Short answer: Yes, if the second home is held as an investment, not for personal use. Under the IRS safe harbor in Rev. Proc. 2008-16, you own it for 24 months after the exchange, rent it at fair rent at least 14 days a year, and keep personal use to the greater of 14 days or 10% of rented days.
Reviewed by Jon Hilley. Last updated September 29, 2026.
A 1031 exchange can buy a second home as long as that home is genuinely an investment property and not a personal getaway. Section 1031 only covers real property held for investment or for use in a business, so what matters is how you use the property, not what you call it. For the bigger picture on how exchanges interact with homes you live in, read our guide to 1031 exchanges and your home.
The IRS gives a safe harbor for vacation and second homes in Rev. Proc. 2008-16. If you meet it, the IRS won't challenge whether the home was held for investment. If you don't, the exchange can still qualify, but you'd have to prove investment intent on the facts, which is a much weaker position.
Key rules
- Investment use is required: the replacement property must be held for productive use in a trade or business or for investment, not for personal enjoyment (IRC §1031(a)(1))
- Rental test after the exchange: to use the safe harbor, you own the second home for 24 months after the exchange and rent it at fair rent for at least 14 days in each of those two 12-month periods (Rev. Proc. 2008-16)
- Personal use limit: in each of those 12-month periods, your personal use can't exceed the greater of 14 days or 10% of the days it was rented at fair rent (Rev. Proc. 2008-16)
- The same test applies to a second home you sell: a vacation home you give up fits the safe harbor if you owned it for the 24 months immediately before the exchange and met the same rental and personal use limits (Rev. Proc. 2008-16)
- Pure personal use fails: the Tax Court denied exchange treatment for vacation homes the owners used personally and did not rent (Moore v. Commissioner, T.C. Memo. 2007-134)
- Moving in later has a 5-year wait: if you later make the property your main home, you can't use the home sale exclusion on it until 5 years after you acquired it in the exchange (IRC §121(d)(10))
What makes a second home an investment property?
Intent at the time of the exchange controls, and the IRS judges it by your behavior. Renting the home at market rates, advertising it, keeping booking records and reporting it as a rental on your tax return all support investment intent. Keeping it empty for family weekends does not.
Fair rent means a rate a stranger would pay. Days you rent to a relative at a discount, or let friends stay for free, generally count as personal use rather than rental days. One exception: a family member who rents the home at fair rent and uses it as their main home is not treated as personal use by you under the safe harbor.
Can I use the second home at all?
Yes, within limits. Under the safe harbor, if you rent the home at fair rent for 150 days in a year, 10% of that is 15 days, so you can use it yourself for up to 15 days. If you rent it for only 100 days, 10% is 10 days, so the 14-day floor applies instead. Use by family members generally counts as your personal use too.
What if I miss the safe harbor?
Falling short of Rev. Proc. 2008-16 doesn't automatically disqualify the exchange, but it means relying on the facts to show investment intent. A home rented regularly with light personal use has a reasonable argument. A home that was barely rented looks like the Moore case, and those taxpayers lost.
Can you live in a 1031 exchange property after 2 years?
Yes. Converting an exchanged rental into a personal residence after a genuine rental period, such as the 24 months the safe harbor looks at, isn't prohibited, but the tax rules make shortcuts expensive. If you later make it your main home and sell it, the §121 exclusion ($250,000, or $500,000 for married couples filing jointly) isn't available until 5 years after the exchange (often called the 1031 exchange 5-year rule), and the exclusion is reduced for periods of nonqualified use (IRC §121(b)(5)).
Planning to move in before you even close on the replacement undermines the investment intent the whole 1031 exchange depends on.
Example: exchanging a rental condo into a beach house
- Net sale price of the rental condo: $600,000
- Adjusted basis ($400,000 cost minus $50,000 depreciation): $350,000
- Realized gain: $250,000
- Beach house purchase price (all net proceeds reinvested, any mortgage replaced): $650,000
- Gain deferred: $250,000
- Basis in the beach house ($650,000 minus $250,000 deferred gain): $400,000
- Federal tax deferred: $52,000 ($50,000 × 25% = $12,500, plus $200,000 × 15% = $30,000, plus $250,000 × 3.8% = $9,500)
Assumptions: the $50,000 depreciation portion is taxed at the 25% maximum rate for unrecaptured §1250 gain, the remaining $200,000 at a 15% long-term capital gains rate, plus the 3.8% net investment income tax; state tax not included.
To stay inside the safe harbor, the owner rents the beach house at fair rent for 200 days in each of the next two years. Ten percent of 200 is 20 days, which is more than 14, so the family can use the house for up to 20 days a year.
Other questions investors ask
How do you avoid capital gains tax on a 2nd home?
A second home you use personally doesn't qualify for a 1031 exchange, and the §121 exclusion only covers your main home. Common routes are converting it to a genuine rental and exchanging it once it meets the safe harbor, making it your main home for 2 of the last 5 years, or holding it so your heirs get a stepped-up basis. Your CPA can compare them.
What is the 2 year rule for 1031?
It usually refers to one of several rules, including the 24-month safe harbor for vacation homes described above and the 2-year holding requirement for exchanges with related parties. We explain each one in What is the 2-year rule for a 1031 exchange?
Common mistakes
- Buying the dream house first and planning the rental later: We see investors who clearly intend the replacement as a family retreat and treat the rental test as an afterthought. Intent is judged at the exchange, and the paper trail matters.
- Counting free family stays as rental days: Stays by relatives or friends who don't pay fair rent generally count as personal use and can quietly push you over the limit.
- Trying to sell a vacation home that was never rented: A second home you only used yourself isn't investment property, so it can't be the relinquished property in an exchange, no matter how long you owned it.
- Converting to a primary residence too quickly: The most common problem we see is owners who move in within a year or two and then expect the full home sale exclusion. The 5-year rule and nonqualified use rules still apply.
