This article is general information, not tax or legal advice. 1031 exchanges are technical, and the right move depends on your facts. Confirm every detail with a qualified CPA, tax attorney, and qualified intermediary before you sign a sale contract.
The 30-second answer
- A 1031 exchange lets you defer capital gains and depreciation recapture tax when you sell investment or business real estate and buy more of it.
- Since 2018, only real property qualifies. Your home, a flip, and personal property like equipment do not.
- You have 45 days to identify replacement property in writing and 180 days to close, or your tax return due date if that comes first.
- You can never touch the sale money. A qualified intermediary must hold it.
- To defer all the tax, buy property of equal or greater value and reinvest all the cash. Anything you keep is taxable “boot.”
The 1031 exchange rules let you sell an investment property and roll the gain into a new one without paying tax on the sale today. It is one of the most powerful tools in real estate, and also one of the easiest to break with a single missed date.
We see the same pattern every year. Investors hear “1031” from a friend, list the property, and only call a tax advisor after the closing is scheduled. By then, some of the best options are gone.
Our view is simple: plan the exchange before you list, not after you accept an offer. The rules below show why.
What is a 1031 exchange?
A 1031 exchange is a swap of one investment or business real property for another under Section 1031 of the Internal Revenue Code, which lets you defer the tax on your gain. It is often called a like-kind exchange.
Think of it like moving money between two pockets of the same coat. As long as the money never leaves the coat, the IRS treats it as the same investment, just in a new form. Once it lands in your hand, the tax bill arrives.
The key word is defer. The tax does not disappear. Your old basis carries into the new property, so the gain waits until you sell without exchanging again.
Why do investors use a 1031 exchange?
Investors use 1031 exchanges to keep their full equity working instead of handing a large share to the IRS at sale. On a long-held rental, the tax on a sale can be bigger than most people expect, because it stacks several layers.
Here is a hypothetical example for illustration only. An investor in the top bracket sells a rental for $900,000. They bought it for $550,000 and took $150,000 of depreciation, so their adjusted basis is $400,000 and their gain is $500,000.
| Tax layer (federal, hypothetical) | Rate | Tax |
| Unrecaptured Section 1250 gain on $150,000 of depreciation | Up to 25% | $37,500 |
| Long-term capital gain on the remaining $350,000 | 20% | $70,000 |
| Net investment income tax on $500,000 | 3.8% | $19,000 |
| Total before state tax | $126,500 |
The IRS confirms the 0%, 15%, and 20% long-term capital gains rates and the 25% maximum rate on unrecaptured Section 1250 gain. A properly structured exchange defers all of it, which leaves about $126,500 more to buy the next property.
If you used cost segregation or 100% bonus depreciation on the property, recapture can be even larger. That makes the exchange decision more important, not less.
What property qualifies for a 1031 exchange?
Only real property held for investment or for use in a trade or business qualifies. The IRS states that since 2018, Section 1031 applies only to real property, not personal or intangible property like vehicles, machinery, or artwork.
“Like-kind” is broader than most people think. Real property generally trades for real property, so these swaps can all qualify:
- A rental house for a small apartment building
- Raw land for a retail strip center
- A duplex for a warehouse
- One rental for two or three smaller rentals
What does not qualify:
- Your primary residence (a separate home sale exclusion may apply instead)
- Property held primarily for sale, such as a fix-and-flip
- US property for foreign property, which are not like-kind to each other
- Stocks, bonds, and partnership interests
Vacation homes sit in a gray area.
Under Rev. Proc. 2008-16, as summarized by the Journal of Accountancy, the IRS will not challenge a dwelling unit’s investment status if you own it for 24 months, rent it at fair value for at least 14 days a year, and keep personal use to the greater of 14 days or 10% of rental days.
What are the 1031 exchange deadlines?
The two deadlines are the 45-day identification period and the 180-day exchange period, and they run at the same time from the day you close on the sale. Per the Form 8824 instructions, you must receive the replacement property by the earlier of 180 days or your tax return due date, including extensions.
There are no extensions for weekends or holidays in the ordinary case. Day 45 is day 45.
The year-end sale trap
This one catches investors every fall. Say you close a sale on November 2, 2026:
| Milestone | Date |
| Sale closes | November 2, 2026 |
| Day 45: written identification due | December 17, 2026 |
| Tax return due date (no extension) | April 15, 2027 |
| Day 180 | May 1, 2027 |
Because April 15 comes before day 180, your exchange window shrinks unless you file an extension. Filing an extension restores the full 180 days. Miss this, and a deal closing in late April could fail.
How many replacement properties can you identify?
You can identify replacement properties under one of three rules, set out in Treasury Regulation 1.1031(k)-1-1). The identification must be in writing, signed, and delivered to the right party by day 45.
- Three-property rule: identify up to three properties of any value.
- 200% rule: identify any number of properties, as long as their total value is no more than 200% of what you sold.
- 95% rule: identify more than that, but only if you actually buy at least 95% of the total value you identified.
If you over-identify and do not meet the 95% rule, the regulation treats you as having identified nothing. Most of our clients use the three-property rule because it is the simplest to get right.
Why can’t you touch the money in a 1031 exchange?
You cannot receive, borrow against, or control the sale proceeds at any point during the exchange. If the money is credited to your account or made available to you, that is “constructive receipt,” and the exchange fails.
That is why you need a qualified intermediary (QI), a neutral third party who holds the funds and handles the exchange documents. The QI must be in place before the sale closes. People who acted as your agent recently, such as your own attorney, accountant, or real estate agent, generally cannot serve as your QI.
Choose a QI the way you would choose a bank for a large deposit. Ask about bonding, insurance, and how funds are held, because the QI controls your cash for up to six months.
What is boot, and how do you avoid paying tax on it?
Boot is any cash or non-like-kind value you receive in the exchange, and it is taxable. The IRS says you must recognize gain to the extent of other property and money received.
To defer all the tax, follow three rules of thumb:
- Buy equal or greater value than the property you sold.
- Reinvest all net cash from the sale through the QI.
- Replace any debt paid off at sale, with new debt or added cash.
Using the earlier hypothetical, if the investor sells for $900,000 and buys for $800,000, roughly $100,000 becomes taxable boot. Partial exchanges are legal. You just pay tax on the part you keep.
What other 1031 exchange rules trip investors up?
A few quieter rules cause real problems:
- Same taxpayer: the name on the sale must match the name on the purchase. An LLC that sells generally must be the one that buys.
- Related parties: exchanges with family or related entities face extra limits, and the IRS requires Form 8824 for the 2 years after a related-party exchange.
- Holding intent: Section 1031 sets no bright-line holding period, but the property must be held for investment. We treat the two-year safe harbor for dwellings as a conservative benchmark, not a rule.
- Reporting: every exchange is reported on Form 8824 with your return for the year of the sale.
How do you plan a 1031 exchange that works?
Start before you list, and line up your team early. Here is the order we recommend:
- Talk to a tax advisor about whether an exchange beats paying the tax, given your age, goals, and heirs.
- Engage a qualified intermediary before the sale closes.
- Add exchange language to the sale contract.
- Shortlist replacement properties before day 1, not day 40.
- Calendar day 45, day 180, and your return due date. File an extension if needed.
- Close on the replacement and report the exchange on Form 8824.
Our honest caveat: a 1031 exchange is not right for everyone. If you need the cash, are buying a cheaper property, or are close to an exit, paying some tax now can be the cleaner choice. Our liquidity event planning and exit planning guide cover those paths.
For many long-term investors, one more angle matters. If you hold exchanged property until death, heirs may receive a stepped-up basis, which can erase the deferred gain entirely. That is why exchanges often sit inside a broader tax planning for high-income earners strategy.
Frequently asked questions
Can I do a 1031 exchange on my primary residence?
No. A 1031 exchange only covers property held for investment or business use. Your primary residence may qualify for the separate home sale exclusion instead. If you converted a former home into a rental, or rent part of a property, the answer gets more complex, so review the facts with a tax advisor before you sell.
What happens if I miss the 45-day deadline?
The exchange generally fails, and the sale is treated as a regular taxable sale. The 45-day and 180-day deadlines are strict, and ordinary weekends or holidays do not extend them. This is why we recommend shortlisting replacement properties before the sale even closes.
Can I do a 1031 exchange into a property I already own?
Generally, no. You must acquire replacement property within the exchange, and buying from yourself does not work. Improvement and reverse exchanges exist for building on or buying before you sell, but they need specialized structures and an experienced qualified intermediary.
Do I have to pay state tax on a 1031 exchange?
Many states follow the federal deferral, but rules vary, and some track the deferred gain if you move your investment to another state. Check your state’s rules with your tax advisor before you sell, especially if the replacement property is out of state.
How long do I have to hold a property after a 1031 exchange?
Section 1031 sets no fixed holding period. What matters is that you held the property for investment. For dwelling units, the IRS safe harbor uses 24 months, which makes two years a conservative benchmark. Selling or moving in quickly can put the exchange at risk.
Is a 1031 exchange worth it on a smaller property?
Often, yes. Even a modest rental can carry tens of thousands in deferred tax from depreciation recapture and gains. Weigh that against QI fees and the pressure of the deadlines. Run the numbers both ways before deciding.
The bottom line on 1031 exchange rules
The 1031 exchange rules reward investors who plan early. Qualify the property, line up a qualified intermediary, hit day 45 and day 180, and reinvest everything if you want to defer everything.
If you are thinking about selling investment property in the next year, book a strategy call with our team. We will model the exchange against a straight sale, including recapture and state tax, as part of our tax planning services. Call 573-234-4660 or visit us at 200 E Southampton Dr, Suite 101, Columbia, MO 65203.
*The dollar figures in this article are hypothetical and simplified for illustration. Your results will depend on your income, basis, debt, and state.*
