How to use
- Replace the example inputs with your loan and property figures.
- Select Calculate to update the estimate and any schedule.
- Change one assumption at a time, then compare the result with the earlier scenario.
How this calculation works
The annual premium percentage is multiplied by the starting loan amount and divided by twelve. A scheduled amortization table is searched for the first month at or below eighty percent of the original value. Scheduled termination uses the earlier modeled seventy-eight-percent date or midpoint rule.
Monthly premium = starting loan × annual PMI percentage ÷ 12
Worked example
Illustrative inputs — not a quote or a local average.
- Original loan amount
- $360,000.00
- Original property value
- $400,000.00
- Interest rate
- 6.5 %
- Original loan term
- 30 years
- Annual PMI rate
- 0.5 %
Monthly mortgage insurance: $150.00. Estimated 80% request month: 95 months. Estimated scheduled termination month: 109 months.
Reading the result
Treat the request month as a date to investigate, not a confirmation that insurance has ended. This tool starts a new schedule using your entered balance and term; for an existing loan, use original loan inputs to model the original schedule. The premium is an assumption, not an insurer quote.
Before acting on the estimate
The timeline assumes an eligible conventional loan with current payments and no appreciation-based cancellation. Actual request conditions and program rules matter. FHA mortgage insurance is not conventional PMI and must not be estimated with these cancellation milestones.

Questions, answered
Does the tool cancel PMI?
No. Only the servicer can confirm cancellation and change the bill.
Can I enter a current market value?
For this original-value timeline, use the applicable original value, not an optimistic resale estimate.