How to Build a 1031 Exchange Timeline
To build a 1031 exchange timeline, start from your relinquished property closing date, mark day 45 (identification deadline) and day 180 (closing deadline), then set checkpoint dates at days 14, 30, 40, 120, and 150 for ongoing task cadence.
Before you start
A 1031 exchange has two hard deadlines (45 and 180) and a lot of work that has to happen in between. A well-structured timeline keeps you from waking up on day 43 panicking. Here's the template.
What you need
- Relinquished property closing date
- Calendar with reminder capability
- QI contact info
Steps
- Step 01
Lock your Day 1 — the day after downleg closing
Day 1 is the day after the relinquished property closes. Not closing day itself. Put this date in your calendar with the clock-started marker.
- Step 02
Compute and mark Day 45
Day 45 is 45 calendar days after Day 1. Mark it in your calendar with 7-day, 3-day, and 1-day reminders. This is your written identification deadline.
- Step 03
Compute and mark Day 180
Day 180 is 180 calendar days after Day 1. Mark it with 14-day, 7-day, and 3-day reminders. This is your replacement property closing deadline (or your tax return due date including extensions, whichever is earlier — file an extension if the downleg closed in Q4 to preserve the full 180 days).
- Step 04
Set Day 14 — primary candidates under LOI
By day 14, your primary and secondary replacement candidates should be under LOI or in active diligence. If not, accelerate the search.
- Step 05
Set Day 30 — DST backup seriously considered
If you don't have an LOI on a primary property by day 30, seriously evaluate DST options. Most DSTs can close within the remaining 150-day window, but shortlist them now.
- Step 06
Set Day 40 — identification form drafted
By day 40, your identification form should be drafted, reviewed with your attorney, and ready for signature. Don't wait until day 44.
- Step 07
Set Day 120 — replacement property under contract
By day 120, at least one identified property should be under purchase contract with due diligence and financing active. This leaves 60 days to close — adequate buffer for closing complications.
- Step 08
Set Day 150 — target closing (with buffer)
Target the actual closing on day 150, not day 180. The 30-day buffer protects against wire timing, title issues, and inevitable delays.
- Step 09
Set Day 180 — final deadline
Day 180 is a hard stop. If you haven't closed, the exchange fails. Build in the 30-day buffer earlier to avoid the day-180 scramble.
Common mistakes
- Forgetting that Day 1 is the day after closing (not closing day)
- Missing the tax-return-due-date override on the 180-day window
- Pushing the day-45 identification to day 44 or 45 with no buffer
- Targeting day 180 for closing instead of day 150 with buffer
- Not filing Form 4868 for an extension on a Q4 downleg
Frequently asked questions
What if Day 45 or Day 180 falls on a weekend or holiday?
The IRS does not extend 1031 deadlines for weekends or holidays. If Day 45 is a Sunday, it's still Sunday. Identification must be delivered by midnight of that day regardless.
Can I extend the 180-day deadline?
No. The 180-day deadline is statutory — the IRS does not extend it. The only situations where the deadline moves are federally declared disasters (the IRS occasionally extends deadlines for affected taxpayers) or when your tax return due date falls before day 180 (filing an extension preserves the full 180).
What's the best way to track exchange deadlines?
Multiple redundant systems: calendar with pre-deadline reminders, a written tracker shared with your QI, and confirmation from your CPA. Several services offer 1031-specific timeline tracking tools. Our own timeline calculator is at /tools/1031-timeline.