The 1031 exchange timeline
Everything in a 1031 exchange is recoverable except the calendar. Here is exactly what happens, and when.
The short answer
Two deadlines govern every 1031 exchange, and both start on the day your sale closes. You have 45 calendar days to identify replacement property in writing, and 180 calendar days to close on it. They run at the same time, so on day 45 you have 135 days left, not 180.
Weekends and holidays count. There are no extensions except for federally declared disasters. And the whole thing only works if a qualified intermediary was in place before your sale closed.
Key facts at a glance
- Day 0
- The closing of your relinquished property
- Day 45
- Written identification due to your intermediary by midnight
- Day 180
- Purchase of replacement property must be complete
- Hard stop
- The earlier of day 180 or your tax return due date, including extensions
- Day counting
- Calendar days, including weekends and holidays
- Extensions
- Only via IRS disaster relief notices
- Point of no return
- Receiving the sale proceeds yourself, at any time
The full timeline, stage by stage
Day 0
The setup phase, and the only truly unforgiving moment
Before your sale closes, three things must happen. You must decide you want an exchange. You must engage a qualified intermediary and sign their exchange agreement. And your purchase agreement should include cooperation language telling the buyer you intend to complete a 1031 exchange.
If escrow funds to you first, the exchange is over. Not delayed, not complicated, over. The money must go directly from escrow to the intermediary. This is called avoiding actual and constructive receipt, and it is the rule that no amount of good paperwork afterward can fix.
Setting up an intermediary usually takes one to two business days. Do it as soon as you have an accepted offer, not the week of closing. Eleven questions to ask before you pick one →
Your sale closes
The deed transfers. Escrow wires the net proceeds to the intermediary's account. You receive a closing statement and, from the intermediary, confirmation of the funds and a written notice of your two deadline dates. Put both on your calendar immediately, and give them to your CPA and your advisor the same week.
1–20
The productive window nobody uses well
This is when the real work should happen: touring properties, reviewing DST offering documents, running numbers, and getting a lender's term sheet if you plan to borrow. Most people spend these three weeks doing nothing, then compress everything into the final ten days. That is where bad decisions get made.
If you were smart, this work started before you closed. Nothing prevents you from lining up replacement candidates while your sale is still in escrow.
21–40
Narrow down and get under contract
Aim to have your primary choice under contract, with inspections underway, well before day 45. If you are buying a building, this is also when the financing needs to be real rather than hoped for. Lender delays are the most common cause of a failed day-180 closing.
Written identification is due by midnight
You must deliver a signed written document to your qualified intermediary that unambiguously describes each property you might acquire. Street address or legal description. For a DST, the name of the trust and the dollar amount or percentage interest.
You may revoke and re-file as many times as you want up to the deadline. After midnight, the list is frozen. You can only buy what is on it, and if every property on it falls through, the exchange fails and the whole tax bill comes due.
46–170
Due diligence and financing
Appraisals, inspections, title work, loan underwriting, and, for a DST, the subscription documents. If your primary deal starts to wobble, this is the moment to pivot to a backup identification. Do not wait until day 175 hoping it recovers.
The purchase must be complete
The intermediary wires funds directly to your closing. Title must transfer on or before day 180. Any exchange funds left over come back to you and are taxable as boot.
Remember the tax return trap. Your exchange period ends on the earlier of day 180 or the due date of your return for the year of the sale. Sell in October and your April deadline arrives around day 170. Filing an extension restores the full 180 days.
season
Report the exchange
Your CPA files IRS Form 8824 with your return for the year of the sale, showing the properties, the dates, and the deferred gain. California owners who exchange into out-of-state property file FTB Form 3840 with that return and every year afterward until the gain is recognized. Missing that annual filing can cause California to accelerate the tax.
Five calendar traps that catch experienced people
| Trap | What goes wrong | How to avoid it |
|---|---|---|
| Thinking the clocks are sequential | Owner believes they have 45 days to identify and then 180 more to close. They have 135. | Write both dates on a single calendar the day you close. |
| Late-year sales | A November sale means the April 15 return deadline cuts the exchange period to about 150 days. | File an extension. Decide this in December, not April. |
| Only naming one property | The deal dies on day 120 and there is nothing else on the list. Full tax bill. | Use all three identification slots. Make at least one a DST that can close in days. |
| Vague identification | “A multifamily property in Phoenix” is not an identification. The IRS requires unambiguous description. | Use street addresses, legal descriptions, or exact trust names and dollar amounts. |
| Signing before the intermediary exists | Escrow funds to the seller directly. Exchange is impossible. | Engage the intermediary at the accepted-offer stage, not at closing. |
Call today. A Delaware Statutory Trust can typically be identified and closed within a week because the property is already owned and the documents are already drafted. That speed is exactly why DSTs are the standard rescue for an exchange that is running out of runway. Waiting three more days genuinely reduces your options.
What if you found the replacement property first?
It happens often. The perfect replacement appears before you have sold anything. A reverse exchange handles this. Under the IRS safe harbor issued in 2000, an exchange accommodation titleholder buys and holds the replacement property while you sell your existing one, then transfers it to you.
The same 45 and 180 day clocks apply, measured from the date the accommodation titleholder takes title. Reverse exchanges cost several thousand dollars more than a standard exchange, require a lender willing to work with the structure, and usually require you to fund the purchase with cash or a bridge loan. They work well when the situation calls for it, and they are not something to attempt without experienced help.
The full guide to reverse exchanges →
The Before You Sign PDF has blank fields for your day 0, day 45 and day 180 dates, plus the full four-phase checklist. Free, no email required.
The one thing to remember
Every other part of a 1031 exchange can be negotiated, restructured, or fixed. The calendar cannot. If you are anywhere near a sale, the single most valuable thing you can do this week is have a conversation before you sign, not after.
Where are you on the calendar right now?
Whether you are three months from listing or on day 32, tell us where you stand and we will tell you exactly what has to happen next and by when.
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