What Is Boot in a 1031 Exchange

Cash boot shows up whenever an exchanger walks away with sale proceeds instead of reinvesting all of them into replacement property. If the relinquished property sells for more than the replacement property costs, the difference is typically returned to the exchanger by the qualified intermediary at the end of the exchange, and that amount is taxable as boot.

Cash boot also includes non-like-kind property received as part of the deal, such as personal property bundled into a sale, or proceeds used to pay costs that are not recognized closing expenses under exchange rules. Even a small amount of cash boot does not disqualify the rest of the exchange, but it is taxed in the year received, up to the amount of realized gain.

Mortgage boot is less intuitive because no cash actually changes hands with the exchanger. It occurs when the debt paid off on the relinquished property exceeds the debt taken on for the replacement property. The IRS treats debt relief as economically equivalent to receiving cash, since paying off a mortgage frees the exchanger from an obligation they would otherwise still owe.

An exchanger who sells a property with a $600,000 mortgage and buys a replacement with only a $400,000 mortgage has $200,000 of mortgage boot, even if every dollar of sale proceeds went straight into the new purchase. This is one of the more common ways Tennessee investors trigger unexpected boot, particularly when downsizing from a larger property into a smaller or lower-leverage replacement.

Adding more cash into a purchase can offset mortgage boot, since increasing the equity contribution reduces the reliance on new debt. What does not work in the other direction is using additional debt on the replacement property to offset cash boot. Taking on a larger mortgage does not shelter cash that was already pulled out of the exchange; the two forms of boot are not freely interchangeable in that way.

Exchangers generally avoid boot by matching or exceeding both the sale price and the debt level of the relinquished property when structuring the replacement purchase, which keeps equal or greater value moving forward on both fronts.

Boot tends to surface in a few recurring situations across Tennessee deals: an investor selling a highly appreciated Nashville multifamily property and reinvesting into a lower-priced Chattanooga or Knoxville asset, a Memphis exchanger paying off a larger loan than the replacement property requires, or an owner using a portion of proceeds to cover non-qualifying costs like a real estate commission structured outside the exchange or personal expenses paid at closing.

None of these situations disqualify the exchange as a whole. They simply mean part of the gain is recognized as taxable in that year, while the remainder continues to defer under the exchange.

Closing statements are usually where boot gets caught before it becomes a surprise at tax time. A line-by-line review of the settlement statement against what qualifies as a recognized exchange expense, separate from personal costs an exchanger might otherwise expect to fold into the transaction, is typically done before closing rather than after, since some items cannot be reclassified once the exchange has already settled.