Your apartment building will never produce a dollar of qualified improvement property. Not on an $18,000 unit gut, not on a $2,000,000 interior repositioning, not ever. QIP is defined only for nonresidential real property, and your building is 27.5-year residential rental.
Start there, because it is the fact that most often breaks a value-add underwriting model, and it explains where a cost segregation apartment building study actually finds its money: in the appliances inside your units and the asphalt around them, not in the renovation bucket a retail landlord gets to use.
Key takeaways
- Residential rental property does not qualify for QIP, which changes how you budget and model a unit-turn program.
- Every unit turn is a partial asset disposition opportunity, and almost no owner claims it.
- Multifamily typically reclassifies 20-30% of depreciable basis, with garden-style properties at the top of that range and urban mid-rise towers at the bottom.
- Land improvements are usually the single largest bucket, often larger than everything inside the units combined.
- The deduction is worthless if you cannot use it. The §469 passive activity rules decide whether a multifamily loss offsets income this year or sits suspended.
Why the QIP Rule Costs You Money Every Turn
QIP is a 15-year, bonus-eligible class created for interior improvements to a building that is nonresidential real property, placed in service after the building was first placed in service. Read the definition and your 27.5-year asset is simply not in it. There is no election, no workaround, and no argument to be made.
The consequence lands on your renovation budget. When you spend $18,000 gutting a unit, a strip-center landlord doing identical work drops most of it into a 15-year bonus-eligible bucket. You cannot. Your dollars sort into three places instead:
- §1245 personal property — new cabinets, countertops, appliances, removable flooring, blinds, and decorative fixtures, all bonus-eligible on their own 5-year life.
- Deductible repairs under the tangible property regulations, where the work restores rather than betters the unit.
- 27.5-year building for everything left over.
That first bucket is often larger than sponsors assume, which is the good news. But a pro forma that modeled a 15-year life on the whole renovation package was built wrong, and the correction usually costs a point or two of levered return. Our qualified improvement property guide has the full definition and the exclusions.
Every Unit Turn Is a Disposition You Are Not Claiming
Here is the offsetting opportunity, and it is the one almost nobody books.
When you rip out a twelve-year-old kitchen, you did not just buy cabinets. You retired the old ones, and they still carry adjusted basis inside your building account. Treas. Reg. §1.168(i)-8 lets you elect to recognize a loss on the remaining basis of the replaced component.
Run that across forty turns a year and it compounds. It also stops you depreciating cabinets that are in a dumpster, and it reduces the §1250 recapture waiting for you at sale. The election is annual and generally irrevocable, made on a timely filed return for the year of disposition, so it has to be planned before the year closes rather than discovered afterward. See the partial asset disposition election for the basis methods.
The election also depends on something a study creates: asset-level detail with a traceable basis. If your fixed asset schedule holds one line called "Building," there is nothing to dispose of.
What an Engineer Prices Inside Your Units
Walk 96 units and you are pricing the same short list 96 times. That repetition makes multifamily engineering efficient and the results consistent.
The appliance package is the obvious one: ranges, refrigerators, dishwashers, microwaves, disposals, and in-unit washers and dryers, all 5-year property. Usually larger in dollars is the cabinetry and countertop package. Kitchen and bath cabinets, vanities, and countertops are removable millwork rather than structure, and across a hundred kitchens they add up fast. Then the finishes: carpet and luxury vinyl plank, window treatments, decorative light fixtures, island pendants, and ceiling fans.
One item owners consistently miss is dedicated electrical serving specific equipment, including the share of primary switchgear attributable to that load. The 2025 IRS Audit Techniques Guide addresses allocating switchgear based on electrical load, the kind of measurement that separates a defensible study from a spreadsheet estimate. Our catalog of 5-, 7-, and 15-year property covers the full list.
The amenity package, where multifamily beats office
Common areas are where a Class A property pulls ahead of a generic commercial building. Fitness equipment is straight personal property. So is the clubhouse and leasing office furniture package, and the pool equipment: pumps, filters, heaters, and chemical feed, all separable from the pool shell. Package lockers, now standard on every lease-up, are removable equipment, as are playground equipment, grills and outdoor kitchens, and the access control and camera systems at gates, mailrooms, and clubhouse doors.
No single item is large. Together, on a well-amenitized property, they routinely represent 3% to 6% of basis.
Worked Example: A 96-Unit Complex at $6.8M
Example: a 96-unit garden-style apartment complex acquired for $6,800,000 in March 2026 Land allocated at $1,100,000, leaving $5,700,000 of depreciable basis. Engineering study reclassifies 26%: 13% to 5-year in-unit and amenity property, 13% to 15-year site improvements.
| Asset class | Basis | Life and method | Year-one deduction |
|---|---|---|---|
| 5-year personal property | $741,000 | 5-yr 200% DB, 100% bonus | $741,000 |
| 15-year land improvements | $741,000 | 15-yr 150% DB, 100% bonus | $741,000 |
| 27.5-year building | $4,218,000 | 27.5-yr SL, mid-month | $121,436 |
| Total | $5,700,000 | $1,603,436 |
Without a study, the full $5,700,000 on 27.5 years produces about $164,103 in year one. The study adds roughly $1,439,000 of deduction, worth about $503,000 of deferred tax at a combined 35% rate.
Read that $503,000 as a deferral, not a windfall, and note that it only lands in 2026 for an owner who clears §469. A limited partner in this same deal, with no other passive income, watches the entire figure suspend. If you hold through a syndication or LP, the deduction flows out on the K-1s per the partnership agreement, and those allocation mechanics deserve attention before the study is ordered. See cost segregation in syndications and partnerships.
The Late Surprise: Your Parking Lot Outweighs Your Kitchens
Notice the shape of that table. The 15-year bucket matched the 5-year bucket dollar for dollar, and on many garden-style deals it beats it outright.
The reason is structural. A garden-style complex is a low-density use on a large parcel, and nearly everything outside the building footprint is a 15-year land improvement. Parking lots, drive aisles, and striping. Carports. Concrete curbing, sidewalks, and pads. Site lighting on poles, including conduit and bases. Perimeter fencing and automated entry gates. Landscaping and irrigation. Retaining walls. Site utilities and storm drainage from the point of connection. And the small items that get skipped: dog parks and pet stations, mail kiosks, monument signage, and bike racks.
On a suburban garden-style property this bucket alone commonly runs 10% to 16% of depreciable basis. On a downtown mid-rise with a structured garage and a 40-foot sidewalk, it might be 3%. Same asset class, very different answer, which is why the site plan tells you more about your result than the unit count does.
Where a Multifamily Study Stops Making Sense
When you cannot use the loss. This is the real gate, not the property. Apartment losses are passive under §469 unless you qualify as a real estate professional and materially participate, or you have other passive income to absorb them. A physician with W-2 income and one 20-unit building may generate a $400,000 paper loss that offsets nothing. Suspended losses are not lost, but a deduction used in 2033 is worth far less than one used in 2026. Read our passive activity loss primer first.
When the site is tiny. An urban mid-rise with no surface parking and no landscaping loses the largest bucket, and reclassification can fall to the mid-teens.
When you are selling in two or three years. The §1245 property you accelerate returns as ordinary income recapture at rates up to 37%, while building depreciation is capped at the 25% unrecaptured §1250 rate. On a short hold you may be converting 25% gain into 37% gain for a modest timing benefit. A planned §1031 exchange, or a step-up under §1014, changes that entirely.
Frequently Asked Questions
Does cost segregation work on a property I bought five years ago?
Yes. A look-back study catches up missed depreciation through a Form 3115 method change with a §481(a) adjustment, and a taxpayer-favorable adjustment is taken entirely in the year of change. No amended returns are required. Note that the bonus percentage is set by the original placed-in-service year, not by when the study is performed.
Do I need to track the appliances I replace every year?
You should be capturing them. Appliances are 5-year property regardless, so if your fixed asset schedule dumps unit-turn spending into the building account, you are depreciating a dishwasher over 27.5 years. A study establishes the asset detail that makes future turns easy to book correctly and makes disposition elections possible.
Are pools and pool decks land improvements or building?
The pool shell and deck are generally 15-year land improvements. The pool mechanical equipment, pumps, filters, heaters, and chemical feed systems, is typically 5-year personal property. The split is an engineering determination that should be documented in the study rather than assumed from a template.
Find Out in 24 Hours Whether a Study Pays for Itself
Not every property justifies a study, and we will tell you when yours doesn't. Send Precision Cost Segregation the address, purchase price, closing date, and your rough tax rate, and we will come back with a modeled reclassification range and an estimated first-year benefit at no cost.
This article is provided by Precision Cost Segregation for general educational purposes and does not constitute tax, legal, or accounting advice. Tax outcomes depend on your specific facts, your tax rate, your passive activity position, and your entity structure. Figures shown are illustrative. Consult your CPA or tax advisor before acting, and engage a qualified professional to perform any cost segregation study. Information is current as of publication.
This article is general information, not tax or legal advice. Depreciation outcomes depend on your facts, elections, and current law — consult your CPA before acting. © 2026 Precision Cost Segregation.