1031 Exchange 2026: How to Defer Capital Gains Tax When You Sell Investment Property

A 1031 exchange, named for Section 1031 of the U.S. tax code, lets you sell investment or business real estate and reinvest the proceeds in similar property while deferring, not eliminating, the capital gains tax. You must identify replacement property within 45 days, close within 180 days, and never take personal control of the proceeds.

For plain-language explainers on taxes and investing, see the Problem Solved channel on YouTube.

Key Facts

• A 1031 exchange defers capital gains tax; it does not erase it.
• You have 45 calendar days to identify replacement property and 180 calendar days to close.
• Since 2018, only real property qualifies; stocks, crypto, and other personal property do not.
• A qualified intermediary must hold the proceeds; if you touch the money, the exchange fails.
• The deferred gain carries into the replacement property through its basis.

What Is a 1031 Exchange?

A 1031 exchange, also called a like-kind exchange, is a tax-deferral strategy for real estate held for investment or business use. Like-kind means the properties are of the same nature or character, not that they are identical. You can exchange an apartment building for farmland, a rental house for a small office building, or one strip of commercial land for another, as long as both properties are real estate held for investment or business.

The key idea is continuity: because your money stays invested in similar property, the tax code lets you postpone the tax bill instead of paying it at the sale. Your basis, which is roughly your original cost plus improvements minus depreciation, carries over into the replacement property, adjusted for any cash or debt differences. When you eventually sell without exchanging, the deferred gain is taxed then.

The Two Deadlines: 45 Days and 180 Days

Both deadlines run from the day you sell the relinquished property, the property you are giving up, and both are counted in calendar days, not business days. Within 45 days, you must identify the replacement property in a signed written notice delivered to the qualified intermediary or another permitted party. Within 180 days, you must close on at least one of the identified properties.

The 180-day deadline has a trap: if your tax return for the year of the sale is due before the 180 days run out, the exchange period can end on the return due date unless you file an extension. Investors who sell late in the year should file the extension rather than risk losing the exchange to a paperwork deadline.

There are almost no extensions for these deadlines. The IRS has granted relief only in rare disaster situations announced by the agency. In ordinary circumstances, a missed deadline ends the exchange, and the gain becomes taxable. That is why experienced investors identify backup properties and start the search before the sale closes.

The Identification Rules: 3-Property, 200%, and 95%

The identification rules limit how many properties you can name. Under the 3-property rule, you may identify up to three properties of any value. This is the simplest and most common route, and it fits most exchanges.

Under the 200% rule, you may identify any number of properties if their combined fair market value is no more than 200% of the value of the property you sold. This route helps investors who want to split one large property into several smaller ones. Under the 95% rule, if you identify more than the other rules allow, you must actually acquire at least 95% of the total value you identified, which is hard to do in practice.

The Qualified Intermediary Rule: Never Touch the Money

A qualified intermediary, often called an accommodator or exchange facilitator, is an independent party who holds the sale proceeds between the two closings. The rule is absolute: if you receive the proceeds, even briefly, the IRS treats the transaction as a taxable sale, not an exchange. This is called constructive receipt, and it destroys the deferral.

The intermediary must be independent. It cannot be your agent, your broker, your lawyer, your accountant, or a close relative; the tax rules bar related parties and recent advisers from serving in this role. You sign an exchange agreement with the intermediary before the sale closes, and the intermediary receives the funds directly from the closing.

Intermediary fees vary by provider, so get the fee schedule in writing before you sign, and ask how the funds are held. The intermediary’s job is paperwork and custody, not investment advice, so you still need your own tax and legal advisers.

What Counts as Boot? The Part That Gets Taxed

Boot is the part of an exchange that is not like-kind property: cash you receive, debt relief, or personal property added to the deal. Boot is taxable in the year of the exchange, but only up to the amount of your realized gain. The rest of the gain stays deferred.

Here is a worked example. Suppose you sell a rental property and realize a $200,000 gain. In a qualifying exchange you buy replacement property of equal value and receive no cash. The whole $200,000 gain is deferred. But if you receive $20,000 of cash boot in the same exchange, up to $20,000 of the gain is taxable now, because the boot is taxed to the extent of your realized gain, and the remaining $180,000 stays deferred.

Debt matters too. If the loan on the property you buy is smaller than the loan on the property you sold, the difference counts as boot unless you add cash to make up for it. Many failed exchanges come from this debt-replacement rule, so run the numbers with your adviser before you close.

What Qualifies, and What Does Not

Since the Tax Cuts and Jobs Act took effect in 2018, only real property qualifies for a 1031 exchange. The property must be held for investment or business use: rental homes, apartment buildings, farmland, offices, retail space, and industrial property all qualify. Your primary residence does not, and neither does property you hold mainly for quick resale.

One flexible option is a Delaware Statutory Trust, or DST. Under IRS guidance, an interest in a qualifying DST counts as real property for exchange purposes, which lets investors exchange into professionally managed property without managing it themselves. DST interests are still real estate investments with their own risks, including illiquidity, so they deserve the same due diligence as any property purchase.

A related strategy is the step-up in basis at death. If you hold exchanged property until death, your heirs generally receive it with a basis stepped up to its market value, which can permanently eliminate the deferred gain. This is why some long-term holders say they will swap until they drop. The rule is real, but it depends on the tax law in force at the time, so treat it as a planning factor, not a promise. For a broader view of how property fits a portfolio, see How to Invest in Real Estate 2026, and for how death affects taxes, see Estate Tax 2026.

Is a 1031 Exchange Right for You?

A 1031 exchange makes the most sense when you want to stay invested in real estate but change what you own: moving from an older rental to a newer one, from active management to passive ownership, or from one market to another. It also makes sense when the deferred tax is large enough to justify the intermediary fees, the deadline pressure, and the adviser costs.

Start early, keep every deadline on a calendar, and get advice before you sign the sale contract, because the exchange agreement must be in place before the sale closes. A qualified tax adviser can check your specific facts, including state taxes, depreciation recapture, and debt, against the federal rules. This article is general information, not tax or legal advice; see Tax Deductions vs Tax Credits 2026 for how deferral differs from a deduction or a credit.

Frequently Asked Questions

Does a 1031 exchange eliminate capital gains tax?

No. A 1031 exchange defers the tax. The deferred gain carries into the replacement property through its basis, so the tax can come due later when you sell without exchanging, unless an exception such as the step-up in basis at death applies.

Can I do a 1031 exchange with my primary home?

No. The property must be held for investment or business use. A primary residence does not qualify, though a separate exclusion under Section 121 may apply when you sell a home you lived in.

What happens if I miss the 45-day identification deadline?

Missing the 45-day deadline generally disqualifies the exchange, and the gain becomes taxable. The deadlines are strict, with almost no extensions, so investors usually line up candidate properties before they sell.

Can I use a 1031 exchange for stocks or crypto?

No. Since the Tax Cuts and Jobs Act took effect in 2018, Section 1031 applies only to real property. Stocks, bonds, crypto, and other personal property do not qualify.

Disclaimer: This article provides general information about Section 1031 exchanges. It is not tax, legal, or financial advice. Tax law is complex and changes over time, and your outcome depends on your specific facts. Speak to a qualified tax adviser and attorney before making any tax, legal, or investment decision.