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1031 Exchange Calculator

Debt Replacement & LTV Calculator

Find the replacement value and loan you need to fully reinvest your equity and replace your debt — avoiding mortgage boot.

Jerry Baker · Updated June 2026 · Free interactive tool
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Your sale & target leverage

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Replacement & debt targets

Net equity to reinvest
Replacement value needed
New loan at your LTV
Min. LTV to avoid mortgage boot
Mortgage boot

See DSTs at matching leverage →
Replacing your debt

Why you must replace your debt

To defer the entire gain you must buy property of equal-or-greater value and take on at least as much debt as you paid off — or add cash to make up the difference. Falling short creates taxable mortgage boot, a real tax bill even if you never touched the cash.

This calculator tells you the minimum replacement value and new loan required at your target LTV to deploy all your equity and cover your old debt. If your chosen LTV comes up short, the shortfall is shown as mortgage boot.

How DSTs simplify debt matching

Delaware Statutory Trusts come with a range of fixed LTV levels, making it straightforward to find an offering that matches your debt-replacement target precisely — without the complexity of arranging new financing on a directly-held property. You can also combine boot calculator results: see how much boot a given structure creates using our 1031 Exchange Boot Calculator.

Educational estimate only. This tool is for general illustration and is not tax, legal, or investment advice. It uses simplifying assumptions and the figures you enter, which may not reflect your situation or current law; depreciation recapture, net investment income tax, state taxes, and other items can change the result materially. Figures are illustrative and not guaranteed. Consult your own qualified tax and legal advisors before acting. Not an offer or solicitation. DST interests are sold only to accredited investors via private placement memorandum. Securities offered through Aurora Securities, Inc. (ASI), member FINRA/SIPC; Baker 1031 Investments is independent of ASI.

Don't want to pay this bill?A 1031 exchange or DST can defer it — we place 1031-eligible replacement property for accredited investors, often closeable inside your 45-day window.
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This calculator is an educational illustration based on the values you enter — not a projection, guarantee, or tax, legal, or investment advice, and not an offer of any security. Results depend on your inputs and assumptions and will differ from actual outcomes; a 1031, 721, or Opportunity Zone transaction may fail to qualify for the intended tax deferral. Consult your own CPA and attorney.