Partial 1031 (Boot) Calculator
Boot is the taxable amount in a partial 1031 exchange.
See exactly how much of your gain will be taxed when you don't fully reinvest — and how to fix it.
Relinquished Property (Selling)
Replacement Property (Buying)
What is boot?
Cash Boot: Proceeds from the sale that you don't reinvest. Example: You net $500k cash but only use $400k for the new property. The $100k difference is cash boot.
Mortgage Boot: Debt relief. Example: You pay off a $300k mortgage but only take on a $200k new mortgage. The $100k difference is mortgage boot (unless offset by cash).
The two tests for full deferral
1. Purchase Price Test: You must buy replacement property equal to or greater than your net sales price.
2. Equity Test: You must reinvest all net cash proceeds. Any paid-off debt must be replaced with new debt or additional cash.
Ready to calculate
Enter your property numbers on the left to see your boot calculation and tax estimate.