What Depreciation Recapture Actually Costs When You Sell

I've written a lot on this blog about generating deductions. Cost segregation. Bonus depreciation. The short-term rental exception. Six-figure paper losses against W-2 income in year one.

Every one of those posts contains a version of the same sentence: this is a timing strategy, not permanent savings, although some exceptions apply. I say it because it's true and because I'd rather you hear it from me than find out at closing. But I've never actually shown you the back end of that math.

So here it is. This is what depreciation recapture costs, why the number surprises people, and what separates investors who plan for it.

The Basic Mechanic

Every dollar of depreciation you deduct reduces your basis in the property. Basis is what you're measured against when you sell. Lower basis, bigger gain.

Buy a property for $1M with $800K of depreciable basis. Take $300K of depreciation over your hold. Your adjusted basis is now $700K. Sell for $1.1M and your gain isn't $100K, it's $400K. The $300K of depreciation you already deducted comes back into the calculation.

That part most investors understand intuitively. What they don't understand is that the $400K doesn't all get taxed the same way.

Two Buckets, Two Rates

The gain splits into pieces, and the pieces are taxed at different rates. This is where cost segregation changes the picture.

§1250 property — the building. Depreciation taken on the 27.5-year or 39-year structure is "unrecaptured §1250 gain." It's taxed at a maximum federal rate of 25%. Not your ordinary rate, not the long-term capital gain rate, its own 25% ceiling.

§1245 property — everything the cost seg study broke out and accelerated. The appliances, flooring, cabinetry, fixtures, and other short-life components? Those are §1245 property. Depreciation on §1245 property is recaptured at ordinary income rates. For a high-income earner, that's 35% or 37% federal, plus state.

Remaining gain above original basis. Taxed at long-term capital gains rates: 0%, 15%, or 20% depending on income, plus the 3.8% net investment income tax where applicable.

Read that second bucket again. The cost segregation study that gave you a big year-one deduction created a pile of §1245 property. On the way out, that pile is taxed at your top ordinary rate.

The Part Nobody Mentions in the Cost Seg Pitch

Here's the asymmetry that matters.

When you took the deduction, you likely deducted it against ordinary income at your marginal rate. When you pay it back, you pay at ordinary rates too. So on the §1245 portion, the rates roughly wash. You deferred, you didn't save permanently, unless you did a 1031 exchange, which this blog assumes you didn't for the moment.

But the §1250 portion is where the strategy actually earns its keep. You deducted at 35% or 37%. You pay back at a maximum of 25%. That rate arbitrage is a real, permanent benefit with roughly 10 to 12 cents on every dollar of building depreciation.

Cost segregation's permanent benefit comes from the building depreciation, not from the accelerated §1245 pieces. The accelerated pieces give you cash flow timing and time-value-of-money benefit. They don't give you rate arbitrage. Anyone selling cost seg as pure savings (permanently) has likely never run an exit projection.

Example: The $1.25M STR, Five Years Later

High-income W-2 earner, top marginal federal bracket (37%), lives in a state with a 7% income tax.

Purchase, 2026:

• Purchase price: $1.25M

• Land: $250K

• Depreciable basis: $1M

• Cost seg identifies $350K of §1245 short-life property, 100% bonus depreciation in year one

• Remaining $650K in 39-year §1250 structure

Year-one deduction: roughly $367K. Applied against W-2 income as a non-passive loss under the STR exception, that's about $161K of combined federal and state tax savings. This is the number that gets pitched.

Five-year hold, sold in 2031 for $1.5M:

• §1245 depreciation taken: $350K (fully deducted in year one)

• §1250 depreciation taken over five years: roughly $83K ($650K ÷ 39 × 5)

• Total depreciation: $433K

• Adjusted basis: $1.25M − $433K = $817K

• Sale price: $1.5M

• Total gain: $683K

Now the split:

Add roughly $48K of state tax at 7% and the exit costs about $261,000.

The year-one deduction saved about $161K. The exit costs about $261K. The difference isn't a loss, the extra is tax on genuine appreciation you actually earned, which you'd owe on any profitable sale. But notice what happened to the deduction: it came back nearly dollar for dollar, at the same rate it went out.

Five years of using $161K of the government's money interest-free is worth something real. It just isn't the same thing as saving $161K, and those two ideas get conflated constantly.

What Changes the Math

Three levers actually move this number.

Hold period. The longer you hold, the more the time-value benefit of the deferral compounds, and the more of the eventual gain shifts toward capital-gain treatment rather than recapture. Five years is thin. 15 is meaningful.

Your bracket at exit. Recapture on §1245 property is taxed at your ordinary rate in the year of sale. Selling in a year when you've retired, taken a sabbatical, or generated large offsetting losses is worth a great deal. I've seen clients cut a recapture bill by more than a third purely on timing.

How you exit. A 1031 exchange defers all of it into the replacement property. Holding until death gives your heirs a step-up in basis under §1014 and eliminates the deferred gain entirely. Selling in a year with a large new acquisition and a fresh cost seg study, the approach I covered in the 1031 vs. 1031 lite post — can offset it with new deductions.

Bottom Line

Depreciation recapture isn't a penalty and it isn't a trap. It's the other half of a transaction you already agreed to. The deduction was real. The bill is also real.

Run both halves before you buy. The good news is that the exit is far more controllable than most people assume, but only if you start thinking about it in year one instead of the week you list the property.

If you own real estate with significant accumulated depreciation and you don't know what your exit costs, or you're evaluating a cost seg study and nobody has shown you the back end, book a discovery call. I work with high-income earners across all 50 states who use real estate to reduce their tax burden.