PMI Explained: When You Pay It, How Much It Costs, and How to Get Rid of It

If you're buying a home and you can't put down 20%, the bank is going to charge you for Private Mortgage Insurance — PMI for short. It's one of those costs nobody warns you about until you're already at the closing table, and it's almost always more expensive than buyers expect.

The good news: PMI isn't permanent. It's not a fee, it's not a penalty, and you have more control over it than your lender will tell you. This guide breaks down exactly what PMI is, how it gets calculated, and the specific moves that can cut years (and thousands of dollars) off how long you pay it.

What PMI actually is

Private Mortgage Insurance is an insurance policy your lender takes out — and you pay for — in case you default on your loan. If you stop making payments and the bank has to foreclose, PMI covers the lender for the difference between what your house sells for and what you still owed.

Notice who benefits: the lender. Not you. PMI is purely protection for the bank against the higher risk of lending to a borrower with less than 20% equity. You're paying for someone else's insurance policy.

Why does it exist? Because statistically, borrowers with low down payments default more often. Lenders historically refused to lend to anyone without 20% down. PMI was the workaround that lets the bank say "yes" to lower-down-payment buyers while protecting themselves financially.

When you have to pay it

The trigger is simple: your loan-to-value (LTV) ratio is above 80%.

LTV is just your loan amount divided by the home's value. If you buy a $400,000 home with $40,000 down, your loan is $360,000 — meaning your LTV is 90% ($360k ÷ $400k). PMI is required.

If you'd put $80,000 down (20%) on the same home, your loan would be $320,000 — LTV of 80%. No PMI.

This rule applies to conventional loans, which are most mortgages issued by banks. Government-backed loans have different rules:

• FHA loans require mortgage insurance regardless of down payment, and it's structured differently (called MIP)
• VA loans don't require monthly PMI but charge an upfront funding fee
• USDA loans charge a similar annual guarantee fee

For the rest of this guide, we're talking about conventional PMI — the most common variety.

How much PMI actually costs

PMI typically runs 0.3% to 1.5% of your loan amount per year, paid as a monthly addition to your mortgage payment.

What determines where you fall in that range?

• Credit score — the single biggest factor. A 760+ score might get you 0.3-0.5%; a 620 score might be 1.2-1.5%.
• Loan-to-value ratio — closer to 80% LTV means lower PMI. Higher LTV (like 95% or 97%) means higher PMI.
• Loan term — 30-year loans have higher PMI than 15-year loans.
• Debt-to-income ratio — higher DTI can push PMI up.

Real numbers

Let's run the math on a $300,000 home with 5% down:

• Loan amount: $285,000
• PMI rate (mid-range, 0.7%): $1,995 per year
• Monthly PMI:
  $166

  per month

If you have great credit and qualify for the low end (0.3%): about $71/month. If your credit is shaky and you're at the high end (1.5%): about $356/month.

That difference — $71 vs $356 — is real money. Improving your credit score before buying can be worth more than additional down payment savings, just because it reduces PMI so dramatically.

How long you have to pay PMI

This is where most homeowners get surprised. PMI doesn't last forever, but it lasts longer than most people think — and the rules around getting rid of it are confusing on purpose.

There are three exit points to know:

1. Automatic termination at 78% LTV

By federal law (the Homeowners Protection Act of 1998), your lender must automatically cancel PMI when your loan balance reaches 78% of the original purchase price. This is based on your scheduled amortization — meaning, when you would naturally get there through regular monthly payments, not extra principal.

For a $400,000 home with 10% down ($360,000 loan), automatic termination happens when you owe $312,000. On a 30-year mortgage, that's around year 10-11 of regular payments.

2. You can request cancellation at 80% LTV

You don't have to wait for automatic termination. Once you can prove your LTV is at 80%, you can request that PMI be removed. The lender is required to consider it.

Requirements to request:

• Submit the request in writing
• Be current on your payments
• Have no payments more than 60 days late in the last 24 months, or 30 days late in the last 12 months
• Possibly pay for a new appraisal (lender's choice)

3. Refinancing eliminates it

If interest rates drop or your home appreciates significantly, refinancing into a new loan with under 80% LTV gets rid of PMI immediately. This is most useful if rates have dropped enough to make refinance worthwhile anyway.

Three ways to make PMI disappear faster

The fastest way out of PMI is to lower your LTV ratio. There are three legitimate strategies:

Strategy 1: Make extra principal payments

Every extra dollar you put toward principal pushes your LTV down faster. Even modest extra payments add up:

• $200 extra per month on a $285,000 loan saves ~3 years of PMI payments
• That's roughly $6,000 in PMI savings over the life of the loan
• Plus the interest savings, which often exceed the PMI savings

The trick: extra payments must be designated "principal only." Otherwise the bank may apply them to next month's payment, which doesn't reduce your principal balance.

Strategy 2: Get a new appraisal

If your home has appreciated significantly since you bought it, your LTV may have dropped without you paying anything extra. Most markets see 3-5% annual appreciation in normal years — sometimes much more.

If you bought a $400,000 home with 10% down, and it's now worth $475,000, your LTV has dropped from 90% to 76% just from appreciation. You qualify to request PMI removal.

The catch: you usually pay for the appraisal ($400-600) and the lender has to agree the appraisal is valid. Some lenders require you to have owned the home for a minimum period (often 2 years) before they'll consider this.

Strategy 3: Refinance into a new loan

If your equity has grown enough to put you under 80% LTV — through some combination of payments and appreciation — refinancing into a new loan eliminates PMI immediately.

This only makes sense if either:

• Rates have dropped enough to also save you money on interest
• You're going to refinance anyway for another reason

Refinancing costs 2-4% of the loan amount in closing costs. Make sure the PMI savings + interest savings exceed those costs.

Should you avoid PMI by putting 20% down?

This depends entirely on your situation. The conventional wisdom is "always put 20% down to avoid PMI." But this isn't always optimal.

Case for putting 20% down:

• You eliminate PMI completely from day one
• Lower monthly payment makes the home more affordable long-term
• You have less risk if home values drop (you're not underwater immediately)
• You'll qualify for better interest rates

Case for putting less than 20% down:

• You can buy years earlier (saving 20% takes years for most people)
• During that saving time, home prices and rates may rise — costing you more than PMI would have
• You preserve cash for emergencies, renovations, or investments
• PMI ends eventually; never owning a home you wanted is permanent

The honest math

If saving an extra $40,000 for full 20% down takes you 5 years, and home prices appreciate 4% per year during that time, the home you're trying to buy now goes from $400,000 to $487,000. You also missed 5 years of building equity.

Meanwhile, paying PMI on the smaller down payment might cost you $8,000-$12,000 total over the 5-7 years until you can remove it.

For many buyers, buying now with PMI beats waiting to save 20% — purely on the math, ignoring the value of homeownership.

The honest answer: run your specific numbers. There's no universal right answer.

The bottom line

PMI feels like the lender is punishing you for not having 20% saved. It's actually just the price of admission for buying with less down — and it's often worth paying.

The key moves:

1. Know your number — calculate your LTV and know when you'll hit 80% and 78%
2. Make a plan to remove it — extra principal payments, appreciation tracking, or refinancing
3. Don't let the bank forget — request cancellation in writing when you hit 80%, don't wait for automatic termination at 78%

PMI can cost you $5,000-$20,000+ over the life of a loan if you ignore it. Or it can cost you a few thousand and disappear within 5-7 years if you actively manage it.

The choice is mostly yours.