Mortgage · 2026-07-14

What Is PMI? Private Mortgage Insurance Explained

What is PMI? Learn how private mortgage insurance works, when you need it, how much PMI costs, when you can remove it, and how to avoid PMI when buying a home.

Private mortgage insurance (PMI) is an additional cost that may apply when you buy a home with a conventional mortgage and make a down payment of less than 20%. PMI protects the lender—not the borrower—if the borrower stops making mortgage payments. Understanding what PMI is, how much it costs, when you can remove it, and how to avoid it can help you compare mortgage options and estimate the true cost of buying a home.

What Is PMI?

PMI stands for private mortgage insurance. It is insurance that protects a mortgage lender if a borrower defaults on a conventional home loan. PMI does not protect the homeowner from losing the home or eliminate the borrower’s responsibility to repay the mortgage. For many conventional mortgages, PMI may be required when the down payment is less than 20% of the home purchase price.

Who Does PMI Protect?

PMI primarily protects the lender, not the borrower. If the borrower defaults and the lender suffers a loss after foreclosure, mortgage insurance may help reduce the lender’s financial loss. The borrower still remains responsible for the mortgage according to the loan agreement.

Why Do Lenders Require PMI?

A smaller down payment means the borrower starts with less equity in the home. From the lender’s perspective, a higher loan-to-value ratio can represent greater risk. PMI helps lenders manage that risk and allows some borrowers to qualify for conventional mortgages without saving a full 20% down payment.

When Is PMI Required?

PMI is commonly required for conventional mortgages when the loan-to-value (LTV) ratio is above 80%, which generally means the borrower makes a down payment of less than 20%. However, PMI requirements vary by lender, loan program, borrower qualifications, and the specific mortgage terms.

PMI and a 20% Down Payment

A 20% down payment is a common benchmark for avoiding borrower-paid PMI on a conventional mortgage. For example, if a home costs $400,000, a 20% down payment would be $80,000, leaving a $320,000 mortgage balance before other financing considerations.

PMI Is Different From FHA Mortgage Insurance

Conventional loans may require private mortgage insurance (PMI), while FHA loans use mortgage insurance premiums (MIP) under FHA program rules. These are different forms of mortgage insurance with different eligibility, pricing, cancellation, and duration rules. Borrowers should compare the total cost of each loan program rather than looking only at the interest rate.

How Much Does PMI Cost?

The cost of PMI varies based on factors such as the borrower’s credit profile, down payment, loan amount, loan-to-value ratio, and lender or mortgage insurer requirements. PMI is commonly expressed as an annual percentage of the mortgage balance and is often divided into monthly payments.

What Affects Your PMI Cost?

Factors that may affect PMI pricing include your credit score, down payment percentage, loan-to-value ratio, loan type, property type, and the size of the mortgage. A larger down payment and stronger credit profile may reduce the cost of PMI in some cases.

How to Estimate Monthly PMI

A simplified estimate can be calculated by multiplying the mortgage balance by an estimated annual PMI rate and dividing by 12. For example, if a $320,000 mortgage had an assumed PMI rate of 0.5% per year, the estimated annual PMI would be $1,600, or about $133 per month. Actual PMI costs vary and should be confirmed with your lender or mortgage insurance provider.

How Long Do You Have to Pay PMI?

For many conventional mortgages, PMI is not intended to last for the entire loan term. Under applicable federal rules, borrowers may generally request PMI cancellation when the mortgage balance reaches 80% of the home’s original value, subject to eligibility requirements. Automatic termination may generally occur when the balance is scheduled to reach 78% of the original value, provided applicable conditions are met and the borrower is current on payments.

Requesting PMI Cancellation

If your mortgage balance reaches the required threshold, you may be able to request PMI cancellation from your loan servicer. Your servicer may have specific requirements regarding payment history, property value, and the status of the mortgage. Check your mortgage documents and contact your servicer for the exact requirements that apply to your loan.

PMI Removal Through Home Appreciation

In some situations, homeowners may build sufficient equity because the home increases in value. Depending on the loan terms and applicable lender requirements, a borrower may be able to request PMI cancellation based on the current property value. An appraisal or other valuation may be required.

How to Avoid PMI When Buying a Home

The most straightforward way to avoid borrower-paid PMI on a conventional mortgage is to make a sufficiently large down payment. However, avoiding PMI is not always the same as minimizing your total borrowing cost. A larger down payment may reduce PMI and mortgage interest, but it also requires more cash upfront.

Make a 20% Down Payment

Putting 20% down is a common strategy for avoiding PMI on a conventional mortgage. The trade-off is that saving a larger down payment may delay your home purchase or reduce the amount of cash available for emergencies, moving expenses, repairs, and other financial goals.

Compare Low-Down-Payment Loan Programs

Some mortgage programs allow qualified borrowers to purchase a home with a smaller down payment. However, these programs may use different forms of mortgage insurance or have different eligibility requirements. Compare the total monthly payment, upfront costs, mortgage insurance, interest rate, and long-term borrowing cost before choosing a loan.

Consider a Piggyback Loan

Some borrowers use a second mortgage, sometimes called a piggyback loan, to reduce the size of the first mortgage and potentially avoid traditional PMI. However, the second loan has its own interest rate, fees, and repayment requirements. Compare the combined cost of both loans with a conventional mortgage that includes PMI.

Improve Your Credit Profile

A stronger credit profile may help you qualify for better mortgage terms and, in some cases, lower PMI costs. Improving credit does not automatically eliminate PMI, but it can affect the overall cost of borrowing.

Request PMI Removal When Eligible

You may not need to avoid PMI entirely. Another strategy is to buy with a smaller down payment and remove PMI later when you meet the applicable cancellation requirements. This can allow you to purchase earlier while reducing the duration of the additional insurance cost.

Is PMI Always Bad?

No. PMI is an additional cost, but it can help some borrowers purchase a home without waiting until they have saved a 20% down payment. The financial question is not simply whether PMI is good or bad. Instead, compare the cost of PMI with the potential benefits of buying sooner, building home equity, and preserving cash for emergencies and other financial goals.

When PMI May Be Worth Considering

PMI may be reasonable when the borrower has stable income, adequate emergency savings, a manageable monthly payment, and a long-term plan to own the property. Buying sooner may also make sense if waiting to save a larger down payment would take several years and housing costs are expected to change.

When Waiting May Be Better

Waiting for a larger down payment may be preferable when PMI significantly increases your monthly housing cost, your emergency savings are insufficient, or the mortgage payment would stretch your budget. Avoiding PMI should not come at the expense of financial stability.

PMI vs FHA Mortgage Insurance: What Is the Difference?

PMI and FHA mortgage insurance are not the same. PMI is associated with many conventional mortgages and may be cancellable under applicable rules. FHA loans use an upfront mortgage insurance premium (UFMIP) and an annual mortgage insurance premium (MIP), with duration depending on factors such as the loan-to-value ratio and loan term. Because the rules differ, borrowers should compare the complete cost of conventional and FHA financing rather than assuming that one option is always cheaper.

Conventional Loan With PMI

A conventional loan with PMI may allow a borrower to make a down payment below 20%. Depending on the loan and borrower circumstances, PMI may later be cancelled or terminated when applicable requirements are met.

FHA Loan With MIP

FHA financing uses mortgage insurance premiums under FHA program rules. Depending on the original loan-to-value ratio and other factors, mortgage insurance may remain for the life of the loan unless the borrower refinances into another eligible loan program.

Which Is Cheaper: PMI or FHA MIP?

There is no universal answer. The better option depends on the borrower’s credit profile, down payment, loan amount, interest rate, mortgage insurance costs, upfront fees, and expected time in the home. Compare the total cost of the loan rather than focusing on mortgage insurance alone.

Should You Wait Until You Have 20% Down?

Not necessarily. Waiting until you have 20% down can reduce or eliminate PMI on a conventional mortgage, but it may also delay homeownership and require you to keep saving while housing costs and home prices change. The better decision depends on your income, savings, expected time in the home, mortgage payment, and financial reserves.

Buying With Less Than 20% Down

Buying with less than 20% down may allow you to purchase sooner and keep more cash available for emergencies and other financial goals. The trade-off is that you may pay PMI and have a larger mortgage balance.

Waiting to Reach 20% Down

Waiting can reduce the mortgage amount and potentially eliminate PMI. However, the financial benefit should be compared with the cost of waiting, including continued rent payments, potential changes in home prices, and the opportunity cost of holding additional cash for a down payment.

How to Decide if PMI Is Worth Paying

The best way to evaluate PMI is to compare the total cost of buying with and without PMI. Consider your down payment, mortgage rate, PMI cost, monthly payment, expected time in the home, emergency savings, and alternative uses for your cash. A smaller down payment may be reasonable if it preserves liquidity and the total monthly housing cost remains comfortably affordable.

Step 1: Calculate Your Down Payment

Determine how much cash you can comfortably put toward the home without exhausting your emergency savings or other financial reserves.

Step 2: Estimate Your PMI Cost

Ask your lender for an estimated PMI cost based on your credit profile, loan amount, and down payment. Use the estimate to calculate your total monthly housing payment.

Step 3: Compare the Total Mortgage Cost

Compare different down payment scenarios, including the mortgage balance, interest cost, PMI, property taxes, homeowners insurance, and other recurring housing expenses.

Step 4: Consider Your Time Horizon

If you expect to own the home for many years, PMI may be removable after you build sufficient equity. If you plan to move soon, the upfront and recurring costs of buying may deserve closer scrutiny.

PMI Frequently Asked Questions

Here are quick answers to common questions about private mortgage insurance.

What does PMI stand for?

PMI stands for private mortgage insurance. It is commonly associated with conventional mortgages when the borrower has less than 20% equity at the time of purchase.

Can PMI be removed?

In many cases, PMI on a conventional mortgage can be cancelled or terminated when applicable requirements are met. The exact process depends on the mortgage terms, applicable law, payment history, and the lender or servicer’s requirements.

Is PMI tax deductible?

The tax treatment of PMI can change over time and depends on current tax law and the borrower’s individual circumstances. Consult current IRS guidance or a qualified tax professional before assuming that PMI is deductible.

Do FHA loans have PMI?

FHA loans do not use conventional PMI. Instead, they generally require mortgage insurance premiums (MIP), which follow different rules for upfront and ongoing mortgage insurance.

Can you avoid PMI with less than 20% down?

Sometimes. Depending on the lender and loan program, borrowers may have alternatives such as certain low-down-payment programs or piggyback financing. These alternatives can have other costs, so compare the complete loan structure before choosing one.

Final Thoughts: Is PMI Worth It?

PMI is an additional mortgage cost, but it is not automatically a bad financial decision. It can help qualified borrowers purchase a home with a smaller down payment while preserving cash for emergencies and other goals. The key is to understand how much PMI costs, how long you may have to pay it, and how it affects your total housing expense. Before deciding whether to put 20% down or buy with a smaller down payment, compare the complete cost of each option and make sure the monthly payment fits comfortably within your budget.

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What is a home affordability calculator?

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