should agree. We cover the math in depreciation recapture after a cost segregation study.
The Audit Techniques Guide describes six approaches and prescribes none. Our team works only under the first two: detailed engineering from actual cost records where they exist, and engineering with documented estimates reconciled to the purchase price where they do not. On Hector's community that means the kitchen equipment listed piece by piece with its dedicated connections, the nurse call system traced to each unit, the carpet measured and separated from the slab, the paving by section and thickness, the courtyards and walks and lighting itemized from the site. On larger properties an in-house analyst does a proper inspection; otherwise the team does a live video walkthrough with you, or you follow a guided photo and video checklist and the team reviews every frame. Each item gets a class with a written reason on a component schedule the CPA imports into the fixed asset system and an examiner can trace line by line back to the $8,160,000. The report is signed by credentialed professionals, engineered in the United States, and defended for as long as you own the building, with no time limit, hour cap or additional fee: written responses and participation in examiner calls alongside your CPA. Our team has prepared and defended engineered studies since 2002, through more than 125 IRS examinations with zero losses and $0 returned. The estimated study applies a percentage to your price and leaves nothing to hand the examiner.
Skipping the classification question. Treating the building as 27.5-year or 39-year property because that is what the last preparer did is a mistake in either direction. Settle it with your CPA first.
Ordering a study and ignoring the passive rules. The study creates the deduction; Section 469 decides whether you can use it this year. Do both pieces of homework before you order.
Missing the self-rental problem. If you lease the building to your own operating company, the loss can get stuck. Plan the structure before you close.
Confusing the closing date with the placed-in-service date. A license transfer that slips past December 31 moves a seven-figure deduction to the next return.
Buying the estimated study. A thin report with no engineering behind it costs far more than the fee you saved if it falls apart in an examination. The deadline for either kind is the day you file the return.
Below $180,000 of depreciable basis after land, the fee eats the benefit; that can describe a small residential care home. If you plan to sell within two or three years, recapture outweighs the time value of the deduction. If you are a passive investor with no passive income and no plan to sell, the loss sits suspended and the study is a deduction waiting for a disposition. And if the real estate is leased to your own operating company and your CPA has not worked through the self-rental rules, order the planning before the study.
Yes. Commercial kitchens, safety and communication systems, furnishings and site improvements are examined as 5-, 7- and 15-year property. The building itself stays on 27.5 or 39 years depending on classification, and your CPA should settle that before the study.
It depends on the facts. Residential rental property needs at least 80 percent of gross rental income from dwelling units, and transient units do not count. Independent living and many assisted living communities with long-term residents in private units may qualify as residential; facilities that mainly provide medical care or short stays are more often nonresidential.
Yes. A lookback study with Form 3115 and a Section 481(a) adjustment claims the missed depreciation on the current return without amending prior returns, at the bonus rate of the year the property was placed in service.
Possibly. Under the self-rental rules, net rental income is nonpassive while net rental losses stay passive. Grouping elections and structure changes may help. Talk to your CPA before you order.
No. Investors who do not qualify use the deduction against passive income, shelter the community's own income, and carry the rest forward to a sale.
Cost segregation is a recognized method with its own IRS guide. What an examiner looks at is the support behind the numbers, and a component schedule that traces to the purchase price is the best protection.
Send Jim Dougherty and his team the closing statement, the land allocation, the unit count and square footage, a sentence about how the real estate and the operation are held, and whether anyone in the household is a real estate professional. You will have a free proposal in 24 hours showing what a fully engineered and accounted study would move, what it would cost, and which year-one result above is yours. The study takes 30 days, with rush available when your filing date is close. Call 1-888-365-5023 or email info@costsegamerica.com, and bring your CPA. The checklist of what to gather is in documents to gather before a study.
This article is educational and is not tax, legal or accounting advice; the example is hypothetical, thresholds are adjusted annually, and you should confirm your facts with your CPA before acting.
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