Property Swap Tax: 1031 Like-Kind Exchange Deadlines and Rules

A 1031 like-kind exchange lets you sell one investment or business real property and roll the proceeds into another without paying capital gains tax at the time of the trade. Federal law treats the transaction as a continuation of your original investment rather than a sale, so the tax is deferred until you eventually cash out. Deferred, not forgiven. The rules on timing, property type, and who handles the money are strict, and a single misstep converts the whole transaction into a taxable sale.

What Qualifies as Like-Kind Property

Both the property you give up and the property you receive must be real property held for investment or for use in a trade or business.¹ “Like-kind” is broader than it sounds. It refers to the general nature of the property, not its use. An apartment building qualifies as like-kind to raw land, a warehouse, or a strip mall. Any qualifying real estate can be exchanged for any other qualifying real estate.

Since the Tax Cuts and Jobs Act, only real property qualifies. Machinery, vehicles, artwork, patents, and other personal property are taxable when exchanged, regardless of how they were used.²

Some real estate is also out. Property held primarily for resale, like houses a developer buys to flip, does not qualify.¹ Your primary residence does not qualify because it is personal-use property.³ A vacation home you rarely rent out generally fails the investment-use test.

Vacation and Mixed-Use Property

If a property doubles as a rental and a personal getaway, IRS Revenue Procedure 2008-16 sets a safe harbor. The property must be rented at fair market value for at least 14 days in each of the two 12-month periods before the exchange, and your personal use during each of those periods can’t exceed the greater of 14 days or 10 percent of the days rented. Time you spend on maintenance and repairs does not count as personal use.

Converting a former primary residence into exchange-eligible property works on similar math: own it for at least two years before selling, rent it for at least 14 days each year, and hold personal use to no more than 14 days or 10 percent of rental days. The IRS knows this playbook. Falling short of the thresholds turns the entire transaction into a taxable sale.

The 45-Day and 180-Day Deadlines

Two deadlines govern every exchange. You have 45 days from the date you transfer the old property to identify potential replacement properties in writing. You then have 180 days from that same transfer date, or the due date of your tax return for the year (including extensions), whichever comes first, to close on the replacement.¹ The IRS does not grant extensions for financing delays, a seller backing out, or general inconvenience.

When a federally declared disaster hits your area, the IRS can postpone both deadlines, but only through a specific Disaster Relief Notice under Revenue Procedure 2018-58. A presidential disaster declaration alone is not enough. Check for the IRS notice before assuming you have extra time.

Your written identification has to be signed and delivered to a party involved in the exchange who is not a disqualified person. Three rules limit how many properties you can name:

Three-property rule: up to three replacement properties, regardless of their combined value.
200 percent rule: more than three properties, as long as their total fair market value doesn’t exceed 200 percent of the value of what you gave up.
95 percent rule: any number of properties at any value, but you must actually acquire properties whose combined value equals at least 95 percent of everything you identified.

Most exchangers stay with the three-property rule. The 95 percent rule is punishing if a single deal falls through: identify six properties, close on five, and you can blow the entire exchange if that fifth property was needed to clear the threshold.

Why You Need a Qualified Intermediary

You can never touch the sale proceeds. If you have actual or constructive receipt of the money at any point between selling the old property and buying the new one, the exchange fails. The IRS’s safe harbor for avoiding this is a qualified intermediary, who holds the funds in a separate account and uses them to acquire the replacement property on your behalf.⁴

Not just anyone can serve. The IRS treats as “disqualified persons” anyone who acted as your employee, attorney, accountant, investment banker, broker, or real estate agent within the two years before the exchange.⁵ People related to those individuals are disqualified too, tested under attribution rules with a 10 percent ownership threshold. Someone whose only prior work for you was facilitating an earlier 1031 exchange is not disqualified, and banks or escrow companies providing routine financial services are also excluded from the ban.

Fees for a standard deferred exchange typically run between $500 and $1,500. Qualified intermediaries are not federally regulated or bonded, so their financial stability is worth vetting. If the intermediary goes bankrupt while holding your proceeds, that money may be gone.

Making the Deferral Complete

The mechanism behind the deferral is basis carryover. Your basis, roughly what you paid adjusted for improvements and depreciation, moves from the old property to the new one.¹ That low carried-over basis is how the IRS preserves the right to tax the full accumulated gain when you eventually sell for cash.

Trouble starts when the swap isn’t clean. Any non-like-kind value you receive, called “boot,” triggers immediate tax. Boot includes cash paid to equalize values and debt relief. If the mortgage on the replacement property is $100,000 less than the mortgage on the property you gave up, the IRS treats that $100,000 of debt relief as boot.³

The taxable amount is capped at the lesser of your realized gain or the boot received.¹ Receive $50,000 in boot on a property with $30,000 of gain, and you owe tax on $30,000. Any remaining deferred gain stays embedded in your new basis. Losses are never recognized in a like-kind exchange, even when boot is involved, so you can’t use a 1031 to generate a deductible loss.

The practical rule for full deferral is simple. Acquire replacement property worth at least as much as what you sold, reinvest all the cash proceeds, and take on at least as much debt as you shed. Any shortfall in value, equity, or debt creates boot.

Depreciation Recapture Still Follows You

Depreciation is where 1031 math gets more complicated. If you’ve been depreciating a rental building for years, the IRS expects to collect on those deductions eventually. The portion of gain attributable to depreciation you claimed, called unrecaptured Section 1250 gain, is taxed at a maximum rate of 25 percent when recognized, which is higher than most long-term capital gains rates.⁶ The IRS calculates recapture based on depreciation “allowed or allowable,” so you owe the tax even if you never actually claimed the deductions.

A properly structured exchange defers depreciation recapture along with capital gain. But if boot is recognized, the IRS applies the tax to depreciation recapture first, before treating any remaining gain as capital gain. If you used cost segregation to reclassify parts of the building as shorter-lived personal property, depreciation on those components is recaptured as ordinary income at your marginal rate rather than the 25 percent cap.

The replacement property also inherits the depreciation history of what you gave up. You “step into the shoes” of the old property for depreciation purposes, which prevents you from restarting the clock on value carried over from a prior exchange.

Reverse and Improvement Exchanges

A standard exchange assumes you sell first and buy second. Markets don’t always cooperate. A reverse exchange lets you acquire the replacement first, using a structure the IRS approved in Revenue Procedure 2000-37.⁷ An exchange accommodation titleholder takes legal title to the replacement property under a written qualified exchange accommodation arrangement, because you can’t own both properties at once and stay within the safe harbor. Within 45 days after the titleholder acquires the replacement, you must identify what you intend to sell, and the titleholder must transfer the replacement to you within 180 days.

An improvement exchange works the same way when the replacement property needs construction or renovation to match the value of what you sold. The titleholder holds title while improvements are made with your exchange funds. The improvements have to be substantially complete within the 180-day window. This is where deals often collapse. Construction delays past day 180 can disqualify the whole exchange, and no mechanism exists to extend the deadline for a slow contractor.

Related-Party Exchanges

Swapping property with a family member or an entity you control triggers extra rules. If either you or the related party sells the property received in the exchange within two years, the deferral is retroactively disallowed and the original gain becomes taxable.⁸ The rule exists to stop related parties from shuffling basis between themselves and cashing out at a lower tax cost. Narrow exceptions apply when one party dies, when the property is involuntarily converted, or when the taxpayer can prove tax avoidance wasn’t a principal purpose of the exchange, and that last one is harder to satisfy than it sounds.

Reporting the Exchange on Form 8824

Every like-kind exchange goes on IRS Form 8824, attached to your federal income tax return for the year the exchange began.⁹ Individuals file it with Form 1040; partnerships and corporations file it with their entity returns. The form asks for descriptions of both properties, the identification and transfer dates, fair market values, the adjusted basis of what you gave up, and any boot received.

Watch the extension trap. Your return is due by the standard filing deadline, typically April 15 for individuals. An extension gives you more time to file, but the 180-day exchange window ends whichever comes first, the 180 days or the return due date. If your return is due before day 180 and you haven’t filed an extension, the return due date becomes your exchange deadline.¹

Failing to file Form 8824 doesn’t automatically make the exchange taxable, but the IRS may treat an unreported exchange as a standard sale and assess tax on the full gain. Keep the exchange agreement, the 45-day identification letter, closing statements for both properties, the intermediary’s accounting of funds, and invoices for improvements and professional fees. If the IRS asks questions three years later, a complete file is the difference between a quick resolution and a drawn-out audit.

Swap Till You Drop

The reason 1031 exchanges anchor so much real estate wealth planning goes beyond deferral. When you die, your heirs receive the property with a basis equal to its fair market value on the date of your death.¹⁰ Every dollar of gain you deferred through decades of exchanges disappears. If your heirs sell for the same price the property was worth on the date of your death, their taxable gain is zero.

Practitioners call this “swap till you drop.” A taxpayer who bought a rental for $200,000, exchanged into properties now worth $2 million, and dies holding that last property passes it to heirs with a $2 million basis. The $1.8 million in deferred gain simply ceases to exist for income tax purposes. Congress has proposed limiting the stepped-up basis at death more than once, and future legislation could change this outcome. Under current law, though, lifetime deferral followed by inheritance remains one of the most powerful tax strategies available to real estate investors.

1
Office of the Law Revision Counsel. 26 USC 1031 – Exchange of Real Property Held for Productive Use or Investment
2
Internal Revenue Service. Like-Kind Exchanges – Real Estate Tax Tips
3
Internal Revenue Service. Like-Kind Exchanges Under IRC Section 1031
4
Internal Revenue Service. Sales Trades Exchanges
5
Internal Revenue Service. 26 CFR Part 1 TD 8982
6
Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed
7
Internal Revenue Service. Revenue Procedure 2000-37
8
Internal Revenue Service. Revenue Ruling 02-83
9
Internal Revenue Service. Instructions for Form 8824
10
Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent