Private mortgage insurance (PMI) is required on most conventional loans when the down payment is below 20%, and it catches many first-time buyers off guard as an unexpected monthly cost layered on top of principal and interest. This guide breaks down exactly what drives PMI cost and what you should expect to pay.
Typical range: PMI generally costs 0.3% to 1.5% of the loan amount annually, split into monthly payments. On a $350,000 loan, that translates to roughly $88 to $438 per month, depending primarily on your down payment size and credit score.
The two factors that determine your PMI rate
PMI pricing is driven primarily by loan-to-value ratio (how much you are borrowing relative to home value) and credit score. Lower down payments mean higher risk to the insurer, translating to a higher rate; lower credit scores carry the same effect. A borrower with excellent credit putting down 15% might pay roughly 0.32% annually, while a borrower with fair credit putting down only 5% on an identical loan amount might pay 1.06% or more — more than triple the rate for the combination of lower down payment and weaker credit.
How PMI is actually billed
Most conventional loans use monthly PMI, added directly to your regular mortgage payment as a separate line item, calculated on the original loan balance and typically recalculated periodically as the balance declines. Some lenders offer single-premium PMI, paid entirely upfront at closing, or lender-paid PMI, where the cost is built into a slightly higher interest rate rather than a separate line item — each structure has different tradeoffs worth understanding before choosing.
Single-premium and lender-paid PMI alternatives
Single-premium PMI, paid as a lump sum at closing, can be advantageous for borrowers with sufficient cash who want a lower ongoing monthly payment and do not mind the larger upfront cost, though this amount is generally non-refundable if you refinance or sell shortly after purchase. Lender-paid PMI folds the cost into a permanently higher interest rate rather than a separate cancelable line item — meaning unlike standard borrower-paid PMI, this cost does not go away even once you reach 20% equity, since it is embedded in the rate itself for the life of the loan unless you refinance.
PMI vs FHA mortgage insurance: a real cost comparison
Conventional PMI and FHA MIP serve a similar insurance function but differ meaningfully in structure and long-term cost. PMI, as described above, can be cancelled once you reach 80% LTV and must be automatically removed at 78% LTV by federal law. FHA MIP, in many cases, persists for the entire life of the loan regardless of how much equity you build, unless you refinance out of FHA financing entirely. For a borrower planning a long hold with a low down payment, this structural difference often means conventional PMI, despite sometimes carrying a higher initial rate, produces lower total insurance cost over time than FHA MIP.
See your estimated PMI cost and removal timeline with the PMI Calculator.
Ways to reduce or avoid PMI entirely
The most direct way to avoid PMI is reaching a 20% down payment, eliminating the requirement from the outset. For buyers unable to reach 20%, a piggyback loan structure (an 80-10-10 arrangement, combining an 80% first mortgage, a 10% second loan, and 10% down) can avoid PMI by keeping the primary mortgage at or below 80% LTV, though this adds complexity and a second loan payment. Lender credits in exchange for a slightly higher rate can also offset PMI cost for some borrowers, effectively trading a rate increase for insurance elimination — worth comparing directly against standard PMI over your expected holding period.
PMI cost over the full time you expect to carry it
Looking at PMI as a single monthly figure understates its real impact, since most borrowers carry it for several years before reaching the removal threshold. A borrower paying $250 a month in PMI who takes nine years to reach 80% loan-to-value under the standard schedule will have paid roughly $27,000 in PMI over that period, a meaningful sum that rarely factors into the initial decision of how much to put down. Viewing PMI as this multi-year total, rather than just a monthly line item, often changes how buyers weigh the tradeoff between a smaller down payment now and the cumulative insurance cost over the years it takes to remove it.
This total-cost framing is also useful when comparing a smaller down payment against delaying the purchase to save a larger one. If waiting an extra year or two would let you reach 20% down and avoid PMI entirely, compare the total PMI you would otherwise pay over several years against the cost of waiting, including any home price appreciation or rent paid during that delay, to make an informed rather than purely instinctive decision.
How lenders determine your exact PMI quote
Beyond the general rate table based on credit score and loan-to-value, individual PMI quotes can vary between private mortgage insurers that a lender works with, since each insurer maintains its own underwriting guidelines and occasionally offers more favorable pricing for specific borrower profiles, such as first-time buyers or borrowers completing an approved homebuyer education course. Ask your loan officer whether they obtained quotes from more than one mortgage insurer, since a difference of even a tenth of a percentage point in the PMI rate compounds into a real dollar difference over the years you expect to carry it.
PMI versus other mortgage insurance costs you might encounter
Private mortgage insurance is sometimes confused with homeowners insurance, an entirely separate and mandatory cost that protects against property damage and liability, which every mortgaged homeowner carries regardless of down payment size. PMI protects the lender specifically against default risk tied to a smaller down payment, and only applies when your equity position is below the 20% threshold. Confirm with your lender or your Loan Estimate exactly which insurance line items apply to your specific loan, since a buyer new to the process can sometimes conflate the two and misunderstand which cost will eventually go away as equity builds versus which remains for as long as the home is owned.
How to negotiate or shop PMI as part of your loan
While PMI pricing largely follows standardized tables based on credit score and loan-to-value, there is still room to influence your total cost. Asking your lender whether they work with more than one private mortgage insurer, as mentioned above, is one lever. A second is considering single-premium PMI paid upfront if you have the cash available and plan to stay in the home long enough to benefit from a lower ongoing payment, since the math can favor this structure for a long-term hold despite the larger initial outlay. A third is exploring whether a slightly larger down payment, even just enough to move from one LTV band to the next lower one, produces a disproportionate PMI rate improvement, since the bands in the standard rate table are not evenly spaced in their cost impact.
Running the numbers on each of these options before closing, rather than accepting the default monthly PMI structure without comparison, can meaningfully change your total cost of homeownership over the years you expect to carry the insurance.
A realistic household budgeting example
Consider a household earning $95,000 annually, buying a $380,000 home with 8% down, producing a loan of roughly $349,600. At a 700-759 credit tier and this loan-to-value band, PMI runs close to 0.60% to 0.65% annually, translating to roughly $175 to $190 a month. Over the eight to nine years it typically takes to reach 80% LTV on the standard schedule, this household can expect to pay somewhere between $17,000 and $20,000 in cumulative PMI, a figure worth weighing against the alternative of saving longer for a larger down payment before purchasing, or against directing extra payments specifically toward principal to shorten the PMI period once the loan is in place.
This example illustrates why PMI cost deserves the same scrutiny as the interest rate itself when comparing loan offers or deciding how much to put down, since it is a real, substantial cost that compounds over several years for most borrowers who use a lower down payment to enter homeownership sooner.