1031 Exchange Deadline Extensions for Disasters (And Why Weekends Don't Matter)

The 45-day and 180-day deadlines in a 1031 exchange are counted in calendar days. Weekends do not extend them. Holidays do not extend them. If Day 45 falls on a Saturday, your identification is due Saturday.

The standard rule

Count 45 calendar days from the day after you close on the relinquished property. That is your identification deadline. Count 180 calendar days from that same starting point. That is your closing deadline. Both are absolute.

If Day 180 falls on Christmas, your closing deadline is Christmas. The IRS uses calendar days, not business days.

There is a second constraint on the closing deadline: it cannot be later than the due date of your tax return (with extensions) for the year of the sale. If you sell in October and your return is due April 15 without an extension, April 15 is your effective deadline. File Form 4868 (automatic six-month extension) to protect the full 180-day window.

Disaster relief: rare and specifically announced

The only circumstance under which the IRS extends 1031 deadlines is a federally declared disaster affecting the area where your property is located. This means a Presidential disaster declaration, not a local event.

When disaster relief applies, the IRS publishes specific guidance that states:

• Which counties or zip codes are covered
• Which taxpayers qualify (typically those whose property is in the covered area)
• How many days the deadline is extended (usually 30 days, sometimes more)
• The specific effective dates

Historical examples include Hurricane Katrina (2005), Hurricane Sandy (2012), and certain California wildfires. These are rare events. Most 1031 exchanges are never affected by disaster relief.

How to verify whether relief applies to you

1. Check the IRS website for published disaster relief guidance
2. Confirm your property is in a covered area (by county or zip code)
3. Look for guidance that specifically addresses 1031 exchange deadlines
4. Confirm the extended deadline dates
5. Verify with your QI and CPA

Do not assume relief applies. Plan for the standard deadlines and treat any relief as a bonus.

Form 8824 filing deadline

The deadline for filing Form 8824 with your tax return is separate from the exchange deadlines. Form 8824 is due with your federal return (typically April 15 of the year following the sale). This deadline can be extended by filing Form 4868. It does not affect whether your exchange met the 45-day and 180-day requirements.

Practical timeline management

• On closing day, confirm your exact deadline dates with your QI in writing
• Plan to identify by Day 40 (five-day buffer)
• Plan to close by Day 160 (twenty-day buffer)
• Set calendar reminders at Day 30, Day 40, Day 44, Day 150, and Day 170
• File Form 4868 automatically in any exchange year

The cost of missing a deadline by one day is the entire 1031 deferral. That is tens of thousands of dollars on a typical exchange. Be disciplined, count your days precisely, and execute with time to spare.