Definition
Boot is the value you receive in a 1031 exchange that is not like-kind real property. Boot is most commonly cash or debt relief (getting out of a larger loan than you replace). Even if your exchange otherwise qualifies, boot can cause some (or all) of your gain to become taxable.
Common Types of Boot
1) Cash boot
Cash boot is any cash you (or your closing statement) ends up with from the exchange— for example, leftover sale proceeds after paying closing costs and purchasing replacement property. It can also include non-allowable credits or cash-outs at closing that function like receiving cash.
2) Mortgage boot (debt boot)
Mortgage boot occurs when you reduce your debt in the exchange. If you sell a property with a larger loan and buy a replacement with a smaller loan (and you don’t add enough cash to offset), the difference can be treated as boot.
3) “Other property†boot
If you receive personal property, services, or other non-like-kind items as part of the deal, that value can also be treated as boot.
Why It Matters
A 1031 exchange is designed to defer capital gains taxes by continuing your investment in qualifying real estate. Boot breaks that continuity by giving you something else (cash, debt relief, or non-like-kind value), which is why it can trigger recognized (taxable) gain.
How Boot Is Generally Taxed (Conceptually)
Boot does not automatically make the whole exchange taxable. In general, the taxable portion is limited to the lesser of:
- your realized gain on the sale, or
- the amount of boot received.
(Exact tax results depend on basis, depreciation recapture, entity structure, and documentation—confirm with your tax advisor.)
How Investors Avoid Boot
- Trade up in value: buy replacement property priced at or above the relinquished property’s net sale price.
- Replace debt: take on equal or greater debt, or add enough cash to offset any debt reduction.
- Watch closing statements: avoid credits or payouts that create cash boot.
- Use a Qualified Intermediary (QI): keep exchange funds properly held and disbursed.
- Plan costs correctly: understand which closing costs can be paid from exchange proceeds without creating boot (this is detail-heavy—verify early).
Example
You sell a property for $1,000,000 and your loan payoff is $400,000. You buy a replacement for $950,000 with a new loan of $300,000. The exchange may create boot in two ways:
- Cash boot: if you don’t reinvest all remaining net proceeds (e.g., $50,000 left over after purchase and costs).
- Mortgage boot: debt reduced from $400,000 to $300,000 (a $100,000 reduction) unless offset by additional cash invested.
Common Pitfalls
- Accidental cash back: credits, prorations, or “rebates†that end up as cash to the taxpayer.
- Debt mismatch: reducing loan balance without realizing it can be treated as boot.
- Assuming “close enough†is fine: small leftovers can still be taxable.
- Late planning: boot avoidance is easiest before contracts are signed and loans are finalized.
Related Terms
- 1031 Exchange
- Like-Kind Property
- Replacement Property
- Qualified Intermediary (QI)
- Depreciation Recapture
- Cost Basis
Important Note
This page is for educational purposes only and is not tax or legal advice. 1031 exchanges are procedural and fact-specific. Work with a qualified intermediary and tax counsel to confirm how boot and closing items will be treated in your transaction.