Two Landlords Sold Matching Rentals, but Only One Owed Tax This Year

Two retired landlords sold nearly identical rental properties in the same year, yet their tax outcomes were very different. The reason came down to a single choice made before either one contacted a real estate agent.

Imagine two retired landlords, each owning a rental that had been fully paid off years earlier. The properties were essentially twins: similar appreciation, the same depreciation history, and eager buyers. Both owners sold. One ended up with a capital gains tax bill, while the other owed nothing on the transaction.

The difference was made before closing. The second landlord used a Section 1031 like-kind exchange and rolled the sale proceeds into another rental. These landlords are a composite example, but the tax rules that separate them apply to any investor holding an appreciated property.

Many investors are in that position. The S&P CoreLogic Case-Shiller National Home Price Index reached 337.3, measured against a base of 100 in January 2000, which is the highest level in five years. In Charleston, South Carolina, FHFA data shows five-year price growth of 61.64%.

What Section 1031 Means for Rental Property Swaps

The main rule is simple. Under 26 U.S.C. § 1031(a)(1), no gain or loss is recognized when real property held for productive use in a trade or business or for investment is exchanged solely for real property of like kind that will also be held for productive use in a trade or business or for investment.

“Like kind” is broader than it may sound. IRS Publication 544 explains that real estate can be exchanged for real estate, including city property for farm property and improved property for unimproved property. A rental house can even be swapped for a small retail building.

There are limits, however. Under § 1031(a)(2), property held primarily for sale is excluded, so house flippers do not qualify. Publication 544 also says property used for personal purposes, such as a home, does not qualify. And under § 1031(h), U.S. and foreign real property are not like kind, so a Tucson rental cannot be exchanged for a villa overseas.

Two Deadlines Can Ruin the Exchange

The second landlord sold first and bought later, which makes the deal a deferred exchange. The clock starts when the old rental is transferred. Under 26 U.S.C. § 1031(a)(3)(A), the replacement property must be identified within 45 days. Under § 1031(a)(3)(B), it must be received within 180 days or by the return’s due date with extensions, whichever comes first.

That “whichever comes first” language is where many taxpayers get caught. If the sale happens late in the year, the tax-filing deadline can arrive before the 180-day window ends. Filing an extension preserves the full time period.

Cash handling matters too. Publication 544 says proceeds are constructively received when they are made available so the taxpayer can draw on them at any time. If the money goes into the landlord’s checking account, the exchange fails. That is why these transactions are usually handled by a qualified intermediary, who holds the funds and purchases the replacement property.

Deferred Gain Moves Into the New Property

Section 1031 postpones the tax rather than erasing it. Under § 1031(d), the replacement property generally takes the old property’s basis. In an example from Publication 551, real estate with a $50,000 adjusted basis and an $80,000 market value is exchanged for $80,000 of investment real estate. No gain is recognized, and the original basis carries over, so the untaxed gain follows the new property.

Any cash taken out is taxable. Under § 1031(b), money or non-like-kind property, often called “boot,” is taxed up to the amount of the gain. Publication 544 gives an example in which property worth $100,000 with a $50,000 basis is exchanged for real estate worth $60,000 plus $40,000 in cash. The realized gain is $50,000, and the recognized gain is $40,000, which equals the cash received.

Exchanges With Family Bring a Holding Period Rule

Under 26 U.S.C. § 1031(f)(1)(C), if the exchange involves a related person and either side disposes of the property within two years of the last transfer, the deferral is lost. The gain is then recognized on that later sale. Publication 544 defines related persons to include a spouse, siblings, parents, children, and corporations you own more than 50% of.

Why the First Landlord Still Had to Pay

A straightforward sale places the gain on that year’s return. Publication 544’s current edition lists maximum capital gains rates of 0%, 15%, 20%, 25%, and 28% for 2025. On rental property, the portion of gain tied to prior depreciation is unrecaptured section 1250 gain, taxed at up to 25%. The rest falls into the 0%, 15%, or 20% brackets depending on taxable income.

For 2025, Publication 550 sets the 0% threshold at $96,700 of taxable income for joint filers and $48,350 for single filers. Rates stack like a ladder: a large sale adds to pensions and IRA withdrawals, and only the income above each bracket is taxed at the higher rate. State tax may also apply, depending on where the landlord lives.

Paying the tax does buy something, though: a clean exit. There is no intermediary, no deadlines, no carryover basis in a new property, and the cash can be used for anything. The exchanger, by contrast, kept all of the equity invested and producing rent. If that landlord continues exchanging and holds the property until death, heirs generally receive a stepped-up basis that eliminates the deferred gain.

Who Benefits From Deferring and Who Should Cash Out

Deferral works best for a landlord who wants to remain in real estate, already has a replacement property in mind, and can meet both deadlines without shortcuts. An outright sale is better for a landlord who is finished with tenants and repairs, needs cash for retirement income or care expenses, or values simplicity more than postponed tax. Before listing a property, it is wise to run the numbers both ways with a CPA.