Practical guide
Understanding coverage gap estimate — compare estimated replacement value
Everyday editorial team · GEOINNOVATION CO., LTD · Published · Updated
What this calculation is for
A coverage-gap check compares a replacement need with insurance limits and money reserved for a loss. It can highlight underinsurance, but cannot decide whether a policy is suitable or whether a specific claim will be covered.
How the method works
Replacement needs are projected using the entered inflation and review period, then compared with coverage, deductible assumptions and available reserves. Verify each result label because a coverage limit, a deductible and a cash reserve are not interchangeable forms of protection.
A worked example
If rebuilding is estimated at $400,000 but a policy limit is $300,000, a $10,000 cash reserve does not eliminate the remaining replacement exposure. An insurer’s valuation and settlement terms can differ from the estimate.
Assumptions and real-world differences
Actual-cash-value settlements, exclusions, sublimits, coinsurance penalties, flood or earthquake coverage and policy endorsements are not assessed. A budgeted replacement value is not a professional appraisal or a binding insurer valuation.
Comparing two estimated replacement value assumptions
The baseline and alternative calculations change estimated replacement value while keeping the remaining model inputs the same. This isolates that particular assumption rather than comparing two completely different plans. Read both detailed outcomes and the B-minus-A difference in the headline’s units. A larger number is not automatically better: a larger cost and a larger savings balance have opposite interpretations.
Reproduce this tool’s example
These fixed example inputs are independent of edits you make above. Enter them in this tool to reproduce the result, then replace them with your own assumptions.
- Estimated replacement value
- 350,000 $
- Current coverage limit
- 300,000 $
- Deductible
- 2,500 $
- Additional cash reserve
- 10,000 $
- Annual replacement-cost increase
- 3 %
- Years until review
- 3 years
- Alternative estimated replacement value
- 438,000 $
Scenario B result: $168,614.43
Scenario A: $72,454.45. Estimated future coverage gap.
- Scenario A main result: $72,454.45
- Scenario B main result: $168,614.43
- Numeric difference (B − A), in result units: 96,159.98
Frequently asked questions
- Does the result mean a claim will be paid?
- No. Coverage depends on the policy wording, cause of loss, limits and claim assessment.
- Is market value the same as replacement cost?
- No. Land, location and market demand affect sale value differently from the cost of rebuilding.
- Can I also change other assumptions in the alternative?
- This one-factor comparison deliberately holds them fixed. Use the two-scenario version when rates, costs, timing or several household inputs all differ.