1031 Exchange Calculator
Calculate 1031 exchange boot, tax deferral, and reinvestment requirements. Follow 45/180-day timelines and determine minimum replacement property value.
Reverse 1031 Exchange Calculator
Calculate reverse 1031 exchange costs for buying replacement property first. Compare carrying costs, parking arrangements, and 180-day sell deadline exposure.
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Mortgage, taxes, insurance, HOA for both
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Optional, for gap funding
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Capital Gain⧉
$165,000.00
Deferred Tax⧉
$39,270.00
Tax saved by exchange
Total Exchange Costs⧉
$28,000.00
Sum of all values
Net Benefit⧉
$11,270.00
Exchange makes financial sense
Reverse Exchange is Worthwhile
Tax deferral ($39,270.00) exceeds exchange costs ($28,000.00). Net: +$11,270.00.
| Deadline | Date |
|---|---|
| Replacement Acquired (starts clock) | 2026-03-01 |
| 45-Day: Identify Relinquished Property | 2026-04-15 |
| 180-Day: Must Close Sale | 2026-08-28 |
| Cost Item | Amount |
|---|---|
| EAT / Intermediary Fees | $10,000.00 |
| Carrying Costs (4 months × $4,500.00) | $18,000.00 |
| Total Exchange Costs | $28,000.00 |
Planning notes, formulas, and examples
About the Reverse 1031 Exchange Calculator
A reverse 1031 exchange allows an investor to acquire the replacement property BEFORE selling the relinquished property. This is valuable when you find a great replacement property but haven't yet sold your current investment. The replacement is “parked” with an Exchange Accommodation Titleholder (EAT) while you complete the sale of your old property within 180 days.
Reverse exchanges are more complex and expensive than standard (forward) exchanges. They require an EAT to hold title temporarily, and you must fund the purchase without exchange proceeds (since you haven't sold yet). Additional costs include EAT fees ($5,000–15,000), bridge or hard-money loan interest, double property taxes and insurance during the overlap period, and potential dual mortgage payments.
This calculator estimates the total carrying costs of a reverse exchange and compares them to the tax savings from completing the exchange. It helps you determine whether the additional expense is justified by the tax deferral.
When This Page Helps
Reverse exchanges cost $10,000–$50,000+ in carrying and setup fees. But the tax deferral can save $30,000–$200,000+. This calculator compares the costs against the tax savings to determine if the reverse exchange makes financial sense.
How to Use the Inputs
- Enter the replacement property purchase price and acquisition date.
- Input estimated sale price and date for the property being sold.
- Enter the carrying costs: mortgage, taxes, insurance, HOA on both properties.
- Input EAT/intermediary fees.
- Set the capital gains rate to see tax deferral savings.
- Compare total reverse exchange costs against deferred taxes.
Formula used
Overlap Days = Sale Date − Acquisition Date
Carrying Costs = (Monthly Payment + Taxes + Insurance + HOA) × Overlap Months
Total Exchange Costs = EAT Fees + Bridge Loan Costs + Carrying Costs
Deferred Tax = Capital Gain × Tax Rate
Net Benefit = Deferred Tax − Total Exchange CostsExample Calculation
Result: Net benefit: $17,600 after $28,000 costs offset by $47,600 tax deferral
Sale gain: $500,000 − $35,000 costs − $300,000 basis = $165,000. Tax at 23.8% = $39,270. Reverse exchange costs: $10,000 EAT + $18,000 carrying (4 months × $4,500) = $28,000. Net benefit: $39,270 − $28,000 = $11,270.
Tips & Best Practices
- The 180-day deadline is strict — if you can't sell the relinquished property in time, the exchange fails.
- Have your relinquished property listed and priced competitively BEFORE starting the reverse exchange.
- EAT fees typically range from $5,000–$15,000 plus monthly holding fees of $500–$1,500.
- Bridge loans or hard-money loans for the gap period carry 8–12% interest rates.
- Consider whether you could reduce costs by doing a forward exchange (sell first, then buy).
- Work with a QI who specializes in reverse exchanges — the documentation is complex.
How a Reverse 1031 Exchange Works
The process begins when you identify a replacement property you want to acquire before selling your current investment. An EAT (typically arranged by your Qualified Intermediary) takes title to the replacement property. You fund the purchase through a bridge loan, hard money loan, or cash. You then have 180 days to sell the relinquished property and complete the exchange.
Forward vs. Reverse Exchange Comparison
Forward exchanges (sell first, buy second) are simpler and cheaper. Reverse exchanges add $10,000–$50,000 in costs. The primary advantage of a reverse exchange is securing the replacement property in competitive markets. If you have the luxury of time, a forward exchange is almost always more cost-effective.
Risk Mitigation Strategies
To reduce reverse exchange risk: (1) have the relinquished property listed and priced before starting, (2) get a backup buyer identified, (3) choose a realistic price — overpricing is the top reason reverse exchanges fail, (4) build a cushion into your timeline (aim to sell in 120 days, not 178), and (5) have a contingency plan if the sale falls through.
Sources & Methodology
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Frequently Asked Questions
A reverse 1031 exchange is when you buy the replacement property before selling the relinquished property. An Exchange Accommodation Titleholder (EAT) holds title to one of the properties while you complete both transactions within 180 days. It follows the same tax deferral rules as a forward exchange.
A reverse exchange is useful when you find an ideal replacement property but haven't sold your current property yet. In competitive markets, waiting to sell first might mean losing the replacement opportunity. The reverse exchange lets you lock in the purchase and sell later.
An EAT is a special-purpose entity that temporarily holds title to one of the properties (usually the replacement) during a reverse exchange. The EAT is controlled by the Qualified Intermediary and exists solely for the exchange. It charges setup fees ($5,000–15,000) plus monthly holding fees.
The maximum period is 180 days from when the EAT acquires the parked property. Within this time, you must identify which property to sell (within 45 days) and close the sale. There are no extensions. If the sale doesn't close in 180 days, the exchange fails and taxes become due.
Reverse exchanges add $10,000–$50,000+ in costs: EAT fees ($5,000–15,000), bridge/hard-money loan interest (8–12%), double property taxes and insurance, double mortgage payments during overlap, additional legal/title fees, and potential entity formation costs. Consult a professional for advice tailored to your specific situation.
Yes. If you can't sell the relinquished property within 180 days, the exchange fails. You'd own both properties and owe capital gains tax on the eventual sale of the original property. The EAT fees and carrying costs are sunk. This is the primary risk of reverse exchanges.
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