Most exchanges that fail do not fail on the big things. The property qualified. The clock was met. The intermediary did their job. What sank it was a line of small print on the deed: the name the property was held in on the way out did not match the name it came back in.
We have written about the same-taxpayer rule as a principle. This is the practical version of it, the one that comes up in actual closings: how you are vested, and which changes to that vesting the IRS will look straight through.
The rule, stated plainly
The taxpayer who sells the relinquished property must be the taxpayer who buys the replacement. Not a similar party. Not a related one. The same one.
The word doing the work there is taxpayer, not name. Some entities are treated as separate taxpayers with their own returns and identification numbers. Others are ignored entirely for tax purposes, so the IRS looks through the wrapper to the person behind it. That single distinction determines almost every vesting question we get.
What the IRS looks through
These are disregarded entities. They exist for liability or estate purposes, but for federal income tax the IRS sees the individual, who reports on their own return under their own taxpayer identification number rather than a separate EIN for the entity.
- A single-member LLC. You own a property personally and want the replacement held in an LLC you solely own, or the reverse. Generally fine. The LLC is disregarded, so the same taxpayer is on both ends. This is the most common structuring move in exchanges, and it is genuinely useful: you get liability separation without disturbing the exchange.
- A revocable living trust. Because you can revoke it and retain control, the IRS treats the trust and you as the same taxpayer. Property held in your living trust can generally be exchanged without a vesting problem, which matters because so many owners hold real estate in one for estate reasons.
The underlying idea is what practitioners call continuity of investment: it is still your investment, still your gain, still your return. The wrapper changed; the taxpayer did not.
What the IRS treats as somebody else
Here is where exchanges break.
- A multi-member LLC or partnership. This is a separate taxpayer that files its own return. The partnership can exchange, but the partners cannot individually peel off their shares and exchange separately without planning, which is the whole reason drop and swap exists as a strategy and why it needs time to season.
- A corporation, S or C. A separate taxpayer. Property held by the corporation exchanges as the corporation, not as you.
- Adding or removing people. Selling as yourself and taking title with a child, a sibling, or a new business partner introduces a taxpayer who did not sell. That is a different party on the replacement side.
| Vesting change | Same taxpayer? | Typical outcome |
|---|---|---|
| You → your single-member LLC | Yes, disregarded | Generally works |
| You → your revocable living trust | Yes, disregarded | Generally works |
| Your living trust → you | Yes, disregarded | Generally works |
| You → multi-member LLC or partnership | No, separate taxpayer | Problem, needs planning |
| You → a corporation | No, separate taxpayer | Problem |
| You → you plus a new co-owner | Partly, new party added | Problem for the added share |
The situations that need real thought
A few recur often enough to name:
- Married couples. Whether spouses can shift vesting between themselves depends on state law, community property rules, and how they file. It is usually solvable and it is not automatic.
- A lender demanding a new entity. Financing on the replacement sometimes requires a specific ownership structure. When that entity is not disregarded, you have a conflict between the loan and the exchange, and it needs to be resolved before closing rather than at the table.
- A partner who wants out. Handle it early. The holding period and intent questions that follow a restructuring are exactly why this cannot be done the week before a sale.
- Death or divorce mid-transaction. Both change who the taxpayer is, and both are covered in more depth in our pieces on dying mid-exchange and divorce.
The practical instruction
Look at your deed before you list, not after you are in escrow. Confirm exactly how the property is vested today, decide how the replacement should be held, and have your CPA and attorney confirm that the two are the same taxpayer in the eyes of the IRS. If they are not, there is usually a way to fix it, but only with lead time.
This is genuinely a legal and tax determination rather than a rule of thumb, and entity and trust structures vary enough that your CPA and attorney should confirm your specific situation. Checking vesting is one of the first things we do when we take on an exchange, precisely because it is cheap to fix in week one and nearly impossible to fix in week twenty, which is how our exchange process is sequenced.
Common questions about vesting in a 1031 exchange
Can I sell personally and buy through an LLC?
Generally yes, if it is a single-member LLC that you solely own. It is a disregarded entity for tax purposes, so the same taxpayer is on both sides of the exchange.
Does a living trust break the exchange?
Typically no. A revocable living trust is a disregarded entity because you retain control and can revoke it, so the IRS treats you and the trust as the same taxpayer.
Can my partnership let each partner exchange separately?
Not directly. A multi-member LLC or partnership is its own taxpayer. Partners wanting to go separate ways generally need a restructuring, commonly a drop and swap, planned well in advance.
Can I add my children to the title on the replacement property?
Adding a new owner introduces a taxpayer who did not sell the relinquished property, which creates a problem for that portion. Estate goals are better handled separately from the exchange.
When should I check how I am vested?
Before the property is listed. Vesting problems are straightforward to solve with lead time and very difficult to solve once the relinquished property has closed.