1031 Exchange Calculator 
45 & 180 Day Deadlines

Timing is one of the most important parts of a successful 1031 exchange.

Use our free calculator to determine your 45-day identification deadline and 180-day exchange deadline. Staying on track with these dates helps protect your tax deferral and ensures you can identify and acquire the right replacement property.

The 45-Day Identification Period

After the sale of your property, you have 45 calendar days to either receive your replacement property or submit your written identification of potential properties. These identifications must be made in writing and delivered to your qualified intermediary.

The 180-Day Exchange Period

The IRS gives exchangers a maximum of 180 days from the sale date to complete their purchase of the replacement property. However, this period can be shortened if your tax filing deadline falls before the 180th day—unless you file for an extension.

Why These Dates Matter

Missing either of these deadlines means your 1031 exchange fails and the gain on your sale becomes taxable. The IRS has very strict rules: weekends and holidays do not extend deadlines (except in rare federally declared disaster situations). Careful planning ensures you protect your capital and keep your exchange on track.

Common Mistakes to Avoid

Assuming you always get 180 days (tax deadlines can shorten the period).

Waiting too long to identify replacement properties.

Misunderstanding that weekends and holidays do not extend deadlines.

Not coordinating with a qualified intermediary or advisor.

How We Can Help

At 1031 DST Group, we specialize in helping investors plan and execute exchanges with confidence. We provide access to 1031-eligible investments, including DSTs, and work with you to stay compliant with IRS rules while pursuing long-term strategies.

Need to Schedule a Consultation?

Feel free to book a 30-minute conversation directly with one of our partners. If you need guidance on a 1031 exchange, DST suitability, or just want clarity on your options, we’re here for you.

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