PMI Calculator

Calculate your private mortgage insurance (PMI) cost based on loan-to-value ratio and credit score. See when PMI drops off and how much it adds to your monthly payment.

$
$
%
yr
LTV Ratio
90.0%
10.0% down ($40,000.00)
PMI Rate
0.52%
Annual rate based on LTV & credit
Monthly PMI
$156.00
$1,872.00/year
Total Payment
$2,431.44
P&I $2,275.44 + PMI $156.00

PMI Removal Timeline

Request Removal (80% LTV)
7.9 years
Month 95
Auto Cancel (78% LTV)
9.1 years
Month 109
Total PMI Cost
$14,820.00
Until eligible for removal
Planning notes, formulas, and examples

About the PMI Calculator

Private mortgage insurance (PMI) is generally required on a conventional mortgage when the down payment is below 20%. PMI protects the lender rather than the borrower, and it raises the total monthly housing cost. The actual premium depends on the lender, mortgage insurer, credit profile, down payment, and loan program.

This calculator estimates monthly PMI using an internal rate table tied to the selected loan-to-value ratio and credit-score bucket. It also estimates the dates when the loan reaches 80% LTV (when a borrower may be able to request removal) and 78% LTV (when automatic termination may apply under the Homeowners Protection Act if the loan remains in good standing).

The result is a planning estimate designed to compare scenarios. It is not a lender-issued mortgage-insurance quote.

When This Page Helps

PMI is one of the largest hidden costs of buying a home with less than 20% down. This calculator helps you understand exactly how much PMI adds to your payment, how long you will pay it, and how much total PMI you will spend. Armed with this information, you can decide whether to put more down, choose a different loan product, or plan for PMI removal.

How to Use the Inputs

  1. Enter the home price and your loan amount (or down payment percentage).
  2. Select your approximate credit score range.
  3. The calculator estimates your PMI rate based on LTV and credit score.
  4. Review the monthly PMI cost and total PMI over the removal period.
  5. See the estimated dates for PMI request (80% LTV) and auto-cancel (78% LTV).
  6. Consider strategies to reduce PMI duration if the cost is significant.
Formula used
LTV = Loan amount / Home value ร— 100 Annual PMI = Loan amount ร— PMI rate Monthly PMI = Annual PMI / 12 PMI rate varies by LTV and credit score: LTV 80.01-85%: 0.30-0.70% LTV 85.01-90%: 0.40-0.95% LTV 90.01-95%: 0.55-1.25% LTV 95.01-97%: 0.75-1.50% PMI auto-cancels when scheduled balance reaches 78% of original value.

Example Calculation

Result: $135/mo PMI | Drops off in ~6.5 years | Total PMI: ~$10,530

A $400,000 home with $360,000 loan = 90% LTV. With a 740+ credit score, the estimated PMI rate is 0.45%. Annual PMI = $360,000 ร— 0.0045 = $1,620, or $135/month. Based on the amortization schedule at a 6.5% rate, the loan reaches 80% LTV ($320,000) in about 78 months. Total PMI paid: approximately $10,530.

Tips & Best Practices

  • Credit scores of 760+ get the lowest PMI rates โ€” improving your score before buying can save hundreds per month.
  • Consider a piggyback loan (80-10-10) to avoid PMI: 80% first mortgage, 10% second mortgage, 10% down.
  • Lender-paid PMI (LPMI) is an alternative where the lender covers PMI in exchange for a higher rate โ€” sometimes cheaper long-term.
  • You can request PMI removal when you reach 80% LTV through payments or appreciation (appraisal required).
  • Making extra payments accelerates PMI removal โ€” even small extra amounts reduce the timeline.
  • FHA loans have MIP (mortgage insurance premium) which works differently and cannot be removed on most newer FHA loans.

Understanding LTV and PMI Rates

Loan-to-value ratio is one of the main drivers of PMI pricing. Higher LTVs generally mean higher insurance costs because the lender is taking more risk relative to the property value. This worksheet uses simplified ranges to show that directional relationship, not insurer-specific pricing tables.

The Cost of PMI Over Time

Even when the monthly PMI charge looks manageable, the cumulative cost over several years can be material. That is why many borrowers compare different down-payment amounts, extra-principal strategies, and possible PMI-removal timing before finalizing the loan structure.

PMI Removal Strategies

Borrowers often evaluate three paths: waiting for scheduled amortization, making extra principal payments, or asking the servicer about updated-value reviews when the property has appreciated. The right path depends on the loan documents, servicer standards, and the cost of any new appraisal or review.

Sources & Methodology

Last updated:

Methodology

This worksheet estimates an annual PMI rate from a simplified internal grid based on the entered loan-to-value ratio and credit-score bucket, then converts that estimate into a monthly PMI amount. It separately projects the 80% and 78% loan-to-value milestones using the entered rate and term.

The PMI estimate is directional only. Actual mortgage-insurance pricing varies by insurer, borrower profile, occupancy, coverage level, and lender overlays.

Sources

Frequently Asked Questions

  • PMI typically costs 0.3% to 1.5% of the loan amount per year. On a $350,000 loan, that is $87 to $437 per month. Your exact rate depends on your LTV ratio and credit score โ€” higher LTV and lower credit scores mean higher PMI rates.