The question arrives in a specific shape almost every time. Someone owns a share of a building with two or three other people, one of them wants out, and the remaining owner has a property to sell. Can the sale proceeds be exchanged into buying the departing partner's share?
The instinctive answer is no, and the instinct is mostly right. But there is a genuine exception, it is narrow, and it is worth knowing precisely because the general rule is stated so confidently everywhere else.
The general rule
A 1031 exchange requires you to acquire replacement property. Paying down debt on something you own, improving a building you already hold, or buying more of an interest you already have is not an acquisition of new property in the way the statute contemplates. So the default answer to "can I exchange into something I already own" is no.
There is a related and equally firm rule sitting next to it: partnership interests are not like-kind property. Buying a partner's LLC membership interest is buying an interest in an entity, not an interest in real estate, and entity interests are excluded from Section 1031. That is the same principle behind drop and swap.
Put those together and the situation above looks closed. Except in one configuration.
The exception: buying out every remaining partner
Revenue Ruling 99-6 addresses what happens when a partnership goes from multiple partners to a single owner.
If you are already a partner and you acquire all of the remaining partners' interests, the partnership terminates, because a partnership cannot have one member. For tax purposes the transaction is recharacterized: the partnership is treated as having liquidated and distributed its assets, and you are treated as acquiring the underlying real estate rather than partnership interests.
That recharacterization is the whole point. What you receive is real property, which is exactly what a 1031 exchange needs. So a taxpayer with proceeds from another sale can, in the right circumstances, exchange into the buyout.
The conditions are strict, and each word matters:
- You must acquire all remaining interests, not merely some. Buying one partner out of three leaves a partnership standing, and you are back to purchasing an entity interest.
- The result must be that the partnership terminates, leaving the property in your hands.
- Everything else still applies: the 45- and 180-day deadlines, the same-taxpayer rule, value and debt replacement.
| Situation | Generally works? |
|---|---|
| Exchange into a property you wholly own already | No |
| Use proceeds to pay down debt on a property you own | No |
| Buy one partner's interest out of several | No, that is an entity interest |
| Buy out all remaining partners, terminating the partnership | Yes, under Rev. Rul. 99-6 |
| Co-owners dividing undivided interests into separate parcels | Often yes, on separate authority |
The other adjacent situation
There is a second, distinct case worth flagging because owners conflate it with the first. Where co-owners of a single property each hold an undivided interest and want to divide it so that each ends up owning an exclusive fee interest in a portion, that division has been treated favorably as an exchange under longstanding rulings. It is not the same transaction as a partner buyout, and the analysis runs differently, but the outcome can also be deferral rather than a taxable event.
What this means in practice
The practical lesson is not that the door is open. It is that "you cannot exchange into something you already own" is a rule with a real seam in it, and the seam happens to sit exactly where a lot of partnership disputes land: one owner wanting to consolidate, others wanting liquidity.
If that is your situation, the sequence matters enormously. The structure has to be designed before anything is signed, because a buyout papered as a straightforward purchase of membership interests is very difficult to recharacterize afterward. This is genuinely technical territory, and Revenue Ruling 99-6 treatment depends on facts your CPA and attorney have to confirm; we are describing the shape of the exception, not advising that it applies to you. What we do is raise it early enough to be useful, which is why partnership structure is part of the first conversation in our exchange process.
Common questions about exchanging into property you already own
Can I 1031 exchange into a property I already own?
Generally no. An exchange requires acquiring replacement property, and adding to something you already hold does not qualify. The main exception involves buying out all remaining partners in a partnership.
Why can I not just buy my partner's LLC interest?
Because partnership and membership interests are not like-kind property. Buying an entity interest is not acquiring real estate, so it cannot be replacement property.
What does Revenue Ruling 99-6 change?
If you acquire all remaining partnership interests, the partnership terminates and you are treated as acquiring the underlying real property rather than entity interests. That is what can make it eligible replacement property.
Does buying out just one of three partners work?
No. The partnership continues to exist, so you have acquired an entity interest rather than real estate. The exception requires acquiring all remaining interests.
Can I use exchange proceeds to pay off debt on a property I own?
No. Paying down existing debt is not acquiring replacement property, and proceeds used that way generally become taxable boot.