Comprehensive Guide
Learn more in our Investing Guide.
How it works
A 1031 exchange defers capital-gains and depreciation-recapture tax when investment real estate is swapped for like-kind investment real estate — and the clause that punishes sloppy swaps is boot, any value you extract along the way. Cash boot is sale equity that never reaches the replacement property; mortgage boot arises when the new loan plus new equity falls short of the debt retired, effectively letting leverage leak out tax-free-looking but fully taxable. The safe harbors are mechanical: equal-or-up on price, equal-or-up on equity, equal-or-up on debt, with a qualified intermediary holding proceeds and 45-day identification and 180-day closing clocks running. This calculator walks your numbers through the waterfall — selling costs, payoff, freed equity, cash required into the replacement including buying costs — and isolates whatever boot remains. Taxable boot is charged a blended rate approximating federal gains treatment, state tax and recapture character; the headline output is the tax deferred, dollars that stay invested compounding inside the replacement instead of leaving with the closer. Perfectly executed exchanges defer everything. Partial ones defer most — and knowing the exact cost of pulling cash out is what turns temptation into an informed decision.Formula
Equity = price − costs − payoff | Boot = max(0, equity − cash in) + max(0, old debt − new debt) | Deferred = gain-rate − boot-rate (blended 25%)
Tips
- Line up the qualified intermediary before listing — touching proceeds voids everything.
- Calendar the 45-day identification window the day the sale closes; it is unforgiving.
- To avoid boot entirely: buy equal or up, reinvest all equity, and replace or exceed the old debt.
- Buying costs count toward value but not toward equity reinvested — budget them separately.
- Boot is taxed first from recapture character; confirm your blended rate with a CPA before swapping.