Real Estate Depreciation: The Tax Deduction Every Investor Needs to Understand
Real estate depreciation lets rental owners deduct the building's cost over 27.5 years (39 for commercial) with no cash outlay. This guide explains how depreciable basis is built, why land does not depreciate, how the mid-month convention sets year one, and what recapture costs at sale.
Real Estate Depreciation: The Tax Deduction Every Investor Needs to Understand
Real estate depreciation is the only meaningful line in a rental property's tax return that costs you nothing in cash. Every year you hold the property, the tax code lets you deduct a slice of the building's cost against your rental income, including in years when the property's market value went up. On a $300,000 purchase with a 20% land allocation, that is $8,727 a year of deduction you never wrote a check for.
Most investors know the deduction exists. Far fewer can state their own depreciable basis, or price what the IRS takes back at sale. This guide covers the machine itself: the recovery periods, how basis gets built and split, when the clock starts, and how recapture works.
This is general information, not tax advice. Confirm every number against your own facts with a CPA.
What Is Real Estate Depreciation?
Real estate depreciation is a non-cash tax deduction that lets a rental property owner recover the cost of the building over a fixed recovery period set by the tax code: 27.5 years for residential rental property and 39 years for most commercial property. Only the improvements depreciate. Land never does.
The logic is that a building is a wasting asset: roofs, framing and mechanicals all have finite lives, so the tax code treats the purchase as a cost you consume over time rather than an expense you take in year one.
That treatment holds regardless of what the market does. Your property can appreciate every year of the hold and you still take the full deduction, because depreciation tracks a statutory schedule, not market value.
The practical effect is that depreciation shelters cash flow you actually received. A property that produced real spendable cash can report a much smaller taxable profit, or a paper loss, once the deduction is applied. Whether you can use that loss this year depends on limits covered in our rental property depreciation guide.
The Recovery Periods: 27.5 Years and 39 Years
Residential rental property is depreciated straight-line over 27.5 years. Nonresidential real property, meaning most commercial assets, runs straight-line over 39 years. Both sit under MACRS, the Modified Accelerated Cost Recovery System, and both use the mid-month convention in the first and last year.
| Asset | Recovery period | Method | First-year convention |
|---|---|---|---|
| Residential rental building | 27.5 years | Straight-line | Mid-month |
| Nonresidential real property | 39 years | Straight-line | Mid-month |
| Land | Not depreciable | None | None |
| Land improvements and personal property components | Shorter periods, set by class | Varies by class | Varies by class |
"Straight-line" means the deduction is the same in year two as in year twenty: no declining balance, no acceleration on the building itself. The formula is as plain as it looks:
Annual depreciation = depreciable basis ÷ 27.5 for residential, or ÷ 39 for commercial.
Classification turns on use, not shape. A single-family house, a duplex and a 40-unit apartment building all sit on 27.5 years when they produce residential rental income. A $1,000,000 commercial building yields $25,641 a year, less per dollar of basis than residential.
How to Establish Your Depreciable Basis
Basis is where most investors get their own numbers wrong, and everything else depends on it.
Step 1: Start with your cost basis, not your loan amount.
Cost basis is the purchase price plus capitalized acquisition costs: title fees, recording fees, transfer taxes and the owner's title policy. Your mortgage is irrelevant. A $300,000 property bought with $60,000 down still has a $300,000 cost basis, which is why the deduction is worth the same to a financed buyer as to a cash buyer.
Step 2: Split the cost basis between land and improvements.
Land does not depreciate, so it comes out before you divide. The split is set at acquisition and drives every year of deduction that follows.
Step 3: Divide the improvement portion by the recovery period.
Take a $300,000 residential purchase with a 20% land allocation. Land is $60,000 and is not depreciable. The depreciable basis is $240,000, and $240,000 ÷ 27.5 = $8,727 per year for the life of the schedule.
That number changes the after-tax return on the deal. At a 24% marginal rate, an $8,727 deduction is roughly $2,094 of tax not paid, whether or not cash flow was strong that year.
How Investors Split Land From Improvements
Land does not wear out, so no part of the price you paid for the dirt will ever produce a deduction. That makes the allocation one of the most consequential decisions at closing, and one the IRS expects you to support. Three methods are common, in descending order of how well they hold up.
County assessment ratios. The assessor publishes a land value and an improvement value. Take the ratio, not the dollar amounts, and apply it to your purchase price. An assessor showing $280,000 total with $56,000 of land gives the 20% land ratio used in the example above.
A formal appraisal. The strongest documentation, worth the cost on larger acquisitions or where the assessor's split looks obviously off.
Insurance replacement cost. The weakest of the three, because replacement cost and tax basis do not measure the same thing. Treat it as a cross-check.
What matters is a ratio you can defend years later. A 20% land allocation on a $300,000 purchase produces $8,727 a year. A 35% allocation produces $7,091. Over a ten-year hold that is more than $16,000 of deductions, decided by one line at closing.
When the Clock Starts: Placed in Service and the Mid-Month Convention
Depreciation starts when the property is placed in service, meaning ready and available to rent. Not the closing date, and not the day a tenant signs.
The distinction matters on any property you rehab after buying. A house bought in January and listed for rent in April is placed in service in April, and rehab costs incurred before that date get added to basis rather than deducted as repairs. That is why a BRRRR project and a turnkey buy produce very different year-one tax pictures at the same price.
Real property also uses the mid-month convention: whatever month you place the property in service, the tax code treats it as mid-month. An April placement gets 8.5 months of depreciation in year one, not 9 and not 12.
Run it on the $240,000 depreciable basis. The full-year deduction is $8,727, so year one is $8,727 x 8.5 ÷ 12 = $6,182. The MACRS table gets there directly: the residential first-year factor for a fourth-month placement is 2.576%, and $240,000 x 2.576% = $6,182.
What Happens to Your Basis Over the Hold
Every dollar of depreciation you take reduces your adjusted basis. This is the part investors most often miss, and the whole reason recapture exists.
Start at $300,000 of cost basis. Ten full years at $8,727 is $87,270 claimed, leaving an adjusted basis of $212,730. Nothing about the property changed, but your tax cost in it dropped by $87,270.
Capital improvements run the other way. A $20,000 roof is not a repair and is not deducted in the year you pay for it. It is added to basis and depreciated on its own 27.5-year schedule, adding $727 a year on top of the original $8,727. Repairs and maintenance are deducted in the year incurred and never touch basis.
Keeping those categories separate for the whole hold is ordinary record-keeping that gets expensive if it was never done. Gain at sale is computed off adjusted basis, so every improvement you cannot document is gain you pay tax on twice.
Depreciation Recapture: Why Depreciation Is a Deferral, Not a Gift
When you sell, the depreciation you claimed comes back into the calculation. The slice of gain attributable to depreciation on real property is unrecaptured Section 1250 gain, taxed at a maximum rate of 25% and separately from the rest of your capital gain.
Continue the example. You sell for $400,000 after ten full years, adjusted basis $212,730, no capital improvements, selling costs ignored to keep the arithmetic visible.
| Component | Amount | Treatment |
|---|---|---|
| Sale price | $400,000 | |
| Adjusted basis | $212,730 | Cost basis of $300,000 less $87,270 of depreciation |
| Total gain | $187,270 | |
| Unrecaptured Section 1250 gain | $87,270 | Maximum 25% rate, so up to $21,818 |
| Remaining long-term capital gain | $100,000 | Long-term capital gains rates |
Two points matter here. The $87,270 is taxed once, not twice: it is carved out of the total gain, not added to it. And 25% is a ceiling, not a flat rate, since the unrecaptured portion is taxed at the lower of 25% or your ordinary rate. The remaining $100,000 falls under ordinary long-term capital gains tax rules on real estate, and you can size that half of the bill with a capital gains tax calculator.
So depreciation is a timing benefit, not free money. You deducted $87,270 at your ordinary marginal rate over ten years and paid back a maximum of 25% at the end, keeping the use of that cash in between. Favorable arbitrage, but not elimination.
Three mechanics are worth knowing, all three CPA conversations. A 1031 exchange can defer both the capital gain and the recapture into a replacement property. Heirs receive a stepped-up basis, which is why long holds change the math entirely. And personal property components separated out by a cost segregation study, appliances and carpet for example, are Section 1245 property and recapture as ordinary income rather than at the 25% ceiling.
Underwriting the Deduction Before You Buy, and Keeping the Records You Will Need
Two practical consequences follow, and both land before tax season.
The first is that depreciation changes which deals clear your bar. A property with thin pre-tax cash flow can beat a stronger-looking one once an $8,727 annual deduction is in the model, because the comparison that decides your return is after tax. Your depreciation assumption, meaning your land allocation and projected improvements, belongs in the model alongside your rental property ROI and rent assumptions, not six months after closing.
The second is that the records recapture depends on have to be captured while you own the property. Purchase price, capitalized closing costs, placed-in-service date, land allocation and every capital improvement are lines your CPA needs, and none can be reconstructed from a bank statement a decade later.
ProPilot covers both sides. The Deal Calculator gives you the cash flow, cap rate and ROI picture before you commit, so you can test a deal against your tax assumption. Portfolio Management holds the acquisition and improvement history once you own the property, the record your CPA and your accounting software both draw on. ProPilot does not compute depreciation schedules and does not file anything: that stays with your CPA.
Price the deal with the deduction in it, before you make the offer. Try it free for 7 days.
FAQ
How much can you depreciate on a rental property each year?
Divide depreciable basis, meaning cost basis minus the land allocation, by 27.5 for residential rental property. A $300,000 purchase with a 20% land allocation gives $240,000 of basis and $8,727 a year. Commercial divides by 39, and year one is prorated under the mid-month convention.
Is rental property depreciation calculated on the purchase price?
No. It is calculated on depreciable basis: purchase price plus capitalized acquisition costs, minus the value allocated to land. Most investors use the county assessor's land-to-improvement ratio applied to their purchase price, or an appraisal that separates site value. Set the allocation at acquisition with your CPA.
Can I skip depreciation so I do not owe recapture later?
No, and skipping it is the worst of both outcomes. Unrecaptured Section 1250 gain is computed on depreciation allowed or allowable, so recapture is calculated on the deduction you were entitled to take whether or not you took it. You lose the deduction and still owe at sale.
What happens to depreciation when you sell a rental property?
The depreciation-driven portion of your gain becomes unrecaptured Section 1250 gain, taxed at a maximum 25% and separately from the balance of the gain. On $87,270 of claimed depreciation that is up to $21,818. A 1031 exchange can defer it, and a step-up in basis at death removes it.
Do non-US investors get depreciation on US rental property?
The recovery periods attach to the property, so US rental real estate is depreciated on the same 27.5-year and 39-year schedules regardless of where the owner lives. How the deduction flows through to a non-US owner's return, and what gets filed, is a separate question for a CPA who handles cross-border filings.
The Bottom Line
Depreciation is the most reliable tax advantage in rental real estate and the one most investors hold without understanding. The mechanics are not complicated: separate land from improvements, divide the improvements by 27.5 years for residential or 39 for commercial, start the clock when the property is ready to rent, and let the mid-month convention shorten year one.
Three numbers are worth carrying. On a $300,000 purchase with a 20% land allocation, the annual deduction is $8,727. Ten full years is $87,270, dropping adjusted basis to $212,730. At sale that same $87,270 returns as unrecaptured Section 1250 gain at a maximum 25%, which is why this is a deferral worth having rather than a gift.
If you already own, the work is documentation: confirm your land allocation and placed-in-service date, and keep capital improvements separate from repairs while you can still prove which was which. If you are still buying, put the deduction in the model before you make the offer. The deal that wins on after-tax return is often not the one that wins on cash flow.
Run your next deal with the after-tax math in it, and keep the basis records you will need at sale. Try ProPilot free for 7 days.