The basic formula for PMI

Your monthly PMI payment is the result of three numbers: your loan amount, your down payment percentage, and your lender's PMI rate. The calculation works like this: take your original home price, subtract your down payment, then multiply that loan amount by your annual PMI rate, and divide by 12 to get the monthly cost.

In concrete terms: if you bought a $300,000 home with $30,000 down (10 percent), your loan is $270,000. If your lender's PMI rate is 0.55 percent annually, you multiply $270,000 by 0.0055 to get $1,485 per year, then divide by 12 to get $123.75 per month. That number sits on top of your principal, interest, taxes, and insurance.

The rate itself varies by lender and by your credit profile. Two borrowers with identical loans can pay different PMI amounts because lenders price PMI based on risk. A borrower with a 620 credit score and 5 percent down will pay more than someone with a 750 score and 10 percent down, even if the loan size is the same.

Key Takeaways

  • PMI cost depends on three factors: your loan amount, your down payment percentage, and the rate your lender assigns based on your credit and risk profile.
  • The annual PMI rate typically ranges from 0.3 to 1.86 percent of your loan amount, depending on how much you put down and your credit score.
  • You can calculate your monthly PMI by multiplying your loan amount by the annual rate, then dividing by 12.
  • Your lender must disclose the PMI rate in writing before closing, usually in the Loan Estimate or Closing Disclosure document.
  • PMI drops off automatically once your loan balance reaches 78 percent of the original home value, though you can request removal earlier if you have paid down to 80 percent.

Where to find your PMI rate

Your lender provides the PMI rate in writing before you close. Look for it in two places: the Loan Estimate, which you receive within three days of explore, and the Closing Disclosure, which arrives three days before closing. Both documents list PMI as a separate line item under insurance costs.

The Loan Estimate shows the estimated monthly PMI payment and the annual rate as a percentage. The Closing Disclosure shows the final rate after underwriting is complete. If the rate on the Closing Disclosure is higher than the Loan Estimate, ask your lender why—rates can shift if your credit score dropped or if you reduced your down payment during the process.

If you are shopping between lenders, PMI rates are one of the easiest costs to compare directly. Request the Loan Estimate from each lender and line up the PMI percentages side by side. A difference of 0.25 percent on a $270,000 loan adds up to about $67.50 per month over the life of the mortgage.

How down payment percentage affects your PMI cost

The lower your down payment, the higher your PMI rate. This is because you are borrowing a larger percentage of the home's value, which increases the lender's risk. The relationship is not linear—the jumps are steeper at the lower end.

A borrower with a 5 percent down payment might pay 1.86 percent annually in PMI, while someone with 10 percent down might pay 1.09 percent, and someone with 15 percent down might pay 0.84 percent. On a $300,000 home, that means the 5 percent down borrower pays roughly $279 per month in PMI, the 10 percent borrower pays $163 per month, and the 15 percent borrower pays $126 per month. The difference compounds over years.

This is why some borrowers choose to put down more than the minimum required. If you have the cash, moving from 5 percent to 10 percent down reduces your monthly PMI by about $116 on a $300,000 purchase. Whether that trade-off makes sense depends on what else you could do with that money and your interest rate environment.

Credit score impact on PMI pricing

Lenders use your credit score to assign risk categories, and each category has its own PMI rate. A borrower with a 740 credit score and 10 percent down might pay 0.84 percent annually, while a borrower with a 680 score and the same 10 percent down might pay 1.19 percent. That is a difference of about $95 per month on a $270,000 loan.

The credit score matters because it predicts default risk. A higher score suggests you have paid bills on time and managed debt responsibly. Lenders price PMI to reflect that history. If your credit improved between the time you started the mortgage process and closing, ask your lender to re-pull your credit and recalculate the rate—some will do this at no cost.

This is also why paying down credit card balances before explore for a mortgage can reduce your PMI cost. Even a 30 to 50 point improvement in your score can move you into a lower PMI tier and save you money each month.

PMI removal and when it stops

PMI is not permanent. Federal law requires lenders to remove PMI automatically once your loan balance drops to 78 percent of the original home purchase price. If you bought for $300,000, PMI drops off when you owe $234,000 or less.

The timeline depends on your interest rate, your down payment, and how quickly you pay down principal. A borrower with a 3 percent interest rate and 10 percent down might reach 78 percent loan-to-value in 8 to 10 years. A borrower with a 6 percent rate and 5 percent down might take 12 to 15 years. Your lender can calculate the exact payoff date based on your specific loan.

You can also request PMI removal earlier if you reach 80 percent loan-to-value—that is, if you owe $240,000 on a $300,000 home. You will need to request this in writing and may need to pay for a new appraisal to prove the home's value has not dropped. Some lenders waive the appraisal if you have paid on time for at least two years.

Using an online PMI calculator

Several mortgage calculators let you estimate PMI by entering your home price, down payment, and credit score range. These tools use typical PMI rates for each credit tier, so the result is an estimate, not your actual cost. Your lender's rate may be higher or lower depending on their pricing and the specific details of your loan.

The calculator approach is useful for comparing scenarios—what if you put down 10 percent instead of 5 percent, or what if you waited to buy until your credit improved. It gives you a ballpark figure to work with while you are still in the shopping phase. Once you have a Loan Estimate from an actual lender, use that number instead, because it reflects your real rate.

Be cautious of calculators that promise precision. PMI rates change based on market conditions and lender appetite. A rate that was accurate six months ago may not be accurate today. Use online tools to understand the direction and magnitude of change, not as a substitute for the lender's written quote.

Frequently Asked Questions

Can I pay PMI upfront instead of monthly?

Yes. Some lenders offer the option to pay PMI as a lump sum at closing instead of spreading it across monthly payments. This is called single premium PMI. The upfront cost is higher than the total of all monthly payments, but it eliminates the monthly expense. Whether this makes sense depends on your cash position and how long you plan to stay in the home.

What if my PMI rate seems too high compared to other lenders?

Shop around. PMI rates vary by lender, and a difference of 0.25 to 0.5 percent is common. Request Loan Estimates from at least three lenders and compare the PMI line item directly. If one lender's rate is significantly higher, ask why—it could be their pricing model, or it could reflect a difference in how they assessed your credit or down payment.

Does PMI explore to FHA loans?

FHA loans use mortgage insurance instead of PMI, but the concept is similar—you pay an insurance premium because you are putting down less than 20 percent. FHA insurance costs are typically higher than conventional PMI and have different removal rules. FHA insurance with less than 10 percent down is permanent for the life of the loan.

Will my PMI payment change if interest rates drop?

PMI itself does not change if rates drop, but your total monthly payment might if you refinance. When you refinance, you get a new loan with a new PMI rate based on your current credit score and the new loan amount. If rates have dropped and your credit improved, your new PMI rate could be lower than your original one.

How is PMI different from homeowners insurance?

PMI protects the lender if you default; homeowners insurance protects your property and liability. PMI is required only if you put down less than 20 percent. Homeowners insurance is required by all lenders, regardless of down payment. Both appear as separate line items on your monthly mortgage statement.