Rental Property Depreciation: How It Works and Why It Matters

Depreciation is the single most powerful tax benefit available to rental property owners. Full stop. It lets you deduct the cost of the building over time, a paper expense that reduces your taxable income without a single dollar leaving your pocket. A property generating $12,000 per year in net rental income with $10,000 in annual depreciation produces only $2,000 of taxable income, even though you collected the full $12,000 in cash.

And yet depreciation is the deduction landlords most often get wrong. Wrong basis, forgotten improvements, skipped deductions, no idea what happens at sale. I have seen all of it. This guide covers every piece of rental property depreciation so you can take the full deduction with confidence.

The basics: how depreciation works

The IRS lets you deduct the cost of a rental building over its "useful life." For residential rental property, that is 27.5 years. Commercial property gets 39 years. The method is straight-line, same deduction every year, no front-loading by default.

The formula is simple:

Annual depreciation = (Cost basis, Land value) / 27.5

You can only depreciate the building, not the land. Land doesn't wear out, so it carries no depreciable basis. Most tax professionals allocate 15 to 25% of the purchase price to land, though the actual split depends on your market and property type. You can use the county assessor's building-to-land ratio, an independent appraisal, or a reasonable estimate backed by local comps.

A worked example

• Purchase price: $350,000
• Closing costs added to basis: $8,000 (title insurance, recording fees, transfer taxes)
• Total cost basis: $358,000
• Land value (20%): $71,600
• Depreciable basis: $286,400
• Annual depreciation: $286,400 / 27.5 = $10,415 per year

That's $10,415 per year in deductions for 27.5 years, $286,400 in total. If you're sitting in the 24% federal bracket, depreciation alone saves you about $2,500 a year in federal income tax. That is real money, and most landlords leave it on the table.

When depreciation starts and stops

Depreciation begins when the property is placed in service, meaning it's ready and available for rent, whether or not you've found a tenant yet. Buy a property March 15, start marketing it April 1, and depreciation starts April 1. Not March 15.

In the first year, the IRS applies a mid-month convention: you get half a month of depreciation for whichever month the property is placed in service. So if that happens in April, you get 8.5 months in year one, half of April, then May through December.

Depreciation stops when you sell, convert the property to personal use, or reach the end of the 27.5-year schedule.

What adds to your depreciable basis

Your depreciable basis isn't just the purchase price. Several costs get added on top:

• Capital improvements: New roof, HVAC system, kitchen remodel, added square footage, new flooring, new windows, each one starts its own 27.5-year depreciation schedule from the date placed in service.
• Certain closing costs: Title insurance, recording fees, transfer taxes, and survey costs are added to basis. Prepaid interest and property taxes at closing get deducted separately.
• Legal fees tied to acquisition: Attorney fees for closing go into basis, not the expense column.

Each improvement creates a separate depreciation asset. Replace the roof in year 5 for $18,000 and that roof starts its own 27.5-year clock, you don't fold it into the original building basis.

Cost segregation: accelerating your depreciation

Standard depreciation spreads the building cost evenly over 27.5 years. Cost segregation front-loads it. A cost segregation study is an engineering-based analysis that identifies building components qualifying for shorter depreciation schedules:

• 5-year property: Appliances, carpet, decorative fixtures, window treatments
• 7-year property: Office furniture and equipment (for a home office)
• 15-year property: Landscaping, sidewalks, parking areas, fences, driveways
• 27.5-year property: The structural shell and its permanent components

On a $400,000 property, a cost segregation study might reclassify $80,000 to $120,000 of the building into these shorter-lived categories. Instead of depreciating $80,000 over 27.5 years ($2,909/year), you're depreciating it over 5 to 15 years, which works out to $5,333 to $16,000 per year in the early years. Is that worth a $5,000 to $15,000 study fee? For most properties above $500,000, the math says yes.

Studies typically run $5,000 to $15,000 and make sense for properties above $500,000 in value. The study fee itself is deductible as a professional expense.

Bonus depreciation

Under the Tax Cuts and Jobs Act, bonus depreciation lets you deduct a percentage of qualifying short-lived assets in the year they are placed in service, rather than spreading them over their full useful life. The percentages have been stepping down year by year:

• 2022: 100% bonus depreciation
• 2023: 80%
• 2024: 60%
• 2025: 40%
• 2026: 20%
• 2027+: 0% (unless Congress extends it)

Bonus depreciation applies to assets identified through cost segregation, 5, 7, and 15-year property. In 2025 (the tax year you'll file in 2026), you can deduct 40% of qualifying short-lived assets immediately. Pair that with a cost segregation study and you can generate substantial first-year deductions on a single acquisition.

Depreciation recapture: what happens when you sell

Here's the part nobody loves talking about. When you sell a rental property, the IRS recaptures the depreciation you claimed, taxed at up to 25%, which is higher than the long-term capital gains rate of 15 to 20% most investors face.

Own a property for 10 years, claim $100,000 in total depreciation, and you owe up to $25,000 in recapture tax at sale, on top of whatever capital gains tax applies to appreciation. So what does that mean practically? It means your tax strategy at acquisition affects your tax bill a decade later.

Avoiding recapture with a 1031 exchange

A 1031 exchange lets you defer both capital gains and depreciation recapture by rolling sale proceeds into a like-kind property. The depreciation basis carries over to the replacement property, and no tax event gets triggered at the sale. Investors use this to trade up to larger properties over time while keeping the tax bill permanently deferred.

The rules are strict. You have 45 days to identify replacement properties and 180 days to close. A qualified intermediary must hold the funds throughout, you can't touch the money. The replacement property must be of equal or greater value. But used correctly, 1031 exchanges let you defer recapture indefinitely, sometimes until death, when the stepped-up basis can eliminate it entirely.

Common depreciation mistakes

• Not claiming depreciation at all: Some landlords skip it to avoid recapture at sale. As I just explained, recapture applies regardless, take the deductions every year.
• Wrong land-to-building ratio: Overallocating to land shrinks your annual deduction. Use the county assessor's ratio or get an appraisal for a number you can actually defend.
• Forgetting to depreciate improvements: Every capital improvement starts its own depreciation schedule. A $20,000 renovation adds $727 per year in deductions, most landlords never see that money.
• Starting from the purchase date instead of the placed-in-service date: Buy in January but don't make it available to rent until March, and depreciation starts in March, not January.
• Depreciating land: Land is never depreciable. Using the full purchase price as your basis overstates the deduction and creates real audit exposure.

How SealedFolio handles depreciation automatically

Honestly, this is one of the main reasons I built SealedFolio. Enter your property's purchase price, land value, acquisition date, and any improvements with their costs and dates, and the app builds the correct depreciation schedule, applies the mid-month convention, tracks multiple assets per property, and puts the right number on the right Schedule E line at tax time.

Add a new roof, an HVAC replacement, or an appliance package and SealedFolio creates a separate depreciation asset with its own schedule automatically. Nothing gets missed. And all of it runs locally on your device, no data sent to any server, ever.