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1031 Boot Tax Calculator

In a 1031 like-kind exchange, 'boot' triggers immediate gain recognition. Cash boot = cash received in the exchange. Debt relief boot = the amount your relinquished debt exceeds your replacement debt. Boot is recognized as gain up to the deferred gain limit. This calculator computes total boot, recognized gain, and resulting tax — letting investors structure the trade to keep boot at zero.

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Boot

$

Total boot

$50,000

Recognized gain

$50,000

Tax owed (~20%)

$10,000

Cash boot

$10,000

Debt relief boot

$40,000

How the math works

In a 1031 exchange, boot triggers immediate gain recognition. Cash boot = cash received. Debt relief boot = relinquished debt minus replacement debt (if relinquished was higher). Total boot is recognized as gain up to the deferred gain limit.

To fully defer: replacement value ≥ relinquished value AND replacement debt ≥ relinquished debt AND no cash received. Trade up in everything to keep all boot at zero.

Editorial noteMaintained by EveryCalc - Reviewed June 2026

EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.

Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.

Learn more about our review process on the EveryCalc methodology page.

How this calculator works

What this page estimates

This 1031 Boot Tax Calculator is built to give a quick, browser-based estimate for 1031 boot tax. In a 1031 like-kind exchange, 'boot' triggers immediate gain recognition. Cash boot = cash received in the exchange. Debt relief boot = the amount your relinquished debt exceeds your replacement debt. Boot is recognized as gain up to the deferred gain limit. This calculator computes total boot, recognized gain, and resulting tax — letting investors structure the trade to keep boot at zero. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.

Calculation approach

The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For finance tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.

Example workflow

For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.

Practical checks

  • Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
  • Run a low, base, and high case when the inputs are estimates.
  • Check the related calculators below when the next decision depends on a different assumption.

How to interpret the 1031 boot tax result

Best use

Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.

Cross-check

Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.

Watch for

Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.

This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.

Before relying on this 1031 boot tax estimate

Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.

Confirm source numbers

Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.

Separate cash flow from total cost

A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.

Run conservative cases

Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.

Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.

How to Use

  1. Enter relinquished property value and debt paid off.
  2. Enter replacement property value and debt assumed.
  3. Enter cash received in the exchange (most common boot source).
  4. Enter total deferred gain (cap on recognition).
  5. Read total boot, recognized gain, and tax owed.

Frequently Asked Questions

How to keep boot at zero?

Trade up in everything: replacement value ≥ relinquished, replacement debt ≥ relinquished debt, no cash received. The 'three-property rule' helps identify multiple replacements.

Tax rate on boot?

Long-term capital gain rate (15-20% federal) plus depreciation recapture at 25% on portion attributable to depreciation. Calculator uses 20% as approximation.

Reverse 1031 boot?

Same boot rules apply — but in reverse exchange you can only have boot if cash flows back to you, which is rare in QI structures.

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