1031 Exchange Deadline & Boot Calculator

Verified math. Every figure comes from one independently-tested engine (75 checks, all passing).See how I verify →

Your 1031 exchange deadlines from the sale date, and the boot that stays taxable. Updates as you type.




45-day identification deadline
180-day closing deadline
Total boot
Recognized (taxable) gain
Deadlines run from the closing date (calendar days). Boot is taxable up to the realized gain.

Educational tool only. Not tax, financial, or legal advice. 1031 rules are strict and fact-specific; the 45/180-day periods do not extend for weekends or holidays. Work with a qualified intermediary and a CPA.

Want to defer tax the right way? CRE Tax Strategy covers depreciation, 1031s, and cost segregation.

Learn CRE Tax Strategy →


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