PMI Calculator: Calculate Your Monthly Mortgage Insurance Cost

PMI Calculator: Calculate Your Monthly Mortgage Insurance Cost

By Michael Thornton

March 18, 2025 at 05:31 AM

Private mortgage insurance (PMI) is required for conventional home loans when making a down payment less than 20%. Here's what you need to know about PMI costs and calculations.

PMI Cost Factors:

  • Loan size
  • Down payment amount
  • Credit score
  • Debt-to-income ratio

Annual PMI Rates by Credit Score:

  • 760+ : 0.46%
  • 740-759: 0.58%
  • 720-739: 0.70%
  • 700-719: 0.79%
  • 680-699: 0.98%
  • 660-679: 1.23%
  • 640-659: 1.31%
  • 620-639: 1.50%

Example PMI Cost: For a $300,000 mortgage:

  • Annual cost: $1,380 to $4,500
  • Monthly cost: $115 to $375

How to Reduce PMI Costs:

  • Make a larger down payment
  • Improve your credit score
  • Lower your debt-to-income ratio
  • Shop around for lenders

Removing PMI:

  • Automatically terminates when loan balance reaches 78% of original home value
  • Can request removal when reaching 80% loan-to-value ratio
  • Make extra payments to reach these milestones faster

Calculating Your PMI: To estimate your PMI costs, you'll need:

  • Home purchase price
  • Down payment amount
  • Interest rate
  • Credit score
  • Loan term

PMI makes homeownership possible with smaller down payments, but consider if the additional monthly cost fits your budget. If not, either save for a larger down payment or look for homes in a lower price range.

Remember: A 20% down payment eliminates the need for PMI entirely.

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