Break down your monthly payment into Principal, Interest, Tax, Insurance (PITI). Know exactly what you pay.
What Is Included in a Monthly Mortgage Payment?
Your monthly mortgage payment is more than just paying back the money you borrowed. Most mortgage payments include four components, often abbreviated as PITI: Principal, Interest, Taxes, and Insurance. Property taxes and homeowners insurance are typically collected by your lender each month and held in an escrow account, then paid on your behalf when they come due. This calculator breaks down each component so you can see exactly where your money goes.
Monthly Payment Calculator (PITI Breakdown)
Your Monthly Payment Breakdown
Component
Monthly Amount
Principal & Interest (P&I)
Property Tax
Homeowners Insurance
PMI
Total Monthly Payment
Why Understanding Your Full Monthly Payment Matters
Many homebuyers focus only on the principal and interest payment, only to be surprised when their actual monthly payment is $500 or $1,000 higher due to taxes, insurance, and mortgage insurance. Lenders evaluate your ability to repay based on your total monthly housing cost, not just P&I. Use this calculator before you make an offer on a home so you know whether the full monthly payment fits your budget.
Property Tax Varies Dramatically by State
Property tax rates range from less than 0.3% of assessed home value in states like Hawaii to over 2.2% in New Jersey. The national average is approximately 1.1% to 1.3%. When comparing homes in different states or counties, always factor in the local property tax rate — it can add $200 to $800+ to your monthly payment depending on the home price and location.
How the Monthly Payment Calculator Works
Your full housing payment is usually called PITI: Principal, Interest, Taxes, and Insurance. This calculator combines all four so you see the real monthly cost, not just principal and interest. Lenders qualify you on this all-in number, which is why ignoring taxes and insurance leads so many buyers to overestimate what they can afford.
The Math Behind Principal & Interest
For a fixed-rate loan, the monthly principal-and-interest payment uses the standard amortization formula:
M = P × [ r(1+r)n ] / [ (1+r)n − 1 ]
Where M = monthly P&I, P = loan principal, r = monthly interest rate (annual rate ÷ 12), and n = total number of payments (years × 12).
Example: a $320,000 loan at 6.7% for 30 years gives r = 0.005583 and n = 360, producing a P&I payment near $2,066. Add taxes and insurance and the true payment is higher.
Taxes and Insurance in the Payment
Property taxes and homeowner's insurance are typically collected by your lender into an escrow account, 1/12 of the annual cost added to each payment. If your state's tax rate is 1.0% on a $400,000 home, that is about $333/month in taxes alone. Our state guides show each state's real rate so your estimate is accurate.
Who Should Use This Calculator
First-time buyers setting a realistic budget before house hunting.
Current owners comparing their payment to a potential new home.
Anyone deciding whether a lower rate is worth refinancing.
Common Mistakes
Forgetting PMI
If your down payment is under 20%, add private mortgage insurance. Use our PMI calculator to include it.
Ignoring HOA fees
Condo and community fees can add hundreds per month. Add them manually to your total.
Using list price as taxable value
Assessed value may differ from purchase price; request the seller's current tax bill for a true figure.
Frequently Asked Questions
Why is my full payment higher than the P&I I see quoted?
Quotes often show principal and interest only. Taxes, insurance, and possibly PMI or HOA fees are added on top to form your complete PITI payment.
Should I escrow taxes and insurance?
Escrow is convenient and often required with low down payments. Some lenders give a small rate credit if you waive escrow, but you must budget the annual bills yourself.
How does a larger down payment change the payment?
A bigger down payment lowers the loan amount, reducing P&I and possibly eliminating PMI. See our down payment calculator.
Your full housing payment is usually called PITI: Principal, Interest, Taxes, and Insurance. This calculator combines all four so you see the real monthly cost, not just principal and interest. Lenders qualify you on this all-in number, which is why ignoring taxes and insurance leads so many buyers to overestimate what they can afford.
The Math Behind Principal & Interest
For a fixed-rate loan, the monthly principal-and-interest payment uses the standard amortization formula:
M = P × [ r(1+r)n ] / [ (1+r)n − 1 ]
Where M = monthly P&I, P = loan principal, r = monthly interest rate (annual rate ÷ 12), and n = total number of payments (years × 12).
Worked example: a $320,000 loan at 6.7% for 30 years gives r = 0.005583 and n = 360, producing a P&I payment near $2,066. Add taxes and insurance and the true payment is higher. Try the numbers for your own loan above.
Taxes and Insurance in the Payment
Property taxes and homeowner's insurance are typically collected by your lender into an escrow account, 1/12 of the annual cost added to each payment. If your state's tax rate is 1.0% on a $400,000 home, that is about $333/month in taxes alone. Our state guides show each state's real rate so your estimate is accurate rather than a guess.
A Full Worked Example
Component
Monthly
Note
Principal & Interest
~$2,066
$320k at 6.7%, 30-yr
Property Tax
~$333
1.0% of $400k
Insurance
~$100
Typical homeowner policy
PMI (if <20%)
~$150
Removable at 20% equity
Total PITI
~$2,649
The real monthly cost
Who Should Use This Calculator
First-time buyers setting a realistic budget before house hunting.
Current owners comparing their payment to a potential new home.
Anyone deciding whether a lower rate is worth refinancing.
Common Mistakes
Forgetting PMI
If your down payment is under 20%, add private mortgage insurance. Use our PMI calculator to include it.
Ignoring HOA fees
Condo and community fees can add hundreds per month. Add them manually to your total.
Using list price as taxable value
Assessed value may differ from purchase price; request the seller's current tax bill for a true figure.
Factors That Change Your Payment
Your rate, your down payment, your state's tax rate, and your insurance all move the number. A half-point rate change shifts P&I by roughly $60 per $100,000 borrowed. A larger down payment lowers both the loan and the PMI. Run several scenarios to see your range before you shop.
Escrow: The lender-held account that pays your taxes and insurance.
LTV: Loan-to-value, the loan size as a percentage of home price.
Frequently Asked Questions
Why is my full payment higher than the P&I I see quoted?
Quotes often show principal and interest only. Taxes, insurance, and possibly PMI or HOA fees are added on top to form your complete PITI payment.
Should I escrow taxes and insurance?
Escrow is convenient and often required with low down payments. Some lenders give a small rate credit if you waive escrow, but you must budget the annual bills yourself.
How does a larger down payment change the payment?
A bigger down payment lowers the loan amount, reducing P&I and possibly eliminating PMI. See our down payment calculator.
What if my taxes rise after I buy?
Your escrow payment adjusts upward at the annual review. Budget a buffer so the increase doesn't strain cash flow.
If rates fall after you buy, you can refinance to a lower payment; if they rise, your fixed payment is protected. The calculator's value is showing the all-in number at today's rate so you can decide with confidence rather than guesswork. Many buyers re-run it every few months as rates shift, treating it as a living budget tool rather than a one-time check.
Shopping Your Insurance
Homeowner's insurance is not fixed—quotes vary widely between carriers for the same coverage. Getting three quotes at purchase and again at renewal can save hundreds a year, and that saving flows straight into your monthly payment if you escrow. Ask about bundling with auto insurance and raising your deductible to lower the premium, as long as you can cover the deductible in an emergency.
Property Tax Appeals
If your assessed value looks high versus recent comparable sales, you can often appeal and lower your bill. Since taxes are a permanent part of your payment, a successful appeal saves money every year you own the home. Our property tax guide walks the appeal step by step.
Fixed vs Interest-Only
This calculator assumes a fully amortizing fixed loan. Interest-only and negative-amortization loans exist but are risky—your balance never drops (or grows). Stick with standard amortizing loans so every payment builds equity, and use the result here as your true cost baseline.
Planning for the Unexpected
Your payment is only part of ownership. Budget separately for maintenance, repairs, and the day a water heater fails. A common rule is to set aside 1% of the home's value per year. Build that into your monthly plan so the mortgage payment doesn't consume your entire housing budget.
More Questions
Can I lower my payment without refinancing?
Yes—appealing taxes, shopping insurance, or dropping PMI at 20% equity all reduce the payment without a new loan.
Should I pay points to lower the rate?
Only if you'll stay past the break-even (3–6 years). Model it with the payment calculator before spending cash.
How accurate is this estimate?
It's as accurate as your inputs. Use real local tax rates from your state guide and a current insurance quote for the closest figure.
Making the Payment Real
A calculated payment is only useful if it fits the rest of your life after taxes, insurance, savings, and the occasional vacation. Many buyers qualify for a payment that leaves nothing else, then feel trapped. Use the result here as the ceiling, then set your own floor by subtracting what you need for peace of mind. The home you can technically afford and the home you can comfortably afford are often different numbers, and the second is the one to buy.