Rental property depreciation is one of the most powerful tax deductions available to landlords, yet it remains one of the most misunderstood. Every year, property owners leave thousands of dollars on the table because they either don’t claim depreciation or calculate it incorrectly.
This guide covers how the 27.5-year rule works, how to determine your cost basis, how to separate land value from building value, and what happens when you eventually sell. Whether you own a single rental or a growing portfolio, understanding depreciation is essential to maximizing your after-tax returns.
What Is Rental Property Depreciation?
The IRS recognizes that buildings wear out over time. Roofs age, HVAC systems degrade, and foundations settle. To account for this wear and tear, the tax code allows rental property owners to deduct a portion of the building’s cost each year as a non-cash expense.
Here is the key insight: depreciation is a paper deduction. You are not writing a check or spending money in the current year. You are simply deducting a portion of the original purchase price from your rental income, which reduces your taxable income without reducing your actual cash flow.
For many landlords, depreciation is the single largest deduction on their tax return. On a $300,000 property, depreciation alone can reduce your taxable rental income by nearly $9,000 per year. Over the life of the property, that adds up to the entire depreciable value of the building.
Depreciation applies to the building and its structural components only. You cannot depreciate the land the building sits on, because land does not wear out. We will cover how to separate land from building value in a later section.
How Does the 27.5-Year Rule Work?
Residential rental property is depreciated over 27.5 years using the straight-line method. This means you deduct an equal amount each year (with a slight adjustment in the first and last year due to the mid-month convention).
The calculation itself is straightforward:
Annual Depreciation = Depreciable Basis / 27.5
If your depreciable basis (the building portion of your cost basis) is $240,000, your annual depreciation deduction is:
$240,000 / 27.5 = $8,727.27 per year
A few important distinctions:
- Residential rental property: 27.5-year recovery period. This includes apartments, single-family rentals, duplexes, and any property where 80% or more of rental income comes from dwelling units.
- Commercial property: 39-year recovery period. This applies to office buildings, retail spaces, and warehouses.
- Straight-line method: The deduction is the same each year (except the first and last year). There is no accelerated depreciation for the building itself, though certain components may qualify for shorter recovery periods.
You begin depreciating a rental property when it is “placed in service,” meaning it is ready and available for rent. This is not necessarily the date you purchased it or the date a tenant moves in. If you buy a property on June 1 and it is ready to rent on July 15, your depreciation starts July 15.
You can use the depreciation calculator to quickly compute your annual deduction based on your purchase price and land value.
Determining Your Cost Basis
Your cost basis is the foundation of the depreciation calculation. It is not simply the purchase price. Your cost basis includes the purchase price plus certain closing costs and improvements made before placing the property in service.
Costs that are included in your basis:
- Purchase price
- Title and escrow fees
- Legal fees (attorney costs for closing)
- Recording fees
- Transfer taxes
- Survey costs
- Owner’s title insurance
Costs that are NOT included in your basis (they are deducted separately or not at all):
- Mortgage points (deducted separately as interest over the life of the loan)
- Prepaid property taxes (deducted as an operating expense)
- Prepaid insurance (deducted as an operating expense)
- Mortgage insurance premiums
Example: You purchase a rental property for $295,000. Your closing costs include $2,000 in title fees, $1,500 in legal fees, and $1,500 in recording fees and transfer taxes. Your total cost basis is:
$295,000 + $2,000 + $1,500 + $1,500 = $300,000
This $300,000 is the starting point. Next, you need to subtract the value of the land to arrive at your depreciable basis.
Separating Land Value from Building Value
Since land cannot be depreciated, you must allocate a portion of your cost basis to land and the remainder to the building. The IRS does not prescribe a single method for making this allocation, but there are several accepted approaches.
Property Tax Assessment Method (Most Common)
Look at your local property tax assessment, which typically breaks the assessed value into land and improvements (building). Use that ratio to allocate your cost basis.
Example: Your property tax assessment shows a total assessed value of $250,000, with $50,000 allocated to land and $200,000 to improvements. The land represents 20% of the total assessed value. Apply that percentage to your $300,000 cost basis:
- Land: $300,000 x 20% = $60,000 (not depreciable)
- Building: $300,000 x 80% = $240,000 (depreciable basis)
Appraisal Method
Hire a qualified appraiser to separately value the land and building. This is more expensive but may be worthwhile for high-value properties or when the tax assessment seems unreasonable.
Percentage Method
As a general guideline, land typically represents 15-25% of a property’s total value, depending on the location. Urban properties tend to have a higher land-to-value ratio, while rural properties tend to be lower. This method should be used with caution and ideally supported by comparable data.
Worked Example
Let’s put it all together with a complete example:
| Item | Amount |
|---|---|
| Purchase price | $295,000 |
| Closing costs (title, legal, recording) | $5,000 |
| Total cost basis | $300,000 |
| Land allocation (20%) | $60,000 |
| Depreciable basis | $240,000 |
| Annual depreciation ($240,000 / 27.5) | $8,727.27 |
Over 27.5 years, you will deduct the entire $240,000 depreciable basis from your rental income. At a 24% marginal tax rate, that saves you approximately $2,095 in taxes every year, or $57,600 over the life of the property.
The Mid-Month Convention
In the first year you place a rental property in service and in the year you dispose of it, you don’t get a full year of depreciation. Instead, the IRS requires you to use the mid-month convention: you treat the property as though it was placed in service (or disposed of) at the midpoint of that month.
If you place a property in service in March, you are treated as though you started on March 15. That gives you 9.5 months of depreciation for the first year (mid-March through December).
Here is the percentage of a full year’s depreciation you can claim based on the month the property is placed in service:
| Month Placed in Service | Months of Depreciation | First-Year Percentage |
|---|---|---|
| January | 11.5 | 95.83% |
| February | 10.5 | 87.50% |
| March | 9.5 | 79.17% |
| April | 8.5 | 70.83% |
| May | 7.5 | 62.50% |
| June | 6.5 | 54.17% |
| July | 5.5 | 45.83% |
| August | 4.5 | 37.50% |
| September | 3.5 | 29.17% |
| October | 2.5 | 20.83% |
| November | 1.5 | 12.50% |
| December | 0.5 | 4.17% |
Using our earlier example with a $240,000 depreciable basis placed in service in March:
First-year depreciation = $8,727.27 x 79.17% = $6,909.09
For every full year after the first, you deduct the standard $8,727.27. In the final year (year 28), you deduct only the remaining balance.
Where Depreciation Goes on Your Tax Return
Depreciation for rental property is reported on Schedule E (Supplemental Income and Loss), Line 18. This is the same form where you report rental income, mortgage interest, property taxes, repairs, insurance, and other operating expenses.
In the first year you claim depreciation on a property, you must also file Form 4562 (Depreciation and Amortization). This form provides the IRS with the details of your depreciable asset: the date placed in service, the cost basis, the recovery period, and the depreciation method. In subsequent years, you can generally carry forward the information without refiling it.
If you are looking for a detailed walkthrough of the entire Schedule E form, see our guide on how to fill out Schedule E.
Cost Segregation Studies
For most single-family and small multifamily rentals, depreciating the entire building over 27.5 years is sufficient. But for higher-value properties, a cost segregation study can significantly accelerate your depreciation deductions.
A cost segregation study is an engineering-based analysis that identifies components of your property that qualify for shorter depreciation periods:
- 5-year property: Appliances, carpeting, certain fixtures, and removable floor coverings
- 7-year property: Office furniture and equipment used for property management
- 15-year property: Landscaping, fencing, sidewalks, driveways, and parking areas
By reclassifying these components out of the 27.5-year category and into shorter recovery periods, you can front-load your depreciation deductions and reduce your tax liability in the early years of ownership.
Cost segregation studies typically cost $5,000 to $15,000 and are most cost-effective for properties valued at $500,000 or more.
Depreciation Recapture When You Sell
Here is the part many landlords overlook: when you sell a rental property, the IRS “recaptures” some or all of the depreciation you claimed. This is taxed under Section 1250 at a maximum rate of 25%, which is separate from (and often higher than) the long-term capital gains rate.
How it works: Suppose you purchased a property with a $240,000 depreciable basis and held it for 10 years, claiming $87,273 in total depreciation. When you sell, that $87,273 is subject to depreciation recapture tax at up to 25%.
Depreciation recapture tax = $87,273 x 25% = $21,818
Here is the critical detail: even if you did not claim depreciation, the IRS assumes you did. If you owned a rental property for 10 years and never took a depreciation deduction, the IRS will still calculate your adjusted basis as though you had. When you sell, you will owe recapture tax on the depreciation you were entitled to, whether or not you actually claimed it.
This is precisely why you should always claim depreciation. You will pay recapture tax either way, so failing to claim the annual deduction means you lose the benefit without avoiding the cost.
One strategy to defer recapture is a 1031 exchange, which allows you to roll the gain and deferred depreciation into a like-kind replacement property. A 1031 exchange has strict timelines and requirements, so work with a qualified intermediary.
Improvements vs. Repairs
Understanding the difference between improvements and repairs is essential for accurate depreciation calculations.
Improvements add value, extend the useful life, or adapt the property to a new use. They are added to your cost basis and depreciated over their recovery period. Examples include:
- A new roof
- Adding a room or bathroom
- Replacing the entire HVAC system
- New kitchen cabinets and countertops
- Rewiring the electrical system
- A new deck or patio
Repairs maintain the property in its current condition without adding value. They are expensed in full in the current tax year on Schedule E. Examples include:
- Fixing a leaky faucet
- Patching drywall
- Replacing a broken window
- Repainting a room
- Fixing a gutter
- Replacing a single appliance (in some cases)
The distinction is not always clear-cut. Replacing a single broken window is a repair, but replacing all the windows in the building is likely an improvement. When in doubt, apply the IRS “betterment, restoration, or adaptation” test: if the expense betters, restores, or adapts the property, it is an improvement. For each improvement, you begin a new 27.5-year depreciation schedule separate from the original building.
Common Depreciation Mistakes
Even experienced landlords make depreciation errors. Here are the most common ones to avoid:
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Not claiming depreciation at all. As discussed, the IRS assumes you claimed it whether you did or not. Skipping depreciation means you lose the tax benefit but still face recapture when you sell.
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Using the wrong recovery period. Residential rental property is 27.5 years, not 30 or 39 years. Using the wrong period means your annual deduction is incorrect, and you may trigger an IRS adjustment.
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Depreciating the land. Only the building portion of your cost basis is depreciable. Failing to allocate value to land results in an inflated depreciation deduction that the IRS can disallow.
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Not adjusting basis for improvements. When you make a capital improvement, it needs its own depreciation schedule. Simply expensing a $15,000 bathroom remodel as a repair is incorrect and may attract scrutiny.
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Forgetting about depreciation recapture. Many landlords are surprised by the recapture tax when they sell. Plan for it from the beginning, and explore 1031 exchange options if you intend to reinvest.
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Starting depreciation on the wrong date. Depreciation begins when the property is placed in service (ready and available for rent), not on the purchase date or the date a tenant signs a lease.
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Not tracking depreciation year by year. You need to know your accumulated depreciation to calculate your adjusted basis when you sell. Maintaining accurate records from day one saves headaches later.
Tracking Depreciation Across Your Portfolio
Managing depreciation for a single property is straightforward, but as your portfolio grows, tracking multiple depreciation schedules, improvement additions, and mid-month conventions for each property becomes a bookkeeping challenge.
RentFolio automatically tracks your property cost basis, calculates annual depreciation based on your placed-in-service date, and includes depreciation when generating Schedule E reports. When you add a capital improvement, it creates a new depreciation schedule and adjusts your deductions accordingly. You can explore the depreciation calculator to see how your properties’ depreciation breaks down, or export a Schedule E report at tax time with depreciation pre-populated.
Depreciation is not optional, and getting it right matters. Claim it every year, keep accurate records, and plan for recapture from the start. Your future self (and your accountant) will thank you.