Accelerated Depreciation Is a Loan From the IRS — until it's not

A short-term rental carries a tax feature that almost nothing else in a high earner's life offers. It's worth slowing down to see why, because the whole argument rests on it.

Most rental property is passive in the eyes of the IRS. Passive is a technical word here, and it does specific work: it means the losses the property throws off can only be used against other passive income. They cannot touch the income from your job. For someone earning a large salary, that wall is the whole problem — the real estate loses money on paper, but the paper loss has nothing to attach to.

A short-term rental can knock that wall down. If the average guest stays seven days or fewer, the tax code stops treating the property as a rental at all. Run it yourself — book the guests, manage the turnovers, make the calls, what the IRS calls material participation — and the property becomes non-passive. Now its losses are free to offset ordinary income, including a W-2 salary.

The next piece is where the money shows up, and it too is worth explaining plainly. Depreciation is the deduction the IRS gives you for a building wearing out over time. Normally it's spread across decades. A cost-segregation study speeds it up. It breaks the property into its faster-wearing parts — the appliances, the flooring, the driveways and landscaping — and 100% bonus depreciation, made permanent in 2025 for property bought after January 19, lets you deduct most of those parts in the first year instead of slowly. The result is a large loss on paper in year one, even while the property is earning real money.

The two work together. Non-passive treatment lets the loss reach your salary; accelerated depreciation makes the loss large enough to matter. On a $1.2 million property that first-year deduction runs into the hundreds of thousands, and for a buyer in the top bracket it can mean a six-figure cut in the tax bill, that year. That is the pitch, and the pitch is real.

The deduction isn't forgiveness. It's timing.

Here is the part the pitch leaves out.

The deduction is not money the IRS gives you. It is money the IRS lends you. Every dollar you depreciate lowers your basis in the property — basis being the tax value of what you own, the number your eventual gain is measured against. A lower basis means a larger taxable gain when you sell. So the day you sell, the government collects the deduction back. This is depreciation recapture, and it arrives in two pieces. The building itself is taxed as unrecaptured §1250 gain, at a rate up to 25%. The faster-wearing parts the cost-seg study carved out are recaptured as ordinary income, at your regular rate. Add the capital-gains tax on whatever the property gained in value, and the sale is where the bill you skipped in year one finally comes due.

Run the same property two ways

The size of that bill is easiest to see by holding everything else still and changing only the exit.

Take the aggressive depreciation, hold the property three years, and sell it outright for cash. The model returns about 18% a year. Now take the same depreciation, hold the same three years, but instead of cashing out, roll the proceeds into the next property through a 1031 exchange. About 30%. Same building, same rent, same deduction — the only thing that changed is how you left, and that change is worth roughly twelve points of annual return.

That twelve-point gap is the recapture. It's the bill, made visible.

The tell in the numbers

There is a signature in the numbers that gives the whole thing away. On the taxable sale, the annual return climbs the longer you hold — about 18% at three years, past 20% by year seven. That is backwards from how returns usually behave. A long hold normally thins the yearly return, as equity piles up and the early gains get averaged across more years. When the return improves with time instead, it means something heavy is sitting on the early years and lifting off the later ones. That something is the recapture bill. Hold long enough and the property's appreciation grows large enough to swallow it. A quick sale has nothing to swallow it with.

What everyone gets wrong about the 1031

Because the 1031 is the exit that looks like it dodges the tax, it's worth being exact about what it actually does.

A 1031 exchange lets you sell one property and move the proceeds into another without paying the tax at the moment of sale. It's easy to hear that as the escape. It isn't. The 1031 is the same loan the depreciation was. It defers the recapture and the capital gains; it does not forgive them. The bill rides along inside your basis, carried from the old property into the new one, still waiting for the day you finally sell for cash.

What the deferral buys you is not forgiveness. It's scale. Because you didn't stop to hand the IRS a check, the entire pre-tax proceeds go to work in the next property — a larger one than the after-tax remainder could have bought. Do it again and the one after that is larger still. The portfolio compounds on money that would otherwise have been skimmed off at every sale. So when the bill does land, it lands on a base the deferral helped you build. The tax is real, and by then it is large. But it is a tax on having grown far bigger than paying-as-you-go would ever have let you.

There is one way the loan turns into a gift, and it's the plainest move of all: never sell. Hold the portfolio and pass it to your heirs. Under today's law, they inherit at a stepped-up basis — the tax value resets to the property's market value on the day they receive it, and every dollar of deferred depreciation and gain you carried across all those years is wiped clean. The bill you deferred your whole life simply never comes due. Not for you, and not for them.

And you are not as locked in as “never sell” makes it sound. There are ways to reach the money tied up inside a 1031'd portfolio without selling and without triggering the bill. That's a piece for another day.

The rule

Accelerated depreciation and the 1031 are the same instrument used at two different moments. Both defer tax; neither erases it. Used together and used patiently, they let you grow on the government's money for as long as you keep going. Sell for cash at any point and you settle the account — on a bigger number than you started with, but you settle. Hold to the end and pass it on, and the account is closed for you.

The depreciation is worth taking either way. What it's worth depends on how you plan to leave.