1031 Exchange Timeline: Every Deadline That Matters
14 min read · The Basics · Last updated
Reviewed by
Key Takeaways
Two clocks start the moment your property sells: 45 days to identify replacement property, 180 days to close. Miss either deadline — even by one day — and the exchange fails. Plan the timeline before you list.
A 1031 exchange runs on two hard deadlines. Miss either one and the exchange fails, no extensions, no exceptions. This page gives you the exact actions and dates at each stage so you can stay ahead of the calendar.
Timeline at a glance
| Phase | Window | What happens |
|---|---|---|
| Pre-sale planning | Weeks or months before close | Engage QI, run numbers, build replacement-property pipeline |
| Day 0 | Sale closes | Proceeds go to QI; both clocks start |
| Days 1-45 | Identification period | Narrow candidates, submit written ID to QI by midnight on Day 45 |
| Days 46-180 | Closing period | Execute purchase agreements, complete inspections, close on replacement |
| Tax return | Following April (or extension) | File Form 8824 with your return |
Before the sale: planning phase
The best exchanges are decided before Day 0. Three things matter most here:
Engage a qualified intermediary. Your QI must be contracted and the exchange agreement signed before your sale closes. Shopping for a QI on closing day is a crisis.
Run your numbers. Use a 1031 tax savings calculator to estimate capital gains, depreciation recapture, NIIT, and state tax. If the deferral is small relative to the exchange constraints, it may not be worth it.
Build a replacement-property pipeline. Start reviewing markets, talking to brokers, and researching options such as DSTs. If you have three strong candidates on Day 0, the 45-day window becomes confirmation time instead of a scramble.
Also notify your real estate agent, title company, and closing attorney that this is a 1031 exchange. The closing documents must route proceeds to your QI, not to your bank account. And consult a tax advisor to confirm your basis, depreciation history, entity structure, and state tax exposure.
Day 0: the sale closes
The day your relinquished property closes is Day 0. Title transfers, proceeds are disbursed to your QI, and both clocks start:
- 45-day clock for written identification of replacement property
- 180-day clock for closing on replacement property
You receive no money. Funds sit in your QI's escrow account.
Immediately confirm with your QI: exact dollar amount received, the precise Day 45 date, and the precise Day 180 date. Put those dates on every calendar you use.
Days 1-45: identification period
| Sub-window | Priority actions |
|---|---|
| Days 1-15 | Narrow candidates from your pipeline; begin due diligence on top picks; request DST offering materials if applicable; confirm financing pre-approval |
| Days 16-35 | Finalize your identification list by roughly Day 30; make offers and negotiate terms; stay in close contact with your QI |
| Days 36-44 | If you are behind, consider adding a DST as a backup (DSTs can close in 3-5 business days); use all three identification slots strategically under the 3-Property Rule |
| Day 45 | Written identification must be delivered to your QI before midnight; this deadline is absolute |
After Day 45 your list is locked. You cannot add, substitute, or revoke properties. You can only close on what you identified. If you identified nothing, the exchange fails and your QI returns the proceeds.
Common mistake: Identifying properties you have not evaluated just to fill the list. Your identification locks you in. Three bad options in a panic are still bad options.
Days 46-180: closing period
With identification locked, focus shifts to execution.
- Finalize purchase agreements on your chosen replacement property
- Complete inspections, appraisals, and financing
- Coordinate with your QI on fund releases
- Track closing delays; if one identified property falls through, you can close on another from your list
Days 151-175: If you have not closed yet, communicate daily with all parties. If closing looks unlikely by Day 180, evaluate whether a DST you identified as a backup can close faster (typically 3-5 days).
Day 180 hard stop: You must have received (closed on) the replacement property by Day 180, or by the due date of your tax return including extensions, whichever comes first. Being under contract on Day 180 does not count if recording happens on Day 181.
The return-due-date trap: If you sold in November and your return is due April 15, Day 180 may fall after April 15, making April 15 your real deadline. Fix: file Form 4868 for an automatic six-month extension. This pushes the return due date to October 15, preserving the full 180 days.
After closing
Your replacement property inherits the adjusted basis from the relinquished property (with adjustments for boot, exchange expenses, and related factors). This means:
- Your depreciation schedule starts from the carried-over basis, not the new purchase price
- Your future gain calculation ties back to the original property's basis
- If you later sell without exchanging, the entire deferred gain comes due
Report the exchange on IRS Form 8824 with your tax return for the year of the sale. There is no limit on how many times you can exchange; many investors exchange every 5-10 years, compounding equity tax-deferred over decades.
Example timeline: Maria's exchange
March 1 (Day 0): Maria closes on the sale of her San Francisco rental. Proceeds of $870,000 go to her QI.
March 1 - April 10: Maria reviews three multifamily properties she scouted before the sale and evaluates two DST offerings her advisor recommended.
April 10 (Day 40): Maria submits her written identification to her QI: two multifamily properties and one DST.
May 15 (Day 75): Financing approved for Multifamily Property 1. Maria goes under contract.
June 20 (Day 111): A title issue surfaces. Closing is delayed.
July 10 (Day 131): Title issue resolved. Maria closes on the multifamily property. QI releases funds. Exchange complete, 49 days before her Day 180 deadline. If the title issue had not resolved, she could have closed on the DST instead.
Following April: Maria's CPA files Form 8824 with her tax return.
The Bottom Line
The 1031 exchange timeline is unforgiving but manageable with preparation. Build your replacement pipeline before Day 0, treat the 45-day window as confirmation time rather than discovery time, and file a tax extension to protect the full 180 days.
Frequently Asked Questions
Related Articles
1031 Exchange for Beginners: A Plain-English Starting Point
If you sell a rental or investment property at a profit, the IRS lets you skip the tax bill - as long as you reinvest the proceeds into another property of equal or greater value within a set timeframe.
1031 Exchange Examples: 6 Real-World Scenarios
**The investor:** Maria, a W-2 employee in Colorado, bought a single-family rental in Denver for $300,000 eight years ago. It's now worth $480,000. She wants to scale up to a duplex for more cash flow.
1031 Exchange Depreciation Recapture Explained
When you own a rental or investment property, the IRS lets you deduct a portion of the building's cost each year as depreciation. For residential rental property, you spread the cost over 27.5 years. For commercial property, 39 years. These deductions reduce your taxable rental income every year...