PMI Cancellation Calculator

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Reviewed by: Mark Wilson, Certified Mortgage Professional
Mark has over a decade of experience in residential mortgage underwriting and ensuring borrower compliance with federal PMI rules and cancellation procedures.

The **PMI Cancellation Calculator** helps you determine if your mortgage is eligible to eliminate Private Mortgage Insurance (PMI). Eligibility is based on reaching a **Loan-to-Value (LTV) Ratio of 80% or below**, meaning you have at least 20% home equity. Enter any three of the key variables (Value, Loan Balance, Equity, or LTV Ratio) to solve for the missing one and check your status.

PMI Cancellation Calculator

Check your eligibility to stop paying Private Mortgage Insurance.

LTV & Equity Formulas for PMI

PMI cancellation hinges on your LTV Ratio (Q). The following formulas show the fundamental relationships between your home’s value (F), loan balance (V), and equity (P).

Fair Market Value ($) (F):

F = Loan Balance (V) + Home Equity (P)


Required Loan Balance ($) (V):

V = F × [ Q / 100 ]


Home Equity ($) (P):

P = F – V


LTV Ratio (%) (Q):

Q = [ V / F ] × 100

Formula Source: Investopedia: How to Cancel PMI on Your Mortgage

Variables Explained

  • F (Current Home Value): The most recent appraised or market value of your property ($).
  • V (Current Loan Balance): The remaining amount owed on your mortgage principal ($).
  • P (Home Equity): The cash value of your home you currently own (F minus V).
  • Q (LTV Ratio): The ratio of your loan balance to your home’s value, expressed as a percentage (%).

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What is PMI Cancellation?

PMI (Private Mortgage Insurance) is required on conventional loans when the borrower makes a down payment of less than 20%, resulting in an LTV ratio above 80%. This insurance protects the lender against losses if the borrower defaults. The cancellation process allows a borrower to stop paying this monthly insurance premium once their home equity reaches the required threshold, saving them significant money.

Under the Homeowners Protection Act (HPA), lenders must automatically cancel PMI when the LTV ratio reaches 78% of the home’s *original* value. However, a borrower can *request* cancellation when the LTV ratio reaches 80% of the *current* appraised value, often requiring a new home appraisal.

How to Check PMI Eligibility (Example)

Let’s find the eligibility for a home currently valued at \$400,000 (F) with a \$310,000 Loan Balance (V).

  1. Apply the LTV Formula:

    LTV Ratio (Q) = Loan Balance (V) / Value (F) = \$310,000 / \$400,000

  2. Calculate Decimal Ratio:

    Ratio = $\mathbf{0.775}$

  3. Convert to Percentage:

    Q = 0.775 × 100 = $\mathbf{77.5\%}$

  4. Determine Eligibility:

    Since the LTV is 77.5%, which is below the 80% threshold, the borrower is **eligible** to request PMI cancellation.

Frequently Asked Questions (FAQ)

What is the difference between automatic and borrower-requested cancellation?

Automatic cancellation occurs at 78% LTV of the original home price, per federal law. Borrower-requested cancellation can be made at 80% LTV of the current home value, often requiring a new appraisal to prove the higher value.

Can I use a new appraisal to cancel PMI?

Yes, if your home value has increased significantly since purchase, you can obtain a new appraisal. If this new valuation brings your LTV down to 80% or below, you can request cancellation.

Does PMI cancellation apply to FHA loans?

For most FHA loans originated after 2013 with a down payment less than 10%, the mortgage insurance premium (MIP) is typically required for the entire life of the loan and cannot be canceled without refinancing.

What is the 80% LTV Rule?

The 80% LTV rule is the industry standard threshold where the lender’s risk is considered low enough to justify removing the Private Mortgage Insurance requirement.

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