What Is PMI and How Does Private Mortgage Insurance Work?
What private mortgage insurance (PMI) is, why it exists, how it relates to your down payment and equity, and how it differs from FHA mortgage insurance.
- Private mortgage insurance (PMI) protects the lender — not the borrower — if you default on a conventional loan with a smaller down payment.
- PMI is specific to conventional loans. FHA loans use a different product, the FHA mortgage insurance premium (MIP), with its own separate rules.
- Under the Homeowners Protection Act, you can generally request PMI cancellation once your loan balance reaches 80% of your home's original value, and it must generally terminate automatically at 78%, if you're current on payments.
- FHA mortgage insurance often works differently — for many FHA loans it can last for the life of the loan rather than cancel at a set equity threshold. Rules vary by case number date and down payment, so check your specific loan.
This article is for general informational purposes and does not constitute financial, insurance, legal, or tax advice.
Table of Contents
- What Private Mortgage Insurance Is
- Why PMI Exists: The Conventional Loan Context
- The Relationship With Down Payment and Equity
- How PMI May Affect Your Monthly Housing Cost
- When PMI Can Be Cancelled or Removed
- PMI vs. FHA Mortgage Insurance: Not the Same Product
- Questions Worth Asking Your Lender
- PMI Basics Checklist
If your down payment is on the smaller side, there’s a good chance your monthly mortgage payment includes a line item you didn’t fully expect: mortgage insurance. Here’s what private mortgage insurance actually is, why it exists, and — critically — how it differs from FHA mortgage insurance, which is a genuinely different product with its own separate rules.
What Private Mortgage Insurance Is
Private mortgage insurance (PMI) is insurance that protects a lender — not you — if you default on a conventional mortgage loan (a loan not backed by a government agency like FHA or VA). It exists because a lender takes on more risk when a borrower puts down less money upfront, and PMI offsets some of that added risk.
This is a common point of confusion worth stating plainly: PMI does not protect the borrower. It doesn’t pay off your loan if you lose your job, and it doesn’t build you any equity or benefit. It exists purely to protect the lender’s financial exposure.
Why PMI Exists: The Conventional Loan Context
PMI is specifically tied to conventional loans — loans that aren’t insured or guaranteed by a government agency. Conventional lenders generally require PMI when a borrower’s down payment falls below a certain threshold, commonly discussed as 20% of the home’s value, though exact requirements vary by lender and specific loan program.
The Relationship With Down Payment and Equity
The core logic of PMI ties directly to loan-to-value ratio (LTV) — how much you owe relative to the home’s value. A smaller down payment means a higher LTV (you’re borrowing a larger share of the home’s value), which generally means more risk for the lender and, often, a PMI requirement. As you pay down your loan — or as your home’s value rises — your LTV improves, which is exactly what eventually allows PMI to be cancelled (more on that below).
How PMI May Affect Your Monthly Housing Cost
PMI adds to your overall housing cost on top of principal, interest, taxes, and homeowners insurance. The exact amount varies by lender, loan size, your credit profile, and your down payment — there’s no single standard figure that applies across all borrowers, so this is a number to get directly from a lender rather than assume.
Possible Payment Structures
PMI isn’t always structured the same way. Depending on the lender and loan, you may see:
- Monthly premium — the most common structure, added to your regular mortgage payment
- Upfront premium — a one-time cost paid at closing
- Split premium — a combination of a smaller upfront cost and a reduced monthly premium
- Lender-paid PMI — where the lender covers the PMI cost but typically charges a higher interest rate in exchange
Ask your lender specifically which structure applies to your loan, since it meaningfully changes both your closing costs and your ongoing monthly payment. If PMI applies to your loan, it should also appear in the projected monthly payment and cost sections of your Loan Estimate — worth checking closely when you compare offers.
When PMI Can Be Cancelled or Removed
This is where the Homeowners Protection Act comes in — federal law that gives conventional-loan borrowers specific rights to end PMI once they’ve built enough equity.
- Borrower-requested cancellation (80%): You can generally ask your servicer to cancel PMI once your principal balance is scheduled to reach 80% of your home’s original value, provided you’re current on payments, have no other liens on the property, and can show the home’s value hasn’t dropped below its original purchase or appraised value.
- Automatic termination (78%): PMI must generally terminate automatically once your balance reaches 78% of the original value, as long as you’re current on your payments.
- Midpoint termination: Separately, your lender must generally end PMI the month after you reach the midpoint of your loan’s amortization schedule (for example, after 15 years on a 30-year loan), regardless of your loan-to-value ratio at that point, provided you’re current on payments.
Exact procedures can still vary somewhat by servicer, and Fannie Mae or Freddie Mac loans may offer terms at least as favorable as — though not less favorable than — these federal minimums. Confirm the specific process with your loan servicer.
PMI vs. FHA Mortgage Insurance: Not the Same Product
This distinction matters, and it’s easy to get wrong: PMI and FHA mortgage insurance are different products, tied to different loan types, with different rules.
| Conventional PMI | FHA Mortgage Insurance (MIP) | |
|---|---|---|
| Applies to | Conventional loans | FHA-insured loans |
| Typical down payment context | Often required below roughly 20% down (varies by lender) | Often available with lower down payments |
| Can it be cancelled? | Yes — generally at 80%/78% LTV under federal law | Depends on your loan’s case number date and original down payment — some FHA loans keep MIP for the life of the loan |
| Who sets the rules | Private insurers and lenders, within Homeowners Protection Act minimums | HUD/FHA program rules |
FHA mortgage insurance premium (MIP) generally includes both an upfront premium paid at closing and an ongoing annual premium. Whether MIP can be cancelled — and when — depends on factors including your loan’s FHA case number assignment date and your original down payment amount. Some FHA loans require MIP for the entire loan term unless the loan is refinanced. Because these rules are specific and have changed over time, check your loan’s exact terms with your servicer or HUD resources rather than assuming a general rule applies.
Questions Worth Asking Your Lender
- Does this specific loan require PMI, and if so, how is it structured?
- What is the estimated monthly PMI cost for my loan amount and credit profile?
- At what loan balance will PMI automatically terminate on my loan?
- What documentation will you need from me to request early cancellation?
- If I’m considering an FHA loan instead, how would its mortgage insurance rules differ for my situation?
PMI Basics Checklist
- Confirm whether your specific loan requires PMI and how it’s structured
- Ask your lender for the exact monthly or upfront PMI cost
- Track your loan-to-value ratio so you know when you may be eligible for cancellation
- If you have an FHA loan, ask specifically about your MIP cancellation rules rather than assuming PMI rules apply
- Keep records of on-time payments, which are required for most cancellation requests
Understanding PMI — and how it differs from FHA mortgage insurance — helps you evaluate the true cost of different loan options. For the bigger picture on how mortgage payments are structured, see our guide to how mortgages work, and for a full breakdown of upfront costs, see our guide to mortgage closing costs.
Frequently Asked Questions
Why do I have to pay PMI?
PMI is generally required on conventional loans when your down payment is below a certain threshold (commonly discussed as 20%, though requirements vary by lender and loan program). It protects the lender against loss if you default — not you as the borrower — which is why it doesn't provide any direct benefit or payout to you personally.
How is PMI usually paid?
PMI can be structured in different ways depending on the lender and loan — most commonly as a monthly premium added to your mortgage payment, but sometimes as an upfront premium at closing, a combination of both, or built into your interest rate. Ask your lender specifically which structure applies to your loan, since it affects your monthly payment differently.
When can I get PMI removed?
Under the Homeowners Protection Act, you can generally request cancellation once your principal balance is scheduled to reach 80% of your home's original value, provided you're current on payments, have no other liens, and can show the property hasn't declined in value. PMI must also generally terminate automatically once your balance reaches 78% of the original value, if you're current on payments. Your lender may have additional specific requirements, so confirm the process directly with your servicer.
Is PMI the same as FHA mortgage insurance?
No — they are different products with different rules, even though both are sometimes casually called 'mortgage insurance.' PMI applies to conventional loans and is generally cancellable once you reach sufficient equity. FHA mortgage insurance premium (MIP) applies to FHA-insured loans and, depending on your loan's case number date and original down payment, can potentially last for the entire life of the loan rather than cancel automatically at a set equity level.
Can I avoid PMI entirely?
It depends on your loan program, down payment, and lender. Putting down a larger amount, choosing certain loan structures, or using specific programs may avoid PMI, but each option has its own tradeoffs — including cost, eligibility requirements, and how it affects your rate. This is worth discussing directly with a lender rather than assuming a single approach applies to every borrower.
Does PMI protect me if I lose my job and can't pay?
No. PMI protects the lender's financial interest if you default — it is not a form of insurance that helps you make payments or protects your own finances. It's a common misconception, but PMI provides no direct benefit to the borrower.