Capital Improvements on Rental Property: Depreciation, Safe Harbors, Recapture

Capital improvements on rental property have to be added to your property’s basis and written off through depreciation over many years, while ordinary repairs are deducted in full the year you pay for them. Painting between tenants is a repair. A new roof is an improvement. The IRS treats the two very differently, and misclassifying a job either overstates your deduction now or forfeits deductions you were entitled to take.

What Counts as a Capital Improvement

A repair keeps the property in normal working condition without meaningfully changing its value or lifespan: a leaky faucet, a patched driveway crack, a broken window pane. A capital improvement goes further. It materially increases the property’s capacity or quality, adapts it to a different use, or restores a major component. Replacing an entire roof, gutting and rebuilding a kitchen, installing central air where none existed, or converting a garage into a rentable apartment all qualify.¹

For the borderline cases, the IRS uses the BAR test. If the work results in a betterment, an adaptation, or a restoration, you have to capitalize the cost.²

Betterment fixes a pre-existing defect or materially increases capacity, efficiency, or quality. A high-efficiency HVAC system with significantly more cooling capacity than the old unit is a betterment.
Adaptation changes the property’s function. Converting a residential unit into commercial office space, or turning a storage area into a bathroom, is an adaptation.
Restoration replaces a major component or returns the property to like-new condition after deterioration. Replacing the entire roof structure or all the windows in a building falls here.

A detail that drives most close calls: the BAR test is applied separately to the building structure and to each major building system, not to the building as a whole. The IRS identifies eight building systems that must each be analyzed independently: HVAC, plumbing, electrical, fire protection and alarm, gas distribution, elevator, escalator, and security.²

Replacing a single water heater is a repair to the plumbing system. Replacing all the plumbing throughout the building is a restoration of that system and has to be capitalized. The same logic applies across every system.

Safe Harbors That Let You Deduct Instead of Capitalize

The IRS offers three safe harbors that let you sidestep the BAR analysis entirely for qualifying expenses. Each is an annual election you make on your tax return.

De Minimis Safe Harbor

If an individual item or invoice falls below a dollar threshold, you can deduct it right away regardless of whether the work would otherwise count as an improvement. Taxpayers with an applicable financial statement can expense items costing $5,000 or less per invoice or per item. Taxpayers without one, which includes most individual landlords, can expense items up to $2,500 per invoice or per item.² The $2,500 figure took effect for tax years beginning on or after January 1, 2016, up from $500.³

Small Taxpayer Safe Harbor

This one is built for landlords with smaller buildings. It lets you deduct repair, maintenance, and improvement costs up to $10,000 per building in a single year, provided your average annual gross receipts don’t exceed $10 million, the building’s unadjusted basis is $1 million or less, and the total you spend on improvements doesn’t exceed the lesser of 2% of the building’s unadjusted basis or $10,000.⁴

Routine Maintenance Safe Harbor

Recurring upkeep that you reasonably expect to perform more than once during a building’s first ten years of service qualifies as routine maintenance and can be deducted immediately. This covers inspection, cleaning, testing, and replacing worn parts with comparable replacements. It can even apply to work that would otherwise count as a restoration, as long as it’s recurring maintenance you expected to perform at that frequency.² The routine maintenance safe harbor does not apply to betterments. If the work upgrades the property beyond its original condition, you capitalize it no matter how often you do it.

How Long You Depreciate Each Type of Improvement

Once a cost gets capitalized, you recover it through straight-line depreciation over a recovery period that depends on what the improvement is.

Residential rental building and structural improvements: 27.5 years. A new roof, a kitchen renovation, or a bathroom addition on a rental house or apartment building all follow this timeline.¹
Nonresidential (commercial) real property: 39 years for the structure and structural improvements.⁵
Land improvements: 15 years for fences, driveways, sidewalks, and depreciable landscaping.⁵
Appliances, carpeting, and furniture used in residential rental: 5 years.¹
Office furniture and fixtures: 7 years.⁵

Each improvement gets its own depreciation schedule, separate from the original building. A $20,000 roof replacement placed in service in June 2026 begins a new 27.5-year schedule from that date, independent of when you bought the building. Component-by-component tracking matters later, when you replace or sell any of those improvements.

Bonus Depreciation and the Residential Rental Limit

The One, Big, Beautiful Bill permanently reinstated 100% bonus depreciation for qualified property acquired after January 19, 2025.⁶ Bonus depreciation lets you deduct the full cost of eligible improvements in the year they’re placed in service rather than spreading deductions over decades. There’s a catch that trips up residential landlords: bonus depreciation only applies to property with a recovery period of 20 years or less.

That rules out the building structure and structural improvements, which sit at 27.5 years. What qualifies are the shorter-lived components: appliances and carpeting at 5 years, office furniture at 7, and fences and driveways at 15. A cost segregation study can carve a larger renovation into its shorter-lived pieces so a meaningful share of the spend qualifies for the immediate deduction.

Qualified Improvement Property for Commercial Rentals

Commercial landlords get a separate break. Qualified improvement property (QIP) covers interior improvements made to a nonresidential building after it’s placed in service, excluding enlargements, elevators, escalators, and work on the internal structural framework. QIP carries a 15-year recovery period and is eligible for 100% bonus depreciation, a dramatic shift from the 39-year default for commercial building improvements. QIP does not apply to residential rental buildings. Interior improvements to the structure of an apartment building or rental house depreciate over 27.5 years with no QIP shortcut.

One related boundary worth knowing: Section 179 expensing is generally unavailable to individual landlords of residential rental property, because the IRS treats that activity as production of income rather than an active trade or business. Commercial rental owners who actively operate the rental as a business may qualify on certain improvements.

Writing Off the Old Component When You Replace It

When a new improvement replaces an old one, say a new roof over an old roof, you can elect to recognize a loss on the old component’s remaining undepreciated basis. Without this partial disposition election, the old roof’s basis stays on your books and keeps depreciating next to the new roof. You end up depreciating an asset that no longer exists.⁷

You make the election by reporting the gain or loss from the disposed component on your timely filed return for the year the replacement happens. No separate form is required. You do need to identify the disposed component, determine its original placed-in-service date, calculate its adjusted basis at disposal, and reduce the basis of the original asset accordingly. The disposed component and its replacement must be the same type of property, at the same location, with the same recovery period.⁷

The election is easy to miss and worth real money. If you tore off a roof with $8,000 of undepreciated basis, you can deduct that $8,000 as a loss in the year of the replacement rather than letting it trickle out over the remaining depreciation period.

Depreciation Recapture When You Sell

Every dollar of depreciation you claim on a capital improvement reduces your adjusted basis. When you sell, the IRS recaptures that depreciation at a rate of up to 25%, on top of any capital gains tax on the rest of the profit.⁸

Buy a rental for $200,000 (excluding land), put $30,000 of capital improvements into it, and claim $50,000 of total depreciation along the way. Your adjusted basis is $180,000. Sell for $280,000 and your total gain is $100,000. Of that, $50,000 is unrecaptured Section 1250 gain taxed at up to 25%; the remaining $50,000 is taxed at your long-term capital gains rate.

Recapture applies whether you actually claimed the deductions or not. The IRS calculates it based on depreciation “allowed or allowable.” Skipping depreciation in prior years doesn’t save you anything at sale. It just means you gave up deductions you were entitled to.

When Depreciation Starts, and the Paperwork That Backs It Up

Depreciation doesn’t start when you pay the contractor or when the work wraps up. It starts when the improvement is placed in service, meaning it’s ready and available for use in the rental activity.⁵ A new furnace in an occupied rental is placed in service the day it’s operational. A major renovation on a vacant property you’re preparing to rent is placed in service when you first make the property available to tenants.

Documentation is where most landlords either leave money on the table or hand the IRS an easy argument. Keep invoices and receipts that describe the scope of work and tie each cost to a specific property and component. When a single contractor project includes both repairs and improvements, the invoice has to break out the costs. If it doesn’t, the IRS will often capitalize the whole thing, and the burden is on you to justify deducting any part immediately.¹

Maintain a depreciation schedule tracking every capital improvement by description, cost, placed-in-service date, and recovery period. You’ll need it to calculate adjusted basis at sale and to support any partial disposition election down the road.

One more wrinkle worth planning around: depreciation from improvements flows through as a rental deduction and is subject to passive activity loss rules. For individual landlords who aren’t real estate professionals, rental losses generally can’t offset wages or investment income, though an exception allows up to $25,000 of losses against non-passive income if you actively participate and your modified AGI is $100,000 or less, phasing out at $150,000.⁹ Losses you can’t use carry forward and release when you sell the property in a fully taxable transaction.¹⁰

Fixing a Misclassification From a Prior Year

If you expensed an improvement that should have been capitalized, or missed depreciation you were entitled to claim, the fix is IRS Form 3115, Application for Change in Accounting Method. You don’t amend prior-year returns. The form calculates a Section 481(a) adjustment that captures the cumulative effect of the error and applies it going forward.¹¹

For most rental situations this is an automatic change, which means no advance IRS approval and no user fee. Attach the original form to your timely filed return for the year of the change and send a signed copy to the IRS National Office. A negative adjustment (you owe less tax because you underclaimed depreciation) is taken in full in the year of change. A positive adjustment (you overclaimed) is spread over four years.¹¹

This matters more than most landlords realize. Because recapture is based on depreciation “allowed or allowable,” you’ll pay recapture at sale on deductions you could have taken even if you never actually took them. Filing Form 3115 to catch up on missed depreciation costs nothing and recovers years of lost deductions in a single tax year.

1
Internal Revenue Service. Publication 527 (2025), Residential Rental Property
2
Internal Revenue Service. Tangible Property Final Regulations – Frequently Asked Questions
3
Internal Revenue Service. Increase in De Minimis Safe Harbor Limit for Taxpayers Without an Applicable Financial Statement Notice 2015-82
4
eCFR. 26 CFR 1.263(a)-3
5
Internal Revenue Service. Publication 946 (2025), How To Depreciate Property
6
Internal Revenue Service. Treasury, IRS Issue Guidance on the Additional First Year Depreciation Deduction Amended as Part of the One, Big, Beautiful Bill
7
Internal Revenue Service. Examining a Taxpayer Electing a Partial Disposition of a Building
8
Internal Revenue Service. Topic No. 409, Capital Gains and Losses
9
Internal Revenue Service. Instructions for Form 8582 (2025)
10
Internal Revenue Service. Publication 925, Passive Activity and At-Risk Rules (2025)
11
Internal Revenue Service. Instructions for Form 3115 Application for Change in Accounting Method