What Is PMI? How Private Mortgage Insurance Works and How to Avoid It

What Is Private Mortgage Insurance (PMI)?

Private mortgage insurance (PMI) is an insurance policy that protects the mortgage lender — not you — in case you default on your loan. It is required on conventional mortgages whenever the borrower makes a down payment of less than 20% of the home's purchase price. The logic from the lender's perspective is straightforward: a smaller down payment means the borrower has less equity at stake, which statistically increases the risk of default.

PMI is provided by private insurance companies (hence the name) such as MGIC, Radian, Essent, and Genworth. The cost is passed directly to the borrower, typically as a monthly premium added to the mortgage payment. While PMI enables millions of people to buy homes with as little as 3-5% down, it represents a significant ongoing cost that provides no coverage or benefit to the homeowner.

Understanding PMI is essential for making informed decisions about your down payment strategy. Use our down payment calculator to see how different down payment amounts affect your PMI costs and total monthly payment.

How Much Does PMI Cost?

PMI typically costs between 0.5% and 1.5% of the original loan amount per year. The exact rate depends on several factors:

• Credit score: This is the single biggest factor. Borrowers with a 760+ credit score might pay 0.3-0.5% annually, while those with a 680 score could pay 0.8-1.2% or more.
• Down payment size: A 15% down payment results in lower PMI rates than a 5% down payment because the lender's risk is lower.
• Loan amount: Larger loans may have different rate tiers.
• Loan type: Fixed-rate mortgages generally have lower PMI rates than adjustable-rate mortgages.
• PMI type: Monthly, single-premium, and lender-paid PMI all have different cost structures.

PMI Cost Examples

Here is what PMI might cost on a $350,000 home with various down payment amounts, assuming a good credit score (720-740):

• 5% down ($17,500): Loan of $332,500, PMI at ~0.9% = $249/month ($2,993/year)
• 10% down ($35,000): Loan of $315,000, PMI at ~0.7% = $184/month ($2,205/year)
• 15% down ($52,500): Loan of $297,500, PMI at ~0.5% = $124/month ($1,488/year)

These costs can add up substantially over time. If you pay PMI for 7 years (the average before removal) at $200/month, that is $16,800 in insurance that provided no direct benefit to you. This is why understanding your options for avoiding or eliminating PMI is so financially important.

Types of PMI

Not all PMI is structured the same way. Understanding the different types helps you choose the most cost-effective option for your situation.

Borrower-Paid Monthly PMI (BPMI)

This is the most common type. You pay a monthly premium that is added to your mortgage payment. The advantage is that it can be canceled once you reach 20% equity. The disadvantage is the ongoing monthly cost.

Single-Premium PMI (SPMI)

Instead of monthly payments, you pay the entire PMI cost upfront as a lump sum at closing. On a $300,000 loan, this might be $5,000 to $8,000. The advantage is no monthly PMI payment, which lowers your monthly housing cost and can help you qualify for a larger loan. The disadvantage is the higher upfront cost, and the premium is typically non-refundable if you sell or refinance early.

Lender-Paid PMI (LPMI)

The lender pays the PMI premium but charges you a higher interest rate to compensate — typically 0.25% to 0.50% higher. You will never see a PMI line item on your statement, but you are effectively paying for it through the elevated rate. The critical disadvantage is that LPMI cannot be removed. The higher rate stays for the life of the loan unless you refinance. Over a 30-year term, LPMI can cost more than borrower-paid monthly PMI.

Split-Premium PMI

This hybrid approach combines an upfront payment at closing with reduced monthly premiums. It can be a good middle ground if you want to lower your monthly payment but do not have enough cash for the full single premium.

When Is PMI Required?

PMI is required on conventional loans (those not backed by the government) whenever the loan-to-value (LTV) ratio exceeds 80%. In simple terms, if your down payment is less than 20% of the purchase price, you will need PMI.

Here is how LTV is calculated:

LTV = (Loan Amount / Home Value) x 100

For a $400,000 home with a $40,000 down payment (10%), your loan is $360,000 and your LTV is 90%. Since 90% exceeds 80%, PMI is required.

It is important to note that PMI applies specifically to conventional loans. Government-backed loans have their own mortgage insurance programs with different rules, which we cover in the PMI vs. MIP section below.

How to Remove PMI

The good news about PMI is that it is temporary — at least on conventional loans. Federal law provides specific rules for when PMI must be removed.

The Homeowners Protection Act (HPA)

The Homeowners Protection Act of 1998 establishes two key thresholds:

1. Borrower-requested cancellation at 80% LTV: You have the right to request PMI cancellation when your loan balance reaches 80% of the original home value. You must be current on payments and may need to demonstrate that your property has not declined in value.
2. Automatic termination at 78% LTV: Your lender is legally required to automatically cancel PMI when your loan balance reaches 78% of the original purchase price, based on the original amortization schedule. You must be current on payments.

Note the important distinction: the 80% threshold requires you to actively request cancellation, while the 78% threshold is automatic. If you do nothing, you will continue paying PMI until it is automatically terminated at 78%.

Reaching 20% Equity Faster

You do not have to wait for the natural amortization schedule to reach 80% LTV. There are several ways to accelerate the process:

• Make extra principal payments. Even an extra $200-300 per month directed to principal can help you reach 80% LTV years earlier. Use our mortgage calculator to model the impact of extra payments.
• Home value appreciation. If your home has increased in value since purchase, your effective LTV may already be below 80%. You can request a new appraisal to prove this. For example, if you bought a home for $300,000 with 10% down ($270,000 loan) and the home is now worth $350,000, your LTV is 270,000 / 350,000 = 77.1% — below the 80% threshold.
• Home improvements. Strategic renovations that increase your home's appraised value can help you reach the 20% equity mark sooner. Kitchen and bathroom remodels, adding a bedroom, or finishing a basement are common value-adding improvements.

Steps to Request PMI Removal

1. Confirm your loan balance has reached 80% LTV (based on the original value or current appraised value, depending on your lender's policy)
2. Contact your lender in writing to request PMI cancellation
3. Provide proof that the property value has not declined (may require a new appraisal at your expense, typically $300-600)
4. Demonstrate a good payment history (usually no late payments in the past 12-24 months)
5. Pay any outstanding balance adjustments

PMI vs. MIP: Understanding FHA Mortgage Insurance

Many home buyers confuse PMI with MIP (Mortgage Insurance Premium), but they are different programs with significantly different rules.

FHA MIP Structure

FHA loans, backed by the Federal Housing Administration, require their own form of mortgage insurance called MIP. It has two components:

• Upfront MIP (UFMIP): 1.75% of the loan amount, paid at closing (usually rolled into the loan balance). On a $300,000 loan, this is $5,250.
• Annual MIP: 0.45% to 1.05% of the loan amount per year, paid monthly. The exact rate depends on the loan amount, term, and LTV ratio. For a typical 30-year FHA loan with less than 5% down, the annual rate is 0.85%.

The Critical Difference: MIP Duration

For FHA loans originated after June 3, 2013:

• If you put less than 10% down, MIP lasts for the entire life of the loan. It cannot be removed regardless of how much equity you build.
• If you put 10% or more down, MIP can be removed after 11 years.

This is a major disadvantage of FHA loans compared to conventional loans with PMI. The only way to eliminate lifetime MIP on an FHA loan with less than 10% down is to refinance into a conventional loan once you have 20% equity.

Which Is Cheaper?

For borrowers with good credit (720+), conventional loans with PMI are almost always cheaper than FHA loans with MIP over the long term. FHA loans tend to be more cost-effective for borrowers with lower credit scores (below 680) or those who can only make a very small down payment (3.5%). Use our mortgage calculator to compare the total costs of both options for your specific situation.

Strategies to Avoid PMI Entirely

If the cost of PMI troubles you, here are proven strategies to avoid it:

1. Save for a 20% Down Payment

The most straightforward approach. On a $350,000 home, 20% is $70,000. While this requires substantial savings, it eliminates PMI entirely and gives you immediate equity. It also results in a lower monthly payment since you are borrowing less. Check our down payment reference to see the exact amounts needed for various home prices.

2. Piggyback Loans (80-10-10)

A piggyback loan structure uses two mortgages simultaneously: a first mortgage for 80% of the home price, a second mortgage (home equity loan or HELOC) for 10%, and a 10% down payment from you. Since the first mortgage is exactly 80% LTV, no PMI is required. The second mortgage typically has a higher interest rate, so you need to compare the combined cost against a single mortgage with PMI.

3. VA Loans (for eligible veterans)

VA loans, available to eligible military service members, veterans, and surviving spouses, require no mortgage insurance regardless of the down payment amount — even with 0% down. There is a one-time VA funding fee (1.25% to 3.3% of the loan amount), but this is significantly less expensive than years of PMI or MIP.

4. USDA Loans (for rural areas)

USDA loans for homes in eligible rural areas do not require traditional PMI, though they do have a guarantee fee (1% upfront and 0.35% annually) that is typically less expensive than PMI.

5. Physician and Professional Loans

Some lenders offer specialized mortgage programs for doctors, dentists, attorneys, and other high-earning professionals that waive PMI requirements, even with low down payments. These programs are designed for borrowers with high income potential but limited current savings (often due to student loan debt).

Is It Worth Paying PMI to Buy Sooner?

Despite the cost, PMI is not always a bad deal. Here is the key question: is the cost of PMI over the time you will pay it less than the benefit of buying now rather than waiting to save 20%?

Consider this scenario: you want to buy a $350,000 home. You have $17,500 saved (5%). If you wait three more years to save $70,000 (20%), but home prices appreciate 4% annually during that time, the same home could cost $394,000. You would need $78,800 for 20% down instead of $70,000.

Meanwhile, buying now with 5% down and PMI of $250/month means you pay approximately $9,000 in PMI over three years (assuming you reach 80% LTV through payments and appreciation by then). But you also build equity from day one and lock in today's price. In many housing markets, buying sooner with PMI has been the financially superior choice.

The decision depends on your local market conditions, how long you plan to stay, and your personal financial situation. Run the numbers carefully using our mortgage calculator to compare both scenarios.