1031 Exchange

1031 Property Identification Rules: The 3-Property, 200% and 95% Rules

The three identification rules are alternatives, not a checklist. Up to three properties has no value cap, four or more invokes the 200% rule, and the 95% exception is a narrow rescue. Here is how the waterfall works.

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By Muhammad Haroon · Developer & Researcher, Indie Tax Stack
Educational content only. This article reflects 2026 tax law and is for informational purposes. It is not professional tax, legal, or financial advice. Consult a licensed tax professional before making tax decisions.

The single biggest misunderstanding about 1031 identification is the idea that you have to satisfy all three rules at once. You do not. The 3-property rule, the 200% rule, and the 95% exception are alternatives. You only ever land on one of them, and which one depends entirely on how many properties you put on your written list.

A lot of calculators and explainer pages get this wrong. They show three green checkmarks side by side, as if a valid identification has to clear every rule simultaneously. That is not how the like-kind exchange rules work. The rules form a waterfall. You count how many properties you are identifying, and the count tells you which single test you are subject to.

So before anything else, count your properties. Everything below follows from that one number.

The waterfall, in one breath

Here is the whole thing before we slow down and work through each rule.

If you identify one, two, or three properties, the 3-property rule applies and you are done. Value does not matter. If you identify four or more, the 3-property rule is off the table and you fall to the 200% rule, which caps the combined value of your list. If your four-plus list also blows past that 200% cap, you have one last option: the 95% exception, which is hard to satisfy and rarely chosen on purpose.

You can plug your relinquished value and your candidate list into the 1031 exchange calculator and its “Property Identification Rules” panel will show you which of these three you are subject to, instead of pretending all three apply at once.

The 3-property rule

This is the one almost every investor uses. You may identify up to three replacement properties, and there is no limit on their combined value. None. You could sell a modest duplex and identify three replacement candidates that together are worth ten times what you sold, and the identification is still valid, because you named three or fewer.

That is the entire rule. Three or fewer, any value, valid.

Worked example: you sell a property for $800,000 and identify three replacement candidates. Their combined value can be anything. It does not have to relate to your $800,000 sale at all, because you identified three properties, which is within the limit. No cap, no math, nothing else to check.

Most exchanges never need to look past this rule. You typically want one replacement property, you list a backup or two in case your first choice falls through, and that is three. The value cap only enters the picture when you go wider than three, which most people never do.

The 200% rule

The 200% rule only comes into play if you identify four or more properties. The moment you put a fourth property on the list, you lose the no-cap treatment and you take on a value limit instead.

The limit is this: the combined fair market value of every property you identify cannot exceed 200% of the fair market value of the property you sold. Twice what you relinquished, total, across the whole list.

Worked example: you sold for $800,000, so your 200% cap is $1,600,000. You identify four properties worth $400,000, $400,000, $400,000, and $300,000. Add them up and the list is $1,500,000. That is under the $1,600,000 ceiling, so the 200% rule is satisfied and the identification holds. You can identify a dozen properties if you want, as long as the running total stays under twice your sale price.

Notice what changed. With three properties you ignored value entirely. With four, value is the only thing that matters, and the property count stops mattering. People sometimes go to four or five candidates because they are buying into a portfolio or a syndicated deal with several parcels, and the 200% cap is what keeps that list inside the rules.

The 95% exception

Now the narrow case. You identified four or more properties, and your combined value went over the 200% cap. Your identification is not automatically dead, but the only thing that can save it is the 95% exception, and it is demanding.

The rule: if your four-plus list exceeds 200% of your sale price, the identification is valid only if you actually acquire at least 95% of the total fair market value you identified, by your 180-day deadline. Not 95% of the cap. 95% of everything you listed.

Worked example: you sold for $800,000, so your cap is $1,600,000. You identify four properties worth $800,000 each, a combined $3,200,000. That is double the cap, far past 200%, so the 200% rule cannot save you. The 95% exception is your only path, and it requires you to close on at least 95% of the $3,200,000 you identified, which is $3,040,000, before day 180.

Read that again, because it is the catch. You identified $3.2 million of property and you have to actually buy almost all of it. If one of those four deals falls through and you end up closing on only three of the four, you are at $2,400,000, which is 75% of the list, well short of 95%. At that point the entire identification fails. Not just the deal that fell apart. Every property on the list is treated as never validly identified, and the whole exchange collapses.

That is why the 95% exception is a rescue, not a strategy. You should almost never set out to use it. If you find yourself over the 200% cap, the right move is usually to trim the list back under the cap or down to three properties, not to bet your exchange on closing 95% of an oversized list inside the 180-day window.

The part that applies no matter which rule you use

The waterfall decides which value test you face. It does not change how you make the identification in the first place, and that part is rigid.

The identification must be in writing, signed by you, and delivered to your qualified intermediary (or another party to the exchange who is not a disqualified person) before midnight of day 45. Each property has to be described unambiguously, by street address or legal description. A vague “a warehouse near the airport” does not count. The full timing mechanics, including the fact that weekends and holidays do not pause the count, are in the 45-day and 180-day deadlines guide.

So the complete sequence is: write your list, count the properties, apply the one rule that count triggers, sign it, and deliver it to your intermediary by day 45.

What to do with this

Keep your list at three or fewer if you possibly can. That keeps you in the simplest rule with no value math and no exposure to the 95% trap. If your deal genuinely needs four or more properties, do the 200% arithmetic before you sign, and keep the combined value under twice your sale price. Treat the 95% exception as a sign you have over-identified, not as a tool, because falling one closing short of 95% voids the entire list.

The rules themselves are clean once you stop thinking of them as a checklist. Count first. The number tells you the rule.

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Frequently Asked Questions

Can I identify more than three properties?

Yes, but it changes the rule you are subject to. Up to three properties has no value cap. The moment you identify a fourth, the 3-property rule no longer applies and you fall to the 200% rule, which caps the combined value of your whole list at twice your sale price.

What is the 200% rule?

It applies only when you identify four or more properties. The combined fair market value of everything on your list cannot exceed 200% of the value of the property you sold. If you relinquished an $800,000 property, your entire list must total under $1,600,000, no matter how many properties are on it.

What is the 95% exception?

It is a narrow rescue for a list that identifies four or more properties and exceeds the 200% cap. The identification survives only if you actually acquire at least 95% of the total value you identified by your 180-day deadline. Fall short of 95% and every property on the list is treated as never identified, so the exchange fails.

Do I have to identify in writing?

Yes. The identification must be in writing, signed by you, and delivered to your qualified intermediary or another non-disqualified party to the exchange before midnight of day 45. Each property has to be described clearly, by street address or legal description.

Do all three identification rules apply at the same time?

No. They are alternatives, not a checklist. You count the properties on your list, and the count determines which single rule applies: three or fewer means the 3-property rule, four or more means the 200% rule, and over the 200% cap leaves only the 95% exception.

Run the numbers yourself

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