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By nbkc bank | 06/30/2026
If you're buying a home with less than 20% down, you've probably come across PMI.
And if you're like most buyers, your first question is simple: how much is this actually going to cost me?
Private mortgage insurance (PMI) is one of those expenses that catches people off guard. It's not always clear how it's calculated, how long it lasts, or whether it meaningfully affects your decision to buy now versus wait.
The good news is that PMI is fairly straightforward once you see how the pieces fit together.
What is PMI?
PMI is insurance that protects the lender if a borrower defaults on the loan. It's typically required on conventional loans when you put down less than 20%.
From your perspective, PMI shows up as an additional monthly cost on top of your mortgage payment.
How Much PMI Usually Costs
The exact cost of PMI varies based on your loan and financial profile, but most borrowers will fall within a general range.
A common estimate is: 0.5% to 1% of your loan amount per year.
Here's what that looks like in a simple example:
Loan amount: $300,000
PMI at 0.6% annually: $1,800 per year
Monthly PMI: $150/month
Factors that Affect PMI
Your monthly costs from PMI on your home loan can shift depending on a few factors:
Credit score: Higher scores = lower PMI
Down payment: More money down = lower PMI
Loan type and structure: Different loans have different PMI solutions
The best way to think about PMI is as a scaled cost. It adjusts based on how strong your file is.
What Makes PMI Hard to Figure Out?
One reason PMI feels confusing is that it's not a fixed number across all borrowers. It would be much easier to estimate if it was a "flat fee," but that's not the case.
Two buyers with the same loan amount can have different PMI costs depending on their credit profile and how much they're putting down. That's why online estimates can feel inconsistent.
The important thing is to focus on your actual numbers when evaluating how it impacts your payment, and the best way to do that is work with a loan officer who you can trust to give you personalized support.
How Long Do You Have to Pay PMI?
For most conventional loans, PMI doesn't last forever. It typically drops off once you have 20% equity in your home, either through paying down your loan or through home value appreciation.
There are a few ways PMI can come off your mortgage payment:
Automatically when your loan reaches a certain balance
By requesting removal once you've reached enough equity
Through refinancing into a new loan structure
The timing depends on your loan and how your equity builds over time.
Should I Still Buy if I Will Have to Pay PMI?
PMI often gets framed as something to avoid at all costs, but in reality, it's more of a trade-off.
It can make sense to get a home loan with PMI if:
You want to buy sooner instead of waiting years to save 20% down
Home values are rising and delaying could cost more than PMI
Your monthly payment (including PMI) still fits comfortably in your budget
It may be less appealing to get a home loan with PMI if:
PMI significantly stretches your monthly payment
You're close to a 20% down payment already
Your timeline suggests you'd pay PMI for an extended period without meaningful benefit
The key is not just the cost, but what that cost allows you to do. Sometimes the highest value is in buying a house sooner rather than later. Other times, it may make the most sense to keep saving for 20% down.
What Buyers Often Miscalculate With PMI
The biggest mistake borrowers make with PMI is looking at it in isolation.
Instead of asking, "how much is PMI costing me?" it's more useful to ask:
What's my total monthly payment with PMI included?
How long will I likely be paying it?
What happens if I wait to avoid it vs. buying now?
In many cases, PMI is relatively small compared to movements in home prices or interest rates over time. If home values rise steadily, it could "cost" you more to wait.
Ways to Reduce or Avoid PMI on Your Home Loan
If PMI is a concern, there are a few common approaches:
Increase your down payment
Work on improving your credit profile before applying
Explore different loan structures (depending on your situation)
Some buyers also choose to refinance later once they've built enough equity to remove PMI entirely.
Want to See What PMI Would Look Like for You?
General estimates are helpful, but the real answer comes from your specific loan scenario—your credit, your down payment, and your purchase price.
At nbkc bank, our team can walk you through exactly what PMI would look like in your situation, how long it might last, and how it compares to other options—so you can make a clear, confident decision.