Why It Matters
You need the 200% Rule when identifying more than three replacement properties — something the standard Three-Property Rule won't allow. If you want to shortlist five properties across two markets while you negotiate, this is the rule that keeps your exchange valid. The trade-off is a value cap: the combined FMV of everything you identify must stay at or below twice what you sold.
At a Glance
- What it is: One of three identification methods under IRC §1031 — unlimited properties allowed, but combined FMV capped at 200% of the relinquished sale price
- Primary use: When you need more than three backup properties during the 45-day identification window
- Value formula: Max Identified FMV = Relinquished Property FMV × 200%
- Key rule: Only one identification method can be used per exchange — you cannot combine the Three-Property Rule and the 200% Rule in the same transaction
- Fallback safety net: If you violate this rule, the 95% Exception may still rescue the exchange — but only if you close on at least 95% of the total identified FMV
Max Identified FMV = Relinquished Property FMV × 200%
How It Works
The identification methods in context. Treasury Regulation §1.1031(k)-1(c) gives exchangers three ways to identify replacement property during the identification period. The Three-Property Rule is the most common — up to three properties, no value ceiling. The 200% Rule trades that property-count limit for a value limit. The third option, the 95% Exception, is rarely used because it requires actually closing on nearly everything you identify. Most investors choose between the first two based on how many backup properties they need.
Running the 200% calculation. The cap is straightforward: take your relinquished property's net sale price (the FMV at close), multiply by two, and that's your total identification budget. If you sold a fourplex for $847,000, your aggregate identified FMV ceiling is $1,694,000. You can name four properties at $400,000 each ($1,600,000 total — under the cap), but adding a fifth at $300,000 would push you to $1,900,000 and breach the rule. Importantly, you're not required to appraise every candidate property — good-faith FMV estimates suffice — but you do need a reasonable basis for each figure you use. Your qualified intermediary will log the written identification; the IRS can scrutinize those values if the exchange is challenged.
Where the 200% Rule fits in a real decision. Investors reach for the 200% Rule when they want five or six candidates instead of three — typically when properties span multiple markets or values are uncertain. The risk is tracking the running total: crossing the cap mid-identification without revoking a prior property is the most common error. Written identifications can be revised before the 45-day deadline, but only if you're watching the math. Note that boot is a separate issue — even a clean exchange generates a taxable gain if you receive cash or non-like-kind property at closing.
Real-World Example
Sandra owns a twelve-unit apartment building in Phoenix that she sells for $1,193,000. She wants to exchange into smaller residential properties and has identified six candidates across Tucson, Albuquerque, and Denver, priced between $180,000 and $260,000. Three properties is not enough flexibility — two of her top choices are in competing bidding situations.
She uses the 200% Rule. Her cap: $1,193,000 × 2 = $2,386,000. She lists all six properties, with combined FMV estimates totaling $1,374,000 — well inside the limit. During the exchange period, two of her Tucson candidates fall through, but her Albuquerque and Denver picks close cleanly. Because she had valid backup options within a legal identification, the exchange clears. Had she tried to identify all six under the Three-Property Rule, the exchange would have been invalid from day one.
Pros & Cons
- Allows identification of four or more replacement properties, giving you real flexibility to pursue competitive markets simultaneously
- No upper limit on the number of properties — you can identify ten candidates if their combined FMV stays under the cap
- Particularly valuable when selling a higher-value asset and targeting several lower-value replacements, where the 200% cap is easy to satisfy
- Written identifications can be revised within the 45-day window, so you can add and remove candidates as negotiations evolve
- Works cleanly with the exchange rules framework — straightforward to document and explain to your QI
- Requires tracking the aggregate FMV of every identified property — one expensive addition can blow the cap and invalidate the identification
- FMV estimates carry some subjectivity; if the IRS questions the exchange, aggressive underestimates of property values can create compliance risk
- Any number of identified properties must still be formally revoked in writing if you change your mind — verbal retraction has no legal standing
- The 200% Rule cannot be combined with the Three-Property Rule in a single exchange — choosing this method locks you out of the unlimited-value three-property approach
- Identification still expires at 45 days regardless — the added flexibility doesn't extend your deadline
Watch Out
- Running total risk: Recalculate the aggregate FMV every time you add a property. Crossing the 200% cap — even unintentionally — renders the identification invalid unless you revoke a property in writing before the deadline.
- FMV isn't the purchase price: Use fair market value, not the asking price or your target offer. If a seller is listing above market, identify based on actual market value. Overstating FMV to stay under the cap is not a valid strategy — it's the opposite problem.
- 95% Exception is not a reliable backstop: If you identify six properties and violate the 200% Rule, the 95% Exception only saves you if you close on 95% of the total identified FMV. If even one property falls through, you likely miss that threshold and the exchange fails.
- One rule per exchange: You cannot use the Three-Property Rule for some properties and the 200% Rule for others in the same exchange. Pick one method at the start and apply it to all identifications.
Ask an Investor
The Takeaway
The 200% Rule solves a real problem: the Three-Property Rule doesn't give you enough candidates when you're chasing deals in multiple markets or navigating competitive bidding. The trade-off — a hard value cap at twice your relinquished FMV — is manageable if you track the running total carefully. Work with a qualified intermediary who will document your identification in writing, confirm the value estimates, and flag the cap before you overshoot it. Get the math right and you can pursue as many candidates as you need.