Depreciation Recapture Explained for Landlords — Section 1250 Math

When you sell a rental, the depreciation you deducted over the years comes back as recapture: §1250 unrecaptured gain on the building portion at up to 25%, §1245 ordinary-rate recapture on personal property and cost-segregated 5/7/15-year buckets; the exception that costs landlords money is assuming you only owe recapture if you actually took the deductions — the IRS calculates recapture on depreciation "allowed or allowable," meaning you owe it even if you forgot to claim it.

Every dollar of depreciation you deducted on a rental is borrowed from a future tax bill. The bill comes due the year you sell. Most landlords expect to pay long-term capital gains on the appreciation; few model the depreciation recapture cleanly, and the surprise can be six figures on a single transaction.

Below: how §1250 and §1245 work, the worked math on a typical sale, and the three ways to defer or escape recapture (1031, installment sale, hold-until-death).

The rule explained

When you sell depreciable property at a gain, the IRS recharacterizes part of that gain — the part attributable to prior depreciation deductions — as "recapture" taxed at higher rates than long-term capital gains.

Two recapture regimes apply to real estate:

Section 1250 (Buildings). Applies to real property. For real estate held more than a year, recapture is limited to "additional depreciation" — historically the excess of accelerated depreciation over straight-line. Since residential rentals use straight-line MACRS, traditional §1250 recapture is usually $0. BUT there's a special category — unrecaptured §1250 gain — that taxes the depreciation portion of the gain at a maximum 25% federal rate (vs. typical 15-20% LTCG rates).

Section 1245 (Personal property and certain real property). Applies to tangible personal property (appliances, equipment, vehicles) and to property reclassified under cost segregation into 5-, 7-, and 15-year buckets. §1245 recapture is at ordinary income rates — up to 37% federal — on the full depreciation taken, not just the excess.

The split matters enormously. A landlord who used cost segregation to accelerate depreciation now faces ordinary-rate recapture on the reclassified buckets, not the friendly 25% §1250 rate. Cost seg always trades a smaller current-year tax bill for a larger future recapture bill, in addition to capital gain on the actual appreciation.

Who triggers recapture

Anyone who sells depreciable rental property at a gain. Specifically:

The key trap: converting a rental to a primary residence doesn't erase prior recapture. The §121 home sale exclusion ($250K single / $500K MFJ) explicitly does NOT shelter unrecaptured §1250 gain. Convert a long-depreciated rental to your home, live there 2 years, sell — you still owe recapture on every dollar of depreciation taken during the rental period.

How to calculate recapture

Step 1: Calculate realized gain.

Realized gain = (Sale price - Selling costs) - Adjusted basis

Adjusted basis = Original purchase price + Capitalized improvements - Accumulated depreciation

Step 2: Identify the depreciation components.

• Building (27.5-year or 39-year): all depreciation taken on this portion is "unrecaptured §1250 gain"
• 5-year property (cost-seg appliances, carpet): all depreciation = §1245 ordinary recapture
• 7-year property (cost-seg office equip): §1245
• 15-year property (cost-seg land improvements): §1245 for the bonus-depreciation portion; remainder follows §1250 rules but in practice most cost-seg packages put the whole bucket on §1245 treatment via bonus

Step 3: Apply tax rates.

• §1245 recapture: ordinary income rate (up to 37% federal + state)
• Unrecaptured §1250 gain: max 25% federal
• Remaining gain (true appreciation): LTCG rate (0%, 15%, or 20% federal)
• Net Investment Income Tax: additional 3.8% on the entire gain if MAGI > thresholds

Step 4: Report on Form 4797.

Form 4797 Part III handles depreciation recapture. The recharacterized gain flows to Schedule D and then to Form 1040.

Common errors

Assuming you skipped recapture by not taking depreciation. The IRS taxes "allowed or allowable" depreciation. If you owned a rental for 10 years and forgot to deduct depreciation, the IRS still treats you as having taken it for recapture purposes. You owe the recapture without having received the deduction. Fix: amend prior returns (within statute) or file Form 3115 for catch-up depreciation BEFORE selling.

Forgetting cost-seg recapture is ordinary, not 25%. Landlords who did cost segregation models in year one with a "25% recapture rate" assumption are off by 10+ points on the §1245 portion. Cost seg saves more now but costs more later.

Mishandling §121 + rental. The §121 exclusion shelters capital gain on a primary residence sale, but NOT the depreciation recapture from prior rental use. And under §121(b)(5), "non-qualified use" (rental years after 2008) reduces the §121 exclusion proportionally for the gain (not the recapture).

Forgetting partial dispositions. When you replace a major component (roof, HVAC), the partial disposition election lets you write off the remaining basis of the old component. Without the election, you keep depreciating both the old (now removed) and new component — and you owe recapture on the old one at sale anyway.

Missing recapture on installment sales. §1245 ordinary recapture must be recognized in full in the year of sale, even if you receive payments over multiple years. Only the capital gain portion installs. Many sellers blow this.

Edge cases

Mixed-use properties. Convert a duplex from 100% rental to 50% personal residence + 50% rental → sell years later: recapture applies pro-rata for the years and percentages of rental use. Track meticulously.

§121 conversion + 5-year wait. Under §121(b)(5), to fully exclude gain from a former rental converted to primary residence, you must own AND occupy as primary for the 2 of 5 years before sale AND clear additional non-qualified-use period reductions. Recapture is always owed regardless.

Foreclosure / short sale. Recapture still applies if there's a gain (which can happen even in a "short sale" if the canceled debt + adjusted basis math produces one). Cancellation of debt income is a separate issue.

REP losses and recapture. A real estate professional whose rental losses fully deducted against W-2 income for years still owes recapture at sale. The income-tax benefit was real, but it's borrowed.

Recapture after death. Heirs receive stepped-up basis to FMV at death. Accumulated depreciation resets to $0 for the heirs. The decedent's deferred recapture vanishes. This is the strongest tax-planning argument for "buy and hold until death."

Negative basis (§752 partnership debt). A partner whose basis goes negative through distributions can owe gain even with no actual sale proceeds; the gain may include recapture.

Examples with numbers

Example 1: Standard residential rental sale, no cost seg

Purchased: $300,000 ($60K land + $240K building) in 2010. Improvements: $25,000 in 2015 (new roof — capitalized). Sold: $500,000 in 2026 ($25K selling costs). Accumulated depreciation (16 years on building + 11 years on roof): ~$140K + ~$10K = $150,000

Adjusted basis: $300,000 + $25,000 - $150,000 = $175,000 Realized gain: $500,000 - $25,000 - $175,000 = $300,000

Recapture analysis:

• Unrecaptured §1250 gain: $150,000 (all building depreciation) → 25% federal cap
• Pure capital gain (true appreciation): $150,000 → 15-20% LTCG

Federal tax (single, taxable income $250K — top of 15% LTCG bracket):

• Recapture: $150,000 × 25% = $37,500
• LTCG: $150,000 × 15% = $22,500
• NIIT 3.8% on full $300K (assuming MAGI > $200K): $11,400
• Total federal: ~$71,400 plus state.

Without recapture analysis, a landlord might naively assume $300K × 15% = $45K. The actual bill is 50%+ higher because of recapture.

Example 2: Same property, with cost segregation

Same property, but you did a cost seg study in year one reclassifying $60,000 as 5-year property and $30,000 as 15-year land improvements. By year 16, the 5-year and 15-year buckets are fully depreciated.

Accumulated depreciation breakdown:

• Building (now $150K basis after cost seg): ~$87,000
• 5-year property (fully depreciated): $60,000
• 15-year property (fully depreciated): $30,000
• Roof: $10,000
• Total: $187,000 (vs $150K without cost seg)

Adjusted basis: $300,000 + $25,000 - $187,000 = $138,000 Realized gain: $500,000 - $25,000 - $138,000 = $337,000

Recapture analysis:

• §1245 ordinary recapture (5-year + 15-year): $90,000 at ordinary rates (assume 32%) = $28,800
• Unrecaptured §1250 (building + roof): $97,000 × 25% = $24,250
• Pure capital gain: $337,000 - $90,000 - $97,000 = $150,000 × 15% = $22,500
• NIIT 3.8% × $337K = $12,806
• Total federal: ~$88,400

Cost seg saved meaningfully more cash year-by-year (front-loaded ~$30K of extra deductions), but the sale-year bill is ~$17K higher. Net of time value of money, cost seg still typically wins for longer holds, but the gap narrows. For a short hold (3-5 years), recapture eats most of the cost seg benefit.

FAQ

Can I avoid recapture by doing a 1031? Yes — recapture is deferred (not eliminated) in a properly executed 1031. The accumulated depreciation and the deferred gain attach to the replacement property's basis tracking. You'll owe it eventually unless you 1031 again or die holding the property.

Does §121 exclusion cover recapture? No. The home sale exclusion explicitly excludes unrecaptured §1250 gain. Converting a rental to a primary residence reduces capital gain exposure on the appreciation but not on the rental-period depreciation.

What if I never took depreciation? The IRS calculates recapture on "allowed or allowable" depreciation — meaning you owe it whether or not you actually deducted it. Catch up via Form 3115 before selling so you at least get the deduction.

Is depreciation recapture subject to state tax? Yes. Most states tax recapture at their ordinary income rates (no special capital gain rate). California taxes the entire gain — recapture or not — at ordinary rates up to 13.3%. State recapture often dwarfs federal in high-tax states.

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This isn't tax advice. Consult a CPA familiar with US rental real estate.