Real estate

Why a fully depreciated rental is often worth more held than sold

Jul 2026 · 4 min read

You have owned a rental for twenty-five years. You have written off the building down to almost nothing, the mortgage is small or gone, and the property is worth far more than you paid. Selling looks like the obvious move. But selling during your lifetime can trigger a tax bill that mostly disappears if you hold the property instead and let it pass at your death.

The reason is a rule that quietly rewards holding: the basis step-up at death.

The two taxes you trigger by selling now

Sell a long-held rental and the gain splits into two layers, taxed differently. The depreciation you claimed over the years lowered your basis, and that piece comes back as unrecaptured §1250 gain, taxed at a maximum 25% rate. The rest, the appreciation above your original cost, is long-term capital gain at 0%, 15%, or 20%. High-income sellers add the 3.8% net investment income tax on top, because rental gain is investment income.

On a property you have fully depreciated, that first layer is large. It is the tax you were quietly deferring all those years, and a lifetime sale is where it finally comes due.

What death changes

When you die, whoever inherits the property gets a new basis equal to its fair market value on the date of death. That is the step-up, and it goes to your heirs, not to you during life. It resets the basis to today's value and typically eliminates most of the built-in gain for the person who inherits. The depreciation you took generally no longer comes back, and the appreciation is wiped clean. If they sell shortly after for roughly that value, the taxable gain is close to zero.

The example: a rental bought for $200,000, fully depreciated to a zero basis, now worth $700,000
Selling at that price makes the whole $700,000 a taxable gain: $200,000 of depreciation coming back plus $500,000 of appreciation.
Sell during your life for $700,000
Unrecaptured 1250, $200,000 at 25%$50,000
Appreciation, $500,000 at 20%$100,000
NIIT, 3.8% on the $700,000 gain$26,600
Total federal tax$176,600
Hold until death, heirs take the step-up
Heirs' basis resets to$700,000
Tax on a sale near that valueabout $0

That is the trade-off in one card. Selling now can cost real money that a hold-until-death plan avoids entirely for your heirs.

Where it goes wrong

Not everyone is planning to pass real estate on. If you do not have children, the hold-until-death logic still works, the step-up helps whoever you name, a partner, chosen family, or a trust, and it can make giving the property to charity at death especially efficient. But if your real goal is to turn the property into cash or into giving during your lifetime, holding for a step-up you will not use is the wrong target. A charitable remainder trust or a 1031 exchange may fit your actual plan better. The right answer depends on what you want the property to do for you, not on a default assumption about heirs.

What to check before you list

If you are holding a long-appreciated rental and weighing a sale, the Gnomon Diagnostic lays your depreciation, projected gain, and estate picture side by side so the decision is made on your whole situation, not just the sale price. Start yours at start.gnomonplan.com.

This is general tax information, not advice for your specific situation. Talk with us or your tax professional before acting on it.