Depreciation is one of the best parts of owning rental real estate. Every year you claim a slice of the building's value as a deduction, and your tax bill drops. It feels like free money. It isn't, quite. The IRS keeps a tab, and when you sell, part of that tab comes due. It's called depreciation recapture, and a lot of investors get surprised by it.
Here is the short version. Depreciation lowers your property's tax basis, which is the number the IRS uses to figure your gain when you sell. The lower your basis, the bigger your gain. The part of your gain that comes from depreciation you already claimed gets taxed separately, under its own rules. A 1031 exchange can push that tax down the road. It does not make it go away.
How depreciation changes your basis
Say you bought a small retail building for $600,000. The land was worth $100,000 and the building $500,000. Land doesn't depreciate, so only the $500,000 building counts. Over the years you claim $150,000 in depreciation. Your adjusted basis is now $450,000: the $600,000 you paid, minus the $150,000 you deducted.
Now you sell for $800,000. Your total gain is $350,000, the sale price minus your $450,000 adjusted basis. Of that $350,000, the first $150,000 matches the depreciation you claimed. That slice is called unrecaptured section 1250 gain, and for most individual investors it's taxed at a maximum rate of 25 percent. The remaining $200,000 is regular long-term capital gain, taxed at the usual capital gains rates. Depreciation didn't vanish. It just moved the tax from the years you owned the building to the year you sold it.
What a 1031 exchange does with recapture
A successful 1031 exchange defers your whole gain, recapture included. You sell, your qualified intermediary holds the proceeds, and you buy replacement property of equal or greater value within the deadlines. No tax is due at closing, not on the capital gain and not on the recapture.
But the deferred gain doesn't evaporate. It rides along into your replacement property in the form of a lower basis. Your new property's basis starts from your old property's basis, not from what you paid for the new one. So the $150,000 of recapture from our example is still sitting there, baked into the numbers, waiting for the day you sell in a taxable transaction.
This is where investors trip up. They do two or three exchanges over twenty years, watch their portfolio grow, and assume the old depreciation is ancient history. It isn't. Each exchange carries the deferred gain forward. The tab gets longer, not shorter, and the eventual bill can be much bigger than the one from the first sale alone.
Two moments when recapture shows up early
First, a partial exchange. If you buy replacement property worth less than what you sold, or you pocket some cash, that leftover is called boot, and boot is taxable in the year of the exchange. Gain you recognize because of boot is generally treated as recapture first. So even a "mostly successful" exchange can hand you a recapture bill right away.
Second, your depreciation schedule doesn't fully reset. The basis you carried over from the old property keeps depreciating on the old property's remaining schedule, while only the extra money you put in gets a fresh schedule. Your CPA can run these numbers before you close, and that's worth doing. Guessing at your adjusted basis is how people get blindsided at tax time.
What to do before your next exchange
Get your depreciation schedule from your CPA before you list the property, not after you close. Know your adjusted basis and how much of your expected gain is recapture. If you're exchanging into a DST, the same mechanics apply: your deferred gain carries into the DST interest, and your basis doesn't reset just because the ownership form changed. And if you're weighing whether to keep exchanging or sell and pay the tax, run both scenarios with real numbers. Sometimes paying the tax now is the cleaner move. Sometimes deferring for another decade is the right call. Either way, you want the choice to be deliberate, not an accident you discover on your tax return.
One more thing worth knowing. If you hold property until death, your heirs generally receive a stepped-up basis, which can wipe out deferred gain, including recapture. That's an estate planning conversation, not a tax strategy you should count on without advice, but it explains why some longtime owners never sell at all.
Depreciation gave you a tax break every year you owned the building. Recapture is simply the other side of that deal. A 1031 exchange lets you postpone the reckoning, and that postponement is genuinely valuable. Just don't mistake a postponed bill for a forgiven one.
This article is educational only and is not tax or legal advice. Talk to your CPA or attorney about your specific situation before making an exchange decision.
