A landlord selling a rental house may be looking at a new building before the sale has even closed. Section 1031 can help move the investment from one qualifying property to another while deferring some tax on the gain.
But the tax rule does not decide whether an apartment building or office is worth buying. That depends on the rent, the repairs, the financing and the owner’s ability to manage the property. A deal that misses those tests can be costly, even if the exchange meets the IRS deadlines.
The Tax Follows the Investment
Section 1031 generally applies when someone exchanges real property held for investment or business use for other qualifying real property. A rental house may be exchanged for a commercial building. The properties can differ in type or quality, but U.S. property cannot be exchanged on a like-kind basis for property outside the country.
A primary residence does not qualify as investment property. Property held mainly for sale, such as real estate inventory, does not qualify either. Since 2018, Section 1031 has covered real property only, not equipment, vehicles, artwork or other personal property.
The tax is postponed, not wiped away. The replacement property generally takes on the old property’s tax basis, with adjustments. If the owner later sells without another qualifying exchange, the deferred gain may become taxable.
Homeownership and investment in real estate represent the tools Black Americans in general, and millennials in particular can use to build or rebuild their wealth. — Donnell T. Williams
Williams was speaking about real estate investment generally, not 1031 exchanges. The exchange can keep equity invested. It cannot provide the extra capital, credit or experience required to buy and run a commercial property.
The Debt Can Change the Tax Result
Consider a rental house sold for $800,000. Its adjusted tax basis is $400,000, and the owner owes $300,000 on the mortgage. These figures are an illustration, not a calculation of tax due.
The difference between the sale price and basis is not automatically the taxable gain. Depreciation, selling costs and other details affect the calculation. The mortgage matters too, but subtracting it from the sale price does not establish the tax bill.
In a deferred exchange, a qualified intermediary usually holds the sale proceeds and applies them to the replacement property. The owner cannot take control of the money and decide later where to invest it.
Debt relief is another part of the calculation. Mortgage debt the owner is relieved of can count as money received. Debt taken on for the replacement property, or cash the owner adds, may offset it. Cash and other non-like-kind property can also result in recognized gain. The amount depends on the whole transaction and cannot exceed the gain realised.
So the often-repeated advice to buy property worth at least as much as the one sold is a rule of thumb, not a complete tax test. A lower-value replacement does not automatically disqualify an exchange; the cash, debt and other property involved determine whether some gain must be recognised.
A tax professional should review the actual numbers before the owner commits to a replacement property. The $800,000 example cannot show how much to spend or how much gain may be deferred.
The Clock Starts at Transfer
After transferring the property being sold, the owner has 45 days to identify replacement property in writing. The purchase must be completed within 180 days, or by the federal tax return due date for the year of sale, including extensions, if that comes first.
The three-property rule allows an owner to identify up to three possible replacements, regardless of their combined value. Different limits apply if the owner identifies more. The intermediary should check the written identification before it is submitted.
Those 45 days can pass quickly. A property may fail inspection; a lender may need more time; the seller may reject the offer. None of those problems automatically extends the deadline. The IRS’s real estate exchange guidance links to Form 8824, used to report an exchange.
The intermediary must be chosen before the sale closes. Some people who acted as the taxpayer’s agent, including an attorney, accountant or real estate broker during the previous two years, generally cannot serve in that role.
Equity Helps, But It May Not Be Enough
The exchange can carry equity from one property into another. It does not guarantee a lender will provide the rest of the purchase money.
In its 2025 report on household finances, the Federal Reserve said Black and Hispanic credit applicants were particularly likely to report denial or approval for less credit than requested in 2024. The survey covers credit applications broadly; it does not measure commercial real estate loans specifically.
For someone moving into commercial property, the practical concern is whether the financing will come through on terms the deal can support. If the loan is smaller than expected, the buyer may need more cash, a partner or a different property. Each choice can affect control and returns.
The property itself will have a different operating profile. An apartment building can bring shared-system repairs and maintenance across many units. An office or retail property may rely on only a few tenants. If one leaves, income falls while bills remain.
Before making an offer, examine the leases, rent roll, repair history, taxes, insurance, utilities and planned capital work. Then check whether the income still holds up after vacancy and management costs. A seller’s projected rent is not the owner’s take-home income.
A reserve for repairs and vacancies matters too. One roof replacement can absorb cash that looked available at closing.
The wealth gap and homeownership gap will continue to get wider and wider. We have to address it now. — Ashley Thomas III
Thomas made the comment while discussing housing access and discriminatory systems, not 1031 exchanges. The quote speaks to the wider conditions Black buyers may face. A tax strategy cannot remove a credit barrier or make a lender’s terms workable.
Decide Before Putting the House On the Market
An exchange may suit an owner who wants to keep equity in real estate or move into a different income-producing property. It may not suit someone who needs the proceeds for personal use, has no replacement property in mind or does not want the work of commercial ownership.
Before listing, have a tax professional review the adjusted basis, depreciation, mortgage and likely gain. Ask an attorney to check the contract and title. Speak to the intermediary about the process, and ask a lender and experienced property manager whether the proposed purchase can work financially.
Settle the ownership structure early. Generally, the taxpayer who transfers the old property must receive the replacement property. A last-minute change between an individual, partnership or company can complicate the exchange. Coordinate the title, financing and exchange arrangements before closing.
The new property must justify the move on its own. If the rent, financing and operating plan do not add up, tax deferral is not enough reason to buy.
Frequently Asked Questions about Rental Houses
Can I exchange a rental house for an office building?
Generally, yes. Both properties must meet the investment or business-use rules, and the exchange must satisfy the ownership, timing and other requirements.
Does a 1031 exchange eliminate capital gains tax?
No. It generally defers gain. The replacement property usually carries over the old property’s tax basis, so the deferred gain may become taxable if the owner later sells outside another qualifying exchange.
Can I use the sale proceeds before buying the replacement property?
Generally, no. In a deferred exchange, the seller must avoid actual or constructive receipt of the proceeds. A qualified intermediary commonly holds and uses the funds to acquire the replacement property.
When do the 45-day and 180-day periods begin?
Both generally start when the owner transfers the property being sold. Replacement property must be identified within 45 days and received by the earlier of 180 days or the tax return due date, including extensions.
What if I buy a less expensive property or receive debt relief?
A lower-value property does not automatically disqualify the exchange. Cash received, debt relief not offset by replacement debt or cash added, and other non-like-kind value may result in recognized gain. The tax result depends on the whole transaction.
Which professionals should I consult?
Before the sale closes, consult a tax professional, real estate attorney and qualified intermediary. For a commercial purchase, ask a lender and experienced property manager or operator to assess financing, leases, vacancies, repairs and reserves.
