Boot Calculation Support
Boot is not a mysterious tax trap, it is what shows up when replacement value or replacement debt does not fully match what you sold, and the gap gets recognized as taxable. Nobody on this end calculates your tax liability, but organizing the inputs cleanly is most of the work your CPA needs done before they can tell you where you stand.
The pattern that trips people up in Miami is assuming boot only comes from cash pulled out at closing. Debt and closing cost mismatches create it just as often, and both are easy to miss until someone lays the two settlement statements side by side.
Where Miami Deals Create Boot Without Anyone Noticing
An exchanger sells a fully paid-off Miami property and rolls into a replacement with a smaller loan than expected because a lender came in conservative on a coastal asset, or because insurance costs pushed debt service assumptions down during underwriting. The debt shortfall becomes mortgage boot even if every dollar of cash proceeds gets reinvested, and it is easy to miss until the CPA asks for the settlement statements.
Condo Assessments and Closing Cost Line Items
Special assessments on older Miami-Dade condo buildings, driven in part by post-2021 structural inspection requirements, sometimes get negotiated into a purchase price adjustment or a seller credit at closing. Whether that line item counts as part of the exchange or as separate consideration is exactly the kind of question that needs to reach the CPA with the actual settlement language attached, not a verbal summary.
- net sale proceeds after loan payoff and prorations
- replacement purchase price and new loan amount
- any assessment credit or price adjustment at closing
- qualified exchange expenses versus non-exchange costs
- cash retained versus cash reinvested through the QI
Debt Replacement Across Different Asset Classes
Moving from a stabilized multifamily property into an industrial building in Doral, or into a Wynwood retail bay, often comes with a different loan-to-value expectation from the lender, which changes how much debt actually replaces what was paid off. That shift needs to be documented with the actual loan terms, not the number originally assumed during identification.
The same applies to a DST allocation used as part or all of the replacement, since the leverage embedded in that structure has to be compared against the debt paid off on the relinquished side just as carefully as a direct purchase would be.
Getting the File to the CPA in Usable Form
The goal is a packet the tax advisor can work from without chasing down missing settlement statements: the relinquished closing statement, the replacement closing statement, the loan payoff letter, and a short note on anything unusual, like a foreign seller withholding or a condo assessment credit. Waiting until filing season to assemble this turns a straightforward review into a scramble.
Timing the Review Before It Is Too Late to Adjust
Boot exposure is easier to manage while a deal is still open than after it has closed. If a mid-diligence review shows the replacement loan will come in well below the payoff amount on the relinquished property, there may still be room to adjust the offer, add a second replacement property, or discuss options with the lender before the numbers are locked in. Waiting until after closing to run this review removes most of those options.
Common 1031 Exchange Questions
What creates mortgage boot in a Miami 1031 exchange?
Generally, replacement debt that is lower than the debt paid off on the relinquished property, which can happen when a lender underwrites conservatively on coastal or older assets.
Does a condo association special assessment affect boot calculations?
It can, depending on how the assessment is handled in the purchase agreement and settlement statement, which is why that language should go to your CPA directly.
Can cash boot be avoided by reinvesting all sale proceeds?
Reinvesting all proceeds addresses cash boot, but a debt shortfall between the relinquished and replacement loans can still create mortgage boot separately.
Do you provide tax advice on how much boot I will owe on?
No. This work organizes the closing documents and inputs your CPA needs; the tax calculation and advice should come from your tax advisor.
What documents does a CPA typically need to evaluate boot exposure?
Both closing statements, the payoff letter for any loan retired at sale, the new loan terms, and notes on any unusual credits or assessments at closing.
Is it too late to address boot exposure once the deal has closed?
Largely yes, since most adjustments, like changing the offer or adding a second replacement property, are only realistic while the deal is still open, which is why a mid-diligence review matters.
Does a DST allocation need the same debt replacement review as a direct purchase?
Yes. The leverage embedded in a DST structure should be compared against the debt paid off on the START EXCHANGE REVIEW with the same care as a directly owned replacement property.
When is the best time to start organizing boot calculation inputs?
As soon as the START EXCHANGE REVIEW is under contract, so the numbers are gathered while records are fresh instead of reconstructed later from memory or scattered emails.
Does a partial exchange, where only some proceeds are reinvested, create boot?
Yes, generally. Any proceeds not reinvested into replacement property are typically treated as cash boot, which is a deliberate choice some exchangers make and should confirm with their CPA.
