Rulebook clock
1031-exchange calculator
A 1031 is a rulebook with a stopwatch.
Change the number
What the math says Metric - Waiting on inputs. Metric - Waiting on inputs. Metric - Waiting on inputs. Metric - Waiting on inputs.
The first number is only the beginning.
Deferred gain - Equity to replace - Debt replacement gap -
The chart will name the assumption carrying the most weight once the model runs.
Scenario check
| Case | Result | What moved |
|---|
Assumption ledger
Assumption coach Move an input to see what assumption is carrying the story.
Who is the QI?
Calling after closing
This is not tax advice. The qualified intermediary and timeline matter before closing.
What this number is really saying
Deferral is powerful only when the timeline, intermediary, and replacement math are handled before the sale closes.
The assumption to attack
Replacement price, new debt, and available equity. Boot is what happens when the math and rules stop matching.
What the math is ignoring
Identification rules, entity issues, related-party rules, tax filing deadlines, and CPA/legal review.
Headline, stress, proof.
- Start with the headline result.It names the current modeled answer, not the decision.
- Compare the stress cases.The scenario strip shows which assumption makes the answer fragile.
- Use the ledger as a diligence list.Every input should map back to a document, invoice, statement, term sheet, or named assumption.
Documents before confidence.
Qualified intermediary, CPA, settlement statements, debt replacement math, identification notices, and the 45/180-day timeline.
Stress before trust
- Calling after closing
- Underbuying replacement property
- Forgetting debt replacement
Make the model answer.
- Who is the QI?
- When are the 45 and 180 day deadlines?
- What boot risk exists?
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