1031 Exchange Basics: How to Defer Taxes When You Sell a Rental

When you sell an investment property at a gain, the tax bill can be brutal: federal capital gains, depreciation recapture up to 25 percent, the 3.8 percent net investment income tax, and state tax on top. A 1031 exchange lets you defer all of it by rolling the proceeds into another investment property.

Here is how it works and what to watch for.

The core idea

Section 1031 of the tax code lets you swap one investment property for another of like kind and defer the gain, as long as you follow the rules. The tax is deferred, not erased. It comes due only when you eventually sell without doing another exchange. Many investors keep exchanging up into larger properties for decades and never pay the gain.

You can estimate how much a specific sale could defer with the 1031 exchange calculator.

The two deadlines that trip people up

From the day you close on the property you sell, two clocks start at the same time:

There are no extensions except in certain federally declared disasters. Miss either deadline and the exchange fails, so line up candidates before you sell.

You must use a Qualified Intermediary

You cannot touch the sale proceeds. A Qualified Intermediary holds the money between the sale and the purchase. If you take possession of the funds, even briefly, the exchange is disqualified. Because the industry is not federally regulated, choosing a QI with strong fund security matters. Our Qualified Intermediary directory lists national QIs and explains how to pick one.

Watch out for boot

To defer the entire gain, you generally need to buy equal or greater value and reinvest all your equity. Any cash you pocket or debt you do not replace is called boot, and it is taxable now even inside an exchange. Trading down creates a partial tax bill.

Why recapture makes 1031 so valuable

If you have used cost segregation or years of regular depreciation, you have a large recapture exposure baked into your basis. A 1031 exchange defers that recapture along with the capital gain, which is often the single biggest reason to exchange rather than sell.

Bottom line

A 1031 exchange is the cleanest way to keep your equity working instead of handing a third of your gain to the IRS. Estimate the deferral with the tax tools, identify a Qualified Intermediary early, and calendar the 45 and 180-day deadlines the day you close.