1031 Exchange Timeline
45 Days to Identify. 180 Days to Close. No Exceptions.
The 1031 exchange timeline is governed by two absolute IRS deadlines. Missing either one disqualifies the entire exchange and triggers full capital gains tax liability. This guide walks you through every step, every rule, and every deadline you need to know.
What is the 1031 exchange timeline?
A 1031 exchange has two mandatory IRS deadlines. First, you must identify your replacement property in writing within 45 calendar days of closing on your relinquished property. Second, you must close on the replacement property within 180 calendar days of that same closing date (or by your federal tax return due date, whichever comes first). Both clocks start simultaneously on Day 0. There are no extensions for market conditions or financing delays.
Step-by-Step Exchange Timeline
Every 1031 exchange follows the same sequence. Here is what happens at each stage, what is required of you, and what your qualified intermediary handles.
Relinquished Property Closes
The exchange clock starts the moment your relinquished property closes. The qualified intermediary receives the sale proceeds directly from the closing agent and holds them in a segregated, interest-bearing exchange account. You cannot touch the funds at any point during the exchange without disqualifying it.
QI receives proceeds at closing. Clock starts immediately.
- Proceeds go directly to QI — never to you
- Exchange agreement must be in place before closing
- QI holds funds in a segregated account
- Both the 45-day and 180-day clocks start now
Identify Your Replacement Property
You have exactly 45 calendar days from closing to identify your replacement property in writing. The identification must be unambiguous — a legal description, street address, or assessor's parcel number. The written identification must be signed and delivered to the QI or another permitted party before midnight on Day 45.
Written ID required by midnight on Day 45. No extensions.
- Must be in writing and signed
- Delivered to QI or permitted party by midnight Day 45
- Legal description, street address, or APN required
- Three identification rules apply (see below)
Close on Your Replacement Property
You must close on your identified replacement property by Day 180, or by the due date of your federal tax return for the year of the sale (including extensions), whichever comes first. The 45-day and 180-day periods run concurrently — the 180-day clock starts on Day 0, not Day 45.
Close by Day 180 or tax return due date — whichever is earlier.
- 180-day clock starts on Day 0 (not Day 45)
- Must close on an identified property only
- Tax return due date may shorten your window
- Consider filing an extension to preserve the full 180 days
The Three Identification Rules
The IRS allows three methods for identifying replacement properties. You must comply with at least one of these rules. The Three-Property Rule is used in the vast majority of exchanges.
Three-Property Rule
Most common
Identify up to three replacement properties of any value. You only need to close on one. This is the most flexible and most commonly used rule.
Example:
Identify a $500K property, a $750K property, and a $1.2M property — close on any one.
200% Rule
For broader searches
Identify more than three properties, as long as the total combined fair market value does not exceed 200% of the relinquished property's sale price.
Example:
Sold for $500K — can identify any number of properties totaling no more than $1M.
95% Rule
Rarely used
Identify any number of properties at any value, but you must close on at least 95% of the total identified value. Rarely used due to the acquisition requirement.
Example:
Identify $3M in properties — must close on at least $2.85M worth.
How the 45 and 180 Days Overlap
45-Day Identification Period
Runs from Day 0 to Day 45. You must submit written identification of your replacement property before midnight on Day 45. Calendar days — weekends and holidays count.
180-Day Exchange Period
Runs from Day 0 to Day 180 — concurrently with the 45-day period. You must close on an identified property within this window. Tax return due date may shorten this period.
Critical Warnings — Common Mistakes That Disqualify Exchanges
No Extensions for Market Conditions
The IRS does not grant extensions to the 45-day or 180-day deadlines due to market conditions, difficulty finding property, or financing delays. The only exceptions are federally declared disasters under Revenue Procedure 2018-58.
Tax Return Due Date Can Shorten Your Window
If your tax return is due before Day 180, the exchange period ends at the tax return due date. File for an extension (Form 4868) to preserve the full 180-day window. This is a commonly missed deadline.
Constructive Receipt Disqualifies the Exchange
If you receive or constructively receive the exchange proceeds at any point, the exchange is disqualified. The QI must hold the funds in a segregated account with restricted access throughout the exchange period.
Identification Must Be Unambiguous
Vague property descriptions are rejected. The identification must include the legal description, street address, or assessor's parcel number. 'A property in Denver' does not qualify.
Don't Navigate These Deadlines Alone
Attorney Steve Wolterman, CES® has guided investors through hundreds of exchanges. When your exchange is under contract and the clock is running, you need a qualified intermediary who knows the rules and manages your timeline from Day 0 to closing.
Watch
1031 Exchange Timeline in 60 Seconds
A quick visual overview of the 45-day and 180-day deadlines, straight from attorney Steve Wolterman.
Frequently Asked Questions
Common questions about the 1031 exchange timeline, deadlines, and identification rules.
Free Resource
Learn the Timeline Before Your Clock Starts
Our free training covers the 45-day and 180-day rules, identification strategies, and common mistakes that disqualify exchanges. Watch it now.
Ready to Start Your Exchange?
The clock starts at closing. Contact us before your property goes under contract so your exchange is structured correctly from Day 0.
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