PITI explained
PITI: the four parts of a mortgage payment.
People picture a mortgage payment as one number, but it is really four things bundled into one bill: principal, interest, taxes, and insurance. Here is what each part is, why the lender collects your taxes and insurance for you, and why a fixed-rate payment can still change from year to year.
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The short answer
What the four letters in PITI stand for.
PITI is the industry's shorthand for the four parts of a mortgage payment: principal, interest, taxes, and insurance. When people picture a house payment they usually think of one number, but that single number is really four separate things bundled into one monthly bill. Two of them, the principal and the interest, are the loan itself, what you pay the lender for borrowing the money. The other two, the property taxes and the insurance, are not the lender's money at all. The lender simply collects them alongside the loan and pays those bills for you when they come due.
That bundling is the whole idea behind PITI, and it is worth understanding before you shop, because it explains two things that surprise a lot of buyers. The first is why the payment on a fixed-rate loan can still change from one year to the next, even though the interest rate never moved. The second is why the number a lender qualifies you on is larger than just the loan. I will take the four parts one at a time, then explain the escrow account that ties the taxes and insurance together, and point your real numbers to the right place, because none of this is a figure you can read off a page. It is a calculation on your specific home and your specific loan.
Principal and interest
The P and the I, the loan itself.
Principal is the part of each payment that reduces what you actually borrowed. Every month a slice of your payment goes straight against the loan balance, and over the life of the loan that balance works its way down toward zero. Interest is what the lender charges you for the use of the money, calculated on the balance you still owe. Early on, more of your payment is interest and less is principal, because the balance is at its largest; as the balance shrinks, the mix gradually tips the other way. That shift is built into the loan and happens quietly in the background, without changing what you pay.
On a fixed-rate loan, the principal and interest are the anchor of PITI. Added together, they are the one part of your payment that does not change for the entire life of the loan. The rate is locked, so the combined principal-and-interest amount is set the day you close and stays put, month after month, year after year. That predictability is the whole appeal of a fixed-rate loan, and it is why people call the principal and interest the fixed part of the payment. Hold on to that, because it is exactly what makes the next two parts, the taxes and the insurance, feel like the surprising ones. Whenever you hear that a payment went up on a loan whose rate never moved, the principal and interest were not the reason.
Taxes and insurance
The T and the I, collected and paid for you.
The T is property taxes. Your county assesses a tax on the home every year, and rather than leave you to save up for one large annual bill, most lenders collect a share of it with every monthly payment and hold that money aside. When the county's tax comes due, the lender pays it for you out of what it has been collecting. The account that holds this money goes by two names, an escrow account or an impound account, and they mean the same thing; how escrow works covers it in full. It exists so the two big yearly bills, taxes and insurance, are spread across twelve manageable payments instead of landing all at once.
The second I is insurance, and it follows the same path. Your homeowners insurance, the policy that protects the house itself, is usually collected monthly into that same account and paid to your insurer when the policy renews. On some loans there is a second kind of insurance in the picture: mortgage insurance, which certain loans require and which protects the lender rather than the home. When a loan carries it, it rides inside the payment too. The pattern is what matters for understanding PITI: the lender gathers your taxes and insurance a little at a time, holds the money, and pays the bills for you when they are due. You are not writing separate checks to the county and the insurer; it is all folded into the one payment.
Why the payment moves
Why a fixed-rate payment still changes year to year.
Here is where the two halves of PITI part ways. The principal and interest are locked on a fixed-rate loan, but the taxes and the insurance are not. Your county can reassess the home's value or adjust its tax, and your insurer can change your premium at renewal. When either one moves, the amount the lender needs to collect each month has to move with it. Once a year the lender reviews the escrow account, compares what it collected against what the bills actually came to, and resets your monthly collection for the year ahead. That yearly review is why a payment can rise or fall even when the interest rate has not budged.
If the bills came in higher than expected, the account can run short, and the lender spreads that shortfall into the next year's payments while collecting a bit more going forward; if the bills came in lower, you can end up with a small surplus. Either way, the principal and interest underneath it all stayed exactly the same. That is the single most useful thing to hold on to about PITI: the part tied to your loan is steady, and the part tied to your taxes and insurance is the part that drifts. Because all of it turns on your specific home, your county, and your policy, there is no honest number I can print here. The right way to see a real, all-in payment is to run it. Start with the affordability calculator for an estimate, then talk to a lender who can build the actual figure on your file.
Read your real numbers with me
One person to turn PITI into your actual payment.
A page can teach you the four parts. It cannot tell you what your payment will be, because that depends on your home, your county, your insurer, and your loan. That is the conversation to have with a lender.
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Twenty years living in Southern Utah. I have lived here that long, and I have helped buyers across Iron and Washington counties understand exactly what their monthly payment includes before they ever write an offer.
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Lender and agent, one picture. I am licensed in both, so I can estimate your principal and interest, walk through what escrow will collect for taxes and insurance, and read your whole file, taking one role on your purchase and never both at once.
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Plain English, no runaround. I will show you which part of your payment is fixed, which part your county and your insurer can move, and why the two are not the same. No jargon, and no pressure.
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Statewide, told straight. In Southern Utah I am your lender or your agent, one or the other. Anywhere else in Utah, I connect you with a partner agent I trust and stay involved.
Questions, answered
What buyers ask about PITI.
PITI stands for principal, interest, taxes, and insurance, the four parts of a monthly mortgage payment. Principal pays down the balance you borrowed and interest is the cost of borrowing; together they are the loan itself. Taxes are your property taxes and insurance is your homeowners insurance, both usually collected by the lender and paid on your behalf. Bundled together, they are the full payment rather than just the loan.
Because only part of the payment is fixed. On a fixed-rate loan the principal and interest never change, but the property taxes and the insurance can. When your county adjusts your taxes or your insurer changes your premium, the lender has to collect a different amount each month to cover them. Once a year the lender reviews the escrow account and resets your payment for the year ahead, which is why a fixed-rate payment can still move.
It is an account your lender uses to collect your property taxes and homeowners insurance a little at a time, then pay those bills for you when they come due. An escrow account and an impound account are two names for the same thing. It spreads the two large annual bills across twelve monthly payments instead of leaving you to cover them all at once. Whether your loan has one depends on the loan.
Often, but not always. Many loans require the lender to collect property taxes and homeowners insurance inside the monthly payment through an escrow account. Some loans let you pay those bills yourself instead. When they are collected inside the payment, your monthly number is larger than just the loan, but you are not writing separate checks to the county and the insurer. A lender can tell you how your specific loan is set up.
Principal is the part of each payment that reduces the amount you borrowed, so your loan balance shrinks over time. Interest is what the lender charges you for the use of the money, calculated on the balance you still owe. Early in the loan more of the payment goes to interest because the balance is largest; as the balance falls, more goes to principal. On a fixed-rate loan the two added together stay the same every month.
You have to run it on your own numbers, because the taxes and insurance depend on the specific home, the county, and your policy, and no general figure would be honest. Start with an affordability calculator for an estimate, then talk to a lender who can build the real payment on your file, including what escrow will collect. That is the only way to see a true all-in number rather than a guess.
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Ready to see your real monthly payment?
I am Scott Buehler, a licensed mortgage lender and real estate agent in Cedar City, and I have helped people across Southern Utah understand exactly what their monthly payment includes before they commit to a home. Tell me about the home and the loan you have in mind, and I will walk you through the principal, the interest, and what escrow will collect for your taxes and insurance. No pressure, and no obligation.
Not in Southern Utah? I will connect you with a partner agent I trust in your area, and stay involved.