Mortgage Well

PMI removal calculator guide

The PMI calculator projects when your scheduled balance reaches the 80% and 78% loan-to-value milestones. Here's how to read the result and where it can be misleading.

What the calculator estimates

The PMI calculator runs an amortization schedule on the inputs you provide and finds the first month where the remaining balance crosses 80% and 78% of the original home value. Those are the two thresholds at which conventional PMI is most commonly cancellable on request (80%) or required to terminate automatically (78%) under federal law.

Original value vs. current appraisal

The federal-law thresholds are based on original value — the lower of your purchase price or the appraisal at origination — not current market value. The calculator follows that convention by default. If your home has appreciated, many servicers will let you cancel earlier based on a new appraisal showing current LTV at or below 80%, sometimes 75% if you've owned the home less than 2–5 years. To model that case, lower the "home value" input to your current appraised value and re-run.

Loan type caveat

  • Conventional loans follow the calculator's 80/78 framework.
  • FHA loans use mortgage insurance premium (MIP), not PMI. MIP generally lasts the life of the loan unless you refinance into a conventional loan. Don't use the PMI calculator's milestones for an FHA loan.
  • VA loans charge a one-time funding fee instead of monthly insurance.
  • USDA loans follow USDA-specific annual-fee rules.

How extra payments change the timing

Extra principal payments lower your balance faster, which moves both the 80% and 78% milestones earlier. The calculator's extra-payment fields let you model this directly. As a rough guide, on a 30-year loan with a 95% start, even $100–$200/month often moves the auto-termination date forward by 1–2 years.

What the calculator can't predict

  • Your servicer's exact policies (some require a clean payment history for the past 12–24 months).
  • Whether a new appraisal will support the value you need for early cancellation.
  • The effect of late payments or loan modifications on eligibility.
  • Lender-paid PMI (LPMI), which doesn't cancel because it's baked into rate).

Frequently asked

Does the calculator estimate PMI cost?
Yes. Enter your annual PMI rate (typically 0.3%–1.5% on conventional loans) or a flat dollar amount, and the calculator will show monthly PMI plus the projected milestone dates.
Can I cancel PMI before 80% LTV?
Sometimes. Many servicers will accept a new appraisal showing current LTV at or below 80% (or 75% with newer ownership). Rules vary; ask your servicer.
What if I have FHA mortgage insurance?
Use the calculator for general amortization only — the LTV milestones don't apply. FHA MIP follows different rules and generally lasts the life of the loan unless you refinance to a conventional loan.

Sources and references

Helpful consumer references used to explain assumptions on this page. These are educational pointers, not regulatory endorsement.