What goes into your monthly home payment

Your monthly home payment has four parts, often called PITI: principal, interest, taxes, and insurance. Principal is the amount you borrowed that you pay back each month. Interest is what the lender charges you for lending that money. Property taxes and homeowners insurance are added on top, usually collected by your lender and held in an escrow account until they're due.

The payment you see on your mortgage statement is almost always the sum of all four. If you have a mortgage of $300,000 at 6.5% interest over 30 years, your principal and interest alone will be roughly $1,896 per month—but your actual payment will be higher once taxes and insurance are included. The exact total depends on where you live, what your home is worth, and what insurance you carry.

Key Takeaways

  • Principal and interest are calculated using a fixed formula based on your loan amount, interest rate, and loan term; a mortgage calculator or your lender's documents will show this figure.
  • Property taxes vary by location and are assessed on your home's value, so a $400,000 home in one county may have a very different tax bill than the same home elsewhere.
  • Homeowners insurance is required by lenders and varies by insurer, location, and home age; you can get quotes from multiple insurers to compare costs.
  • Your lender collects principal, interest, taxes, and insurance each month and holds taxes and insurance in escrow until they're due to the county and insurance company.
  • If you put down less than 20 percent, mortgage insurance (PMI) is added to your payment and stays until you reach 20 percent equity in the home.

Calculating principal and interest

Principal and interest follow a mathematical formula that stays the same for a fixed-rate mortgage. The lender divides your loan amount by the number of months in your term, then adds interest based on your rate and how much you still owe. Early in the loan, most of your payment goes to interest; later, most goes to principal.

You do not need to do this math yourself. Your lender provides an amortization schedule—a table showing every payment, how much goes to principal, how much to interest, and your remaining balance. You can also use an online mortgage calculator: enter your loan amount, interest rate, and loan term (usually 15 or 30 years), and it will show your monthly principal and interest payment. The number you get is reliable because the formula is standardized across all lenders.

If you have a variable-rate mortgage, the interest portion changes when your rate adjusts, so your payment will change too. Your lender will notify you before any adjustment and provide a new payment amount.

Finding your property tax amount

Property taxes are set by your county or municipality and are based on your home's assessed value, not its purchase price. A home worth $400,000 in one county might be taxed at 0.8 percent of value, while the same home in another county might be taxed at 1.2 percent. That difference means hundreds of dollars per year.

To find your property tax, contact your county assessor's office or search their online database—most counties publish assessed values and tax rates publicly. Multiply your home's assessed value by your local tax rate. If your assessed value is $350,000 and your rate is 1 percent, your annual tax is $3,500, or about $292 per month. Your lender will collect this amount each month in escrow and pay it when it's due.

Assessed values are usually updated every few years, so your tax bill can change. If you think your assessment is too high, you can file an appeal with your assessor's office; the process and important date vary by location.

Getting homeowners insurance quotes

Homeowners insurance is required by your lender and covers damage to your home from fire, theft, weather, and other covered events. It does not cover floods or earthquakes—those need separate policies. The cost depends on your home's age, location, construction type, and the coverage limits you choose.

Contact at least three insurers and ask for a quote on the same coverage level. Most insurers offer quotes online or by phone in minutes. A newer home in a low-crime area will cost less to insure than an older home in a high-crime area. Your lender will tell you the minimum coverage required; you can choose higher limits if you want more protection. Once you pick an insurer, your lender collects the premium each month in escrow and pays the annual bill.

Review your insurance every few years. Rates change, and you may find a better price elsewhere. If you make home improvements, tell your insurer—some upgrades lower your premium.

Understanding mortgage insurance (PMI)

If you put down less than 20 percent of the home's purchase price, your lender requires private mortgage insurance, or PMI. This protects the lender if you stop paying; it does not protect you. PMI typically costs 0.5 to 1.5 percent of your loan amount per year, added to your monthly payment.

PMI stays on your loan until you reach 20 percent equity—meaning you've paid down the loan enough that you owe 80 percent or less of the home's original value. Once you hit that point, you can request that your lender remove PMI. Some lenders remove it automatically; others require you to ask. Keep track of your equity and request removal when you may have access to.

Putting the pieces together

To calculate your full monthly payment, add principal and interest, property tax (divided by 12), homeowners insurance (divided by 12), and PMI if applicable. If your principal and interest is $1,896, your monthly property tax is $292, your monthly insurance is $120, and you have no PMI, your total payment is $2,308.

Your lender provides a document called a Loan Estimate before you close on the home. This shows your principal and interest, estimated taxes and insurance, PMI if applicable, and closing costs. The numbers may shift slightly at closing, but the Loan Estimate gives you an accurate picture of what to expect. After closing, your monthly statement will show exactly what you paid that month and where it went.

If you refinance your mortgage later, you'll get a new Loan Estimate with updated numbers based on current interest rates, your new loan amount, and any changes to taxes or insurance since you bought the home.

Frequently Asked Questions

What's the difference between my interest rate and my APR?

Your interest rate is what you pay on the loan itself. Your APR (annual percentage rate) includes the interest rate plus other costs like origination fees and points, spread over the life of the loan. Lenders must disclose both on your Loan Estimate. The APR is usually slightly higher than the rate and gives you a more complete picture of what the loan costs.

Can my property tax or insurance payment change after I close?

Yes. Property taxes are reassessed periodically, and insurance rates change based on claims history, market conditions, and other factors. Your lender adjusts your escrow payment if taxes or insurance go up. You'll see the new amount on your mortgage statement. If your escrow account runs short, your lender may ask for a larger payment; if it has a surplus, you may get a refund.

What happens if I pay extra toward principal?

Extra payments go directly to principal and reduce the amount of interest you pay over the life of the loan. They also shorten your loan term—you'll pay off the mortgage faster. Make sure your lender allows extra payments without penalty; most do, but some older mortgages have prepayment penalties. Check your loan documents or call your lender to confirm.

How do I know if my escrow account is accurate?

Your lender sends an escrow statement once a year showing what they collected, what they paid out for taxes and insurance, and your account balance. Review it to make sure the amounts match your actual tax bill and insurance premium. If there's a large surplus or shortage, your lender will adjust your monthly payment. Contact your lender if the numbers don't match what you expect.

Does my down payment affect my monthly payment?

Yes. A larger down payment means you borrow less, so your principal and interest payment is lower. It also means you reach 20 percent equity faster, so you can drop PMI sooner. A 20 percent down payment eliminates PMI entirely from day one. Even a few percentage points more down saves money over the life of the loan.