1031 Exchange Calculators

Calculate boot, basis, proceeds, tax deferral, deadlines, replacement value, and identification rules for your exchanges.

Explore models and Excel workbooks

These public calculators are planning tools. They expose core mechanics and common conventions, but they do not replace transaction documents, a qualified intermediary, or CPA review.

Boot Calculator

What is boot?

Boot is money or other non-like-kind property you receive in the exchange, including debt you are relieved of that is not replaced by new debt or cash you add. Boot is taxable only up to your realized gain.

The total purchase price of the property you are buying as the replacement property.
Amount in US dollars.
The new loan balance you will carry on the replacement property at closing (liabilities you assume).
Amount in US dollars.
Your sale proceeds after commissions, closing costs, and loan payoff. This is the exchange equity your qualified intermediary is holding.
Amount in US dollars.

Exchange expenses paid at closing are already out of this figure, so they reduce boot as Form 8824 line 15 provides. Expenses you pay with other funds can reduce boot further; ask your CPA.

The mortgage balance paid off when the relinquished property closes. It is offset by the replacement debt and by any cash you add at the replacement closing; only the remainder is boot.
Amount in US dollars.
Relinquished sale price less exchange expenses and adjusted basis. Enter it to see how much of the boot is taxable; a negative number is a loss.
Amount in US dollars.

Gain recognized is the lesser of realized gain and net boot (IRC §1031(b)); a loss is not recognized (§1031(c)).

Boot & Equity

Calculate cash boot, net debt relief, and equity in the replacement property. Boot is taxable up to your realized gain, so proper calculation is crucial for tax planning.

Net Proceeds

Determine net proceeds to deposit with qualified intermediary. Includes sale price minus costs, commissions, and payoff amounts.

Basis Carryforward

Calculate adjusted basis in replacement property. Critical for future depreciation calculations and eventual sale projections.

Disclaimer: These calculators provide educational estimates for informational purposes only. They do not constitute tax, legal, or investment advice. Public outputs may simplify recognized gain, NIIT, state conformity, and other fact-specific rules. Consult with a qualified tax professional or CPA before making tax decisions.