The exchange clock starts the day your relinquished property closes. The 45 and 180 day deadlines, what the qualified intermediary does with your proceeds, and why certainty on the sale is what the whole plan hangs on.
By InTym Properties
A 1031 exchange lets an investor sell an investment property and defer the gain by rolling the proceeds into a replacement property. The paperwork that makes it work runs on two hard deadlines, and both of them assume the sale of your current property actually happens. That assumption is where exchanges die. A listing that sits for months, a financed buyer whose loan falls apart in week six, a deal that collapses after inspection: each one turns a tax plan into a scramble.
This post covers the two clocks at a high level, what the qualified intermediary does, why a guaranteed-fast cash close de-risks the relinquished side, and what a missed window costs. One thing up front: nothing here is tax advice, so talk to your QI and tax advisor before acting on anything in this post.
Section 1031 of the Internal Revenue Code imposes two deadlines that start the day your relinquished property transfers to its buyer.
45 days to identify. Within 45 calendar days of closing on the property you are selling, you must identify your replacement property in writing to your qualified intermediary. The standard approach allows up to three candidate properties, with alternate rules for larger lists. The deadline is calendar days, not business days, and it does not move for weekends, holidays, or a deal that was almost done.
180 days to close. The replacement property must actually close within 180 calendar days of the relinquished sale, or by the due date of your tax return for the year of the sale, whichever is earlier, counting filing extensions. The two clocks run at the same time, not one after the other.
Notice where the pressure sits. The clocks start when your current property closes, so every week a listing sits unsold is a week the exchange has not started. That sounds like breathing room until you price the rest of the plan: you cannot seriously shop a replacement property with no proceeds in the pipeline or promise its seller a closing date you do not control.
The mechanic that makes the deferral work is that you never touch the money. A qualified intermediary, often called a QI or exchange accommodator, is an independent party who holds the sale proceeds between the two transactions. At a high level: the exchange documents get signed before or at the relinquished closing, the buyer's funds go to the QI rather than to you, and the QI later applies them to the replacement purchase.
Two consequences matter. First, the QI must be engaged before the relinquished property closes: you cannot opt into an exchange after the proceeds hit your account. Second, constructive receipt is the trap: if the money is yours to grab, even for a moment, the IRS treats it as received. Your QI and tax advisor own the details this summary does not cover.
The failure mode is not exotic. An investor lists a duplex or a small apartment building, gets a financed offer in week three, and loses it in week seven when the buyer's commercial loan dies in committee or the appraisal comes in light. Now the listing is stale, the replacement property the investor wanted is gone, and the plan resets to zero with months burned.
On five units or more your buyer needs a commercial loan: committee approval, an income-approach appraisal, a due diligence period that commonly runs 30 to 60 days, per the apartment building post. On 2 to 4 unit buildings the financing is residential, but the buyer pool is investors and the retail machinery, showings across occupied units, re-trades, appraisal gaps, still applies. The duplex and fourplex post covers that version.
A slow listing is not just slow. For an exchanger it is a plan with a hole in it: every downstream deadline assumes an upstream closing that has not happened.
A direct cash sale attacks exactly the point of failure: certainty on the relinquished side.
Speed cuts one way that is worth naming honestly: a fast close starts your 45-day clock sooner. That is a feature when your replacement search is ready and a problem when it is not. Sequence the sale the way your QI tells you to.
Miss the 45-day identification or the 180-day closing deadline and the exchange generally fails. The proceeds your QI is holding come back to you, and the gain you meant to defer gets recognized instead. At a high level, what dies is the deferral, not the sale.
There is a second concept worth knowing by name: boot, any value received in the exchange that is not like-kind property, such as cash pulled from the proceeds. Boot is generally taxable to the extent of gain even when the rest of the exchange succeeds. How much, and under what facts, is your tax advisor's question, not a blog post's.
On multifamily, InTym Properties either closes as principal with its own funds or assigns the purchase contract to a vetted end buyer, disclosed in writing before you sign, with the same price and terms either way and a closing through a licensed title company, which is also where your QI's exchange documents get coordinated. The sell multifamily page covers the 2 to 20 unit range.
For the other side of the exchange: if you are hunting a replacement property, the InTym buyer list surfaces off-market multifamily deals with the numbers attached, contract price, rehab estimate, ARV, projected rents. Inside a 45-day identification window, deal flow that shows the math up front is what the clock rewards.
A 1031 exchange is only as strong as the sale it starts from. The 45 and 180 day deadlines assume the relinquished property closes on schedule, and a financed, listed sale is the least certain way to make that assumption true. A direct cash sale trades some price for a closing date you can plan around. Talk to your qualified intermediary and tax advisor before you act: InTym Properties buys the property, but the exchange is yours, and none of this is tax advice.
Selling a rental or small multifamily property into a 1031 clock? Call or text (650) 540-1854. InTym Properties writes offers on 2 to 20 unit buildings, occupied or vacant, in Broward County, south Idaho, and nationwide, usually within 48 hours.
Yes. Section 1031 cares about what happens to the proceeds and what you buy next, not who buys the relinquished property. A direct sale works like any other relinquished sale as long as your qualified intermediary is engaged before closing and holds the proceeds. Confirm the structure with your QI and your tax advisor before you sign anything.
The day title to your relinquished property transfers to the buyer. Within 45 calendar days you identify replacement property in writing to your qualified intermediary; within 180 days, or by your tax return due date if earlier, the replacement purchase must close. The two clocks run concurrently and are measured in calendar days, with no extensions for weekends or stalled deals.
If the relinquished sale never closes, the exchange clock never starts: inconvenient, but not fatal. The dangerous version is a planned exchange where the sale collapses late, after you have lined up a replacement property or promised a seller a closing date. Certainty on the relinquished side is what protects the rest of the plan.
Boot is any value you receive in an exchange that is not like-kind property: cash pulled out of the proceeds, or a reduction in debt the replacement purchase does not replace. Boot is generally taxable to the extent of your gain even when the rest of the exchange qualifies. The math is fact-specific, so run it past your tax advisor, not a blog post.
Written offer usually within 48 hours, signed by InTym Properties, every number shown. No repairs, no fees, no obligation.
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