PMI Calculator
Calculate private mortgage insurance costs and when PMI drops off your loan. Enter values for instant results with step-by-step formulas.
Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer
PMI Calculator
Calculator
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Formula: Annual PMI = Loan Amount x PMI Rate; PMI drops at 80% LTV (Original Value)
Worked example — Monthly PMI: $150 | Total PMI Paid: ~$14,250 | PMI drops after ~7.9 years
Formula
Annual PMI = Loan Amount x PMI Rate; PMI drops at 80% LTV (Original Value)
PMI is calculated as a percentage of the loan amount, paid monthly. It automatically terminates when the loan balance reaches 78% of the original property value per the amortization schedule, or can be requested for removal at 80%.
Worked Examples
Example 1: First-Time Buyer with 10% Down
Problem:A buyer purchases a $400,000 home with 10% down ($40,000). The 30-year loan at 6.5% has a PMI rate of 0.5%. When does PMI drop off?
Solution:Loan Amount = $400,000 - $40,000 = $360,000 LTV = 360,000 / 400,000 = 90% Monthly P&I = $2,275.34 Annual PMI = $360,000 x 0.5% = $1,800 Monthly PMI = $1,800 / 12 = $150 PMI drops when balance reaches $320,000 (80% of $400,000) Drop-off: approximately month 95 (7.9 years)
Result:Monthly PMI: $150 | Total PMI Paid: ~$14,250 | PMI drops after ~7.9 years
Example 2: Buyer with 5% Down and Lower Credit
Problem:A buyer purchases a $350,000 home with 5% down ($17,500). PMI rate is 0.85% due to higher LTV and lower credit score.
Solution:Loan Amount = $350,000 - $17,500 = $332,500 LTV = 332,500 / 350,000 = 95% Monthly P&I = $2,101.63 Annual PMI = $332,500 x 0.85% = $2,826.25 Monthly PMI = $235.52 PMI drops when balance reaches $280,000 (80%) Drop-off: approximately month 130 (10.8 years)
Result:Monthly PMI: $235.52 | Total PMI Paid: ~$30,618 | PMI drops after ~10.8 years
Frequently Asked Questions
What is PMI and why is it required?
Private Mortgage Insurance (PMI) is insurance that protects the lender, not the borrower, in case the borrower defaults on the mortgage. PMI is required on conventional loans when the down payment is less than 20 percent of the home purchase price, resulting in a loan-to-value ratio above 80 percent. Lenders view higher LTV loans as riskier because the borrower has less equity invested in the property, making default more likely. PMI costs typically range from 0.3 to 1.5 percent of the original loan amount annually, depending on the loan-to-value ratio, credit score, and loan type. While PMI adds to monthly housing costs, it enables many borrowers to purchase homes sooner by allowing smaller down payments. Without PMI requirements, lenders would either refuse loans with less than 20 percent down or charge significantly higher interest rates.
How is PMI calculated and what affects the rate?
PMI rates are determined by several factors, with the loan-to-value ratio and borrower credit score being the most influential. Higher LTV ratios mean higher PMI rates because the lender has more exposure to potential loss. A borrower with a 95 percent LTV will pay significantly more than one with an 85 percent LTV. Credit score is equally important because it indicates default probability. Borrowers with credit scores above 760 may pay PMI rates as low as 0.3 percent, while those with scores below 680 could pay 1.0 to 1.5 percent or more. Other factors include the loan type (fixed vs adjustable), loan term, number of borrowers, and occupancy type (primary residence vs investment property). The annual PMI cost is divided by 12 and added to the monthly mortgage payment. Some lenders offer lender-paid PMI where the cost is embedded in a slightly higher interest rate.
When does PMI drop off my mortgage automatically?
Under the Homeowners Protection Act of 1998, lenders must automatically terminate PMI on conventional loans when the loan balance reaches 78 percent of the original property value based on the amortization schedule, assuming payments are current. Borrowers can also request PMI removal earlier once the balance reaches 80 percent of the original value, though the lender may require a clean payment history and a property appraisal confirming the home has not declined in value. For FHA loans, the rules differ significantly. FHA mortgage insurance premium (MIP) cannot be removed on loans with less than 10 percent down and must remain for the life of the loan. For FHA loans with 10 percent or more down, MIP is removed after 11 years. This permanent MIP is a major reason many borrowers refinance from FHA to conventional loans once they reach 80 percent LTV.
What strategies can help me eliminate PMI faster?
Several strategies can accelerate PMI removal and save thousands of dollars in insurance premiums. Making extra principal payments is the most direct approach because it reduces the loan balance faster, reaching the 80 percent LTV threshold sooner. Even an extra one hundred to two hundred dollars per month can shave years off PMI payments. If your home has appreciated significantly, you can request a new appraisal to demonstrate that your current LTV is below 80 percent based on the current market value. Home improvements that increase property value can also help when combined with a reappraisal. Refinancing to a new conventional loan is another option if you have at least 20 percent equity, though closing costs must be weighed against PMI savings. Some borrowers choose piggyback loans, using a second mortgage or home equity line to effectively make a 20 percent down payment and avoid PMI entirely from the start.
Is PMI tax deductible and how does it compare to other insurance?
PMI tax deductibility has been subject to congressional renewals and has fluctuated over the years. When available, the PMI deduction allows eligible taxpayers to deduct mortgage insurance premiums as mortgage interest on Schedule A, subject to income phase-outs typically starting at adjusted gross income of 100,000 dollars. Unlike homeowner insurance which protects the property and borrower against damage and liability, PMI exclusively protects the lender against borrower default. This is a critical distinction because borrowers pay for PMI but receive no direct benefit from it. The cost of PMI compared to other mortgage-related expenses can be substantial: on a 380,000 dollar loan at 0.5 percent PMI, the annual cost is 1,900 dollars or about 158 dollars monthly. Over the typical period before PMI drops off, total PMI costs can range from 10,000 to 30,000 dollars depending on the loan amount and how quickly principal is paid down.
Can I remove PMI from my mortgage?
Private mortgage insurance (PMI) is required on conventional loans when your down payment is less than 20%, adding $30-$70 per month per $100,000 borrowed. You have several paths to remove it. Under the Homeowners Protection Act, you can formally request cancellation once your loan-to-value ratio reaches 80% based on original purchase price — the lender may require a new appraisal to confirm value has not dropped. PMI is automatically terminated when amortization reduces the balance to 78% of the original purchase price. If home values in your area have risen significantly, refinancing to a new loan without PMI may be worthwhile. FHA loans issued after June 2013 with less than 10% down carry mortgage insurance premiums (MIP) for the life of the loan and cannot be removed without refinancing.
References
Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer · Editorial policy
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