Free Tool

1031 Exchange Deadline Calculator

Free to use. Free to embed on your website. Calculate ordinary 45-day and 180-day calendar estimates for a deferred exchange; actual legal dates require return-due-date and IRS-relief checks.

45-Day Identification Deadline
Sun, Nov 29, 2026
45 days remaining
Day 180 — Ordinary Outer Limit
Tue, Apr 13, 2027
180 days remaining
⚠️ Calendar-day estimates only. The legal exchange deadline is the earlier of day 180 or your federal return due date, including extensions. Eligible IRS disaster relief may change dates. Confirm with your QI and CPA.Powered by The 1031 Source

📎 Embed This Calculator on Your Website

Free for CPAs, real estate attorneys, investor blogs, and property management firms. Add this calculator to your site in 30 seconds, no coding required.

<iframe src="https://the1031source.com/Widget" width="100%" height="340" frameborder="0" style="border-radius:12px;border:1px solid #DDE6F0;"></iframe> <p style="font-size:11px;color:#888;margin-top:4px;">Powered by <a href="https://the1031source.com" target="_blank">The 1031 Source</a></p>
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100% Free
No cost, no account required. Just copy the code and paste it.
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Mobile Responsive
Check the embedded frame dimensions on your desktop and mobile layouts.
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Calendar-Day Estimates
Calculates normal periods; does not automatically apply IRS relief or your return due date.
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Attribution Included
Links back to The 1031 Source, good for your clients, good for SEO.