Real Estate Depreciation as a Tax Benefit

The IRS allows owners of rental and commercial property to deduct a portion of the building’s cost each year as a non-cash expense called depreciation, sheltering rental income from tax for decades even if the property appreciates in value. The price is depreciation recapture: when you sell, the IRS taxes you on the cumulative deductions taken, at rates as high as 25%, recovering the tax benefit granted during ownership.

Why real estate is depreciable

Buildings—unlike land—wear out. Walls crack, roofs leak, systems fail. The IRS permits a property owner to deduct this gradual loss of value against taxable income, even though the owner hasn’t spent cash that year. This non-cash deduction is a cornerstone of real estate tax strategy.

Land, however, is not depreciable. It doesn’t wear out. Improvements on the land—the building structure, fixtures, appliances, parking lot—are depreciable. When you buy a property, the purchase price must be split between land and building. If a property costs $500,000 and the county assessor values land at $150,000, the building basis is $350,000.

Straight-line depreciation on residential rental property

The IRS assumes residential rental buildings last 27.5 years. Your annual depreciation deduction is the building basis divided by 27.5.

Example: A rental house purchased for $400,000, with land valued at $100,000. The building basis is $300,000. Annual depreciation: $300,000 ÷ 27.5 = $10,909 per year.

Over 27.5 years, you deduct the entire $300,000 cost, reducing taxable income by $10,909 every year, even if rents rise and the property appreciates. If annual rental income is $40,000 and operating expenses (mortgage interest, repairs, insurance, taxes) are $25,000, your taxable income before depreciation is $15,000. After the $10,909 depreciation deduction, taxable income falls to $4,091, cutting your tax bill substantially.

Once the 27.5 years elapse, depreciation stops and the entire basis is deemed recovered.

Commercial and industrial property

Non-residential commercial buildings (office, retail, industrial warehouses) depreciate over 39 years. The math is the same: basis divided by useful life equals annual deduction. For a $2,000,000 office building with land worth $400,000, the building basis is $1,600,000. Annual depreciation: $1,600,000 ÷ 39 = $41,026.

Cost-segregation studies can accelerate depreciation by breaking the building into separate components—roof, HVAC, interior walls, parking lot—each with its own (shorter) useful life. A roof may depreciate over 15 years; personal property (furniture, equipment) over 5–7 years. A qualified engineer reclassifies portions of the building’s basis into these shorter buckets, front-loading deductions into early years. The catch: cost-segregation requires a professional study (costing $5,000–$25,000 depending on property size) and more complex tax reporting, but it can reduce taxable income by 30–50% in year one.

The tax shelter at work

A landlord buying a $1,000,000 multifamily building with $250,000 of owner equity and a $750,000 mortgage illustrates depreciation’s power. In the first year:

The owner reports a loss of $7,273, even though the property generated $80,000 in cash rent and the owner’s equity is appreciating. This “paper loss” shelters other income—wages, investment gains—dollar-for-dollar. If the owner is in the 35% marginal tax bracket, the $7,273 loss saves $2,545 in taxes.

Over 27.5 years, the cumulative tax shelter can exceed the owner’s original down payment, making a modest investment in equity highly profitable when combined with property appreciation and mortgage paydown.

Depreciation recapture on sale

When you sell the property, the accumulated depreciation deductions are recaptured. If you deducted $150,000 in total depreciation over 10 years and sell the property for a $200,000 gain, the IRS taxes:

• The $150,000 depreciation recapture at 25% (in 2025–2026), or ordinary income rates if higher, yielding a $37,500 tax.
• The remaining $50,000 of gain ($200,000 total gain minus $150,000 depreciation) as long-term capital gain taxed at 15% or 20%, depending on income.

Depreciation recapture is a form of ordinary income taxation, even though it arises from a capital asset sale. It is one of the few scenarios where a real estate profit is not taxed at preferential long-term capital gains rates.

The timing matters. If you sell after a short hold, cumulative depreciation is small and recapture tax is low. If you sell after 27.5 years on residential property, the entire basis has been deducted and recapture is at its maximum. However, the long-term capital gain portion benefits from lower capital gains rates (15% or 20% federal vs. 25% recapture).

Strategic implications

Depreciation is a tax deferral tool, not a permanent escape. You reduce tax during ownership but pay a higher rate when you sell. This trade-off favors long-term holders and properties that appreciate faster than depreciation accumulates.

Example: A $1,000,000 property with $800,000 building basis depreciates $29,091 annually. After 15 years, cumulative deductions are $436,364. If the property appreciates to $1,300,000 and you sell, the $300,000 appreciation is taxed at capital gains rates (15–20%), but the $436,364 recapture is taxed at 25%. If the property appreciates to $2,000,000, the $1,000,000 total gain includes $436,364 recaptured at 25% and $563,636 taxed as capital gain at 15–20%, blunting the recapture bite.

Investors can also defer sale entirely via a like-kind exchange (Section 1031), rolling the sale proceeds into another qualifying property and postponing depreciation recapture indefinitely, although this strategy has narrowed in scope since 2018.

Passive loss limitations and phase-outs

The IRS limits deductions of “passive losses” (real estate losses if you’re not a professional real estate dealer) to $25,000 per year, with phase-outs if your modified adjusted gross income exceeds $100,000. High-income investors may not be able to use all depreciation deductions in the year they accrue. Unused losses carry forward and may be deducted in later years or against gains on sale.

Real estate professionals (those who materially participate in real estate operations) are exempt from passive loss caps and can deduct unlimited depreciation losses against other income, making professional status or entity structure a meaningful planning consideration.

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