Real Estate Depreciation: A Complete Guide for Investors

How the IRS lets you recover the cost of income-producing real estate over time — and how to maximize the benefit.

Depreciation is one of the most powerful tax advantages available to real estate investors. Unlike most business expenses — which are deducted in the year they are incurred — depreciation spreads the cost of a building across its useful life, generating annual tax deductions that reduce taxable income without requiring any cash outlay. Understanding how depreciation works, how to maximize it, and how it interacts with property sales and exchanges is essential knowledge for any serious real estate investor.

What Is Depreciation?

Depreciation is the IRS's mechanism for allowing taxpayers to recover the cost of income-producing property over the period the property is expected to be used in the business. For rental real estate, this recovery period is defined by the IRS based on the property type. The deduction reflects the gradual wear and tear, deterioration, and obsolescence of the building structure — even though the building may actually appreciate in market value during the same period.

The key insight: depreciation is a non-cash deduction. You do not pay cash to the IRS for the depreciation amount each year — it simply reduces your reported taxable income on paper, lowering your tax bill without affecting your actual bank balance. A rental property that generates $18,000 in annual rental income and $10,000 in annual depreciation produces a taxable income of only $8,000 — even if $12,000 in cash flows into your account after operating expenses.

Residential vs. Commercial Depreciation Schedules

The recovery period — the number of years over which you depreciate a property — depends on whether it is residential or commercial:

• Residential rental property: 27.5 years (IRS Recovery Period for Residential Rental Property, IRC Section 168)
• Commercial property: 39 years (IRS Recovery Period for Nonresidential Real Property, IRC Section 168)

The 39-year schedule applies to buildings used for commercial purposes — office buildings, retail spaces, warehouses, and industrial facilities. The longer recovery period means the annual depreciation deduction is smaller relative to the building cost, compared to residential property. A $3.9 million commercial building depreciates at exactly $100,000 per year ($3,900,000 ÷ 39). The same $3.9 million residential building depreciates at $141,818 per year ($3,900,000 ÷ 27.5).

Both schedules begin in the month the property is placed in service — meaning when it becomes ready and available to rent. A property completed in January depreciates for the full year. A property completed in December depreciates for only one month in that first year.

Section 1250 vs. Section 1245 Property

Two code sections govern how different types of property are depreciated:

Section 1245 property includes personal property — tangible assets that are not real property — such as appliances, equipment, vehicles, and furniture used in a rental. Section 1245 allows the deduction to be "recaptured" (clawed back) when the property is sold, to the extent of prior deductions taken. If you claimed $15,000 in depreciation on rental appliances over five years and then sold them for $5,000, the $10,000 difference between the sale price and the adjusted basis may be recaptured as ordinary income.

Section 1250 property covers real property — buildings and structural components. Under Section 1250, the depreciation taken on a building is partially recaptured upon sale as ordinary income if the property is sold at a gain, but only to the extent of "additional depreciation" — depreciation taken in excess of what straight-line depreciation would have been. For properties depreciated using primarily accelerated methods (such as MACRS), this recapture can be significant. However, for most investors using straight-line or slower methods, recapture exposure is limited.

Calculating Depreciation: A Worked Example

You purchase a rental house for $300,000 — $50,000 allocated to land and $250,000 to the building. You cannot depreciate land (land is not subject to wear and tear or depletion). The annual depreciation deduction on the building is:

$250,000 ÷ 27.5 years = $9,091 per year

Over 27.5 years, you will deduct the full $250,000 building cost — $9,091 per year — regardless of what the property is worth on the market. At year 10, your adjusted basis in the building is $159,090 ($250,000 minus 10 years of depreciation at $9,091 per year), even if the property is now worth $400,000 on the open market.

The land allocation at purchase — documented by a county assessor's ratio, a broker's opinion, or a professional appraisal — is critical. Depreciating land is one of the most common audit triggers for rental property owners. The IRS expects a reasonable land-to-building allocation that reflects market reality.

Cost Segregation Studies: Accelerating Depreciation

A cost segregation study is a detailed engineering analysis that identifies individual building components and reclassifies them into shorter IRS-approved recovery periods than the building's standard schedule. The goal is to front-load depreciation deductions into the early years of ownership, when the time value of money makes accelerated deductions most valuable.

Typical reclassifications in a cost segregation study:

• 5-year property: Carpeting, appliances, some HVAC components, decorative fixtures
• 7-year property: Equipment, furniture, some electrical systems, plumbing fixtures
• 15-year property: paved surfaces, landscaping, certain site improvements
• 27.5-year property: The primary building structure

For a newly purchased rental property with a total cost of $400,000 (land $60,000, building $340,000), a cost segregation study might identify $68,000 as 5-year property, $51,000 as 7-year property, and $34,000 as 15-year property — in addition to the $340,000 building at 27.5 years. This front-loads deductions significantly in years 1 through 7 compared to the standard all-27.5 approach.

Cost segregation studies can be applied to properties that have already been placed in service — creating a "catch-up" depreciation deduction in the year the study is completed. The cost of the study itself is deductible. Studies are particularly valuable for commercial properties and larger residential portfolios, where the tax savings from accelerated depreciation far exceed the study cost.

Depreciation Recapture Upon Sale

When you sell a rental property at a gain, the depreciation you claimed is "recaptured" — meaning the IRS collects tax on the amount of deductions you previously received. The recapture rate is 25% on the lesser of: (a) the depreciation taken, or (b) the total gain on the sale.

Example: You buy a rental property for $250,000 (building only), claim $90,000 in depreciation over 10 years, then sell the property for $300,000. Your adjusted basis is $160,000 ($250,000 minus $90,000), so your taxable gain is $140,000. Of that $140,000 gain, the $90,000 of depreciation is subject to 25% recapture — a potential tax of $22,500 if you are in that bracket. The remaining $50,000 of gain qualifies as long-term capital gains (at 15% or 20% depending on income).

Proper record-keeping of all depreciation taken is essential, because the recapture calculation requires knowing exactly how much depreciation was claimed. Missing depreciation records can result in an incorrect recapture calculation and potential penalties.

How 1031 Exchanges Interact with Depreciation

A 1031 exchange defers — but does not eliminate — depreciation recapture. When you exchange into a replacement property, the deferred gain carries with it the depreciation recapture exposure. The recapture tax is not forgiven; it is postponed until you eventually sell the replacement property without doing another exchange.

More importantly, when you do a 1031 exchange, the adjusted basis of the relinquished property carries over to the replacement property. This means the depreciation you have been claiming continues to reduce your basis in the replacement property. You cannot "reset" depreciation through a 1031 exchange — you are stepping into the shoes of the previous property's basis and depreciation history.

However, a cost segregation study done on the replacement property after acquisition is legitimate — you can conduct a new study on property received in a 1031 exchange and accelerate depreciation going forward, even though the exchange itself does not create new depreciation.

Depreciation by Property Type

Conclusion

Depreciation is the backbone of real estate tax strategy. It reduces taxable income without cash outlay, creates suspended losses that can offset future gains, and — through cost segregation — can be accelerated to maximize deductions in the highest-value years. The key rules: exclude land from your depreciation basis, document your land-to-building allocation, maintain meticulous records of all depreciation taken, and plan for recapture exposure when selling. When used strategically alongside 1031 exchanges, depreciation becomes one of the most powerful compounding tools available to long-term real estate investors.

For more on how depreciation fits into a broader tax strategy, see our Rental Property Tax Guide and our 1031 Exchange Basics.