Your payment depends on the interest rate and loan term you choose

On a $240,000 mortgage, your monthly payment (principal and interest only) ranges from roughly $1,150 to $1,700, depending on whether you lock in a 7% interest rate over 30 years or a 5% rate over 15 years. The longer your loan term, the lower your monthly payment—but you pay more interest overall. The higher your interest rate, the higher your payment every month for the life of the loan.

This calculation does not include property taxes, homeowners insurance, or mortgage insurance (PMI), which most lenders require if you put down less than 20%. Those costs vary by location and your down payment size, but they typically add $300 to $600 per month to your total housing payment.

The easiest way to see your exact payment is to use a mortgage calculator and plug in your interest rate, loan term, and down payment amount. Your lender will give you all three numbers before you lock in a rate.

Key Takeaways

  • A $240,000 mortgage at 6% interest over 30 years costs about $1,440 per month in principal and interest alone.
  • Dropping the interest rate to 5% lowers that payment to roughly $1,290; raising it to 7% raises the payment to about $1,600.
  • Choosing a 15-year term instead of 30 years doubles your monthly payment but cuts your total interest paid nearly in half.
  • Property taxes, homeowners insurance, and mortgage insurance (if applicable) are separate costs that typically add $300 to $600 monthly.
  • Your actual payment depends on the rate your lender offers, which changes based on market conditions and your credit profile.

How interest rate changes affect your payment

Interest rates move constantly. A difference of even 0.5% changes your monthly payment by $60 to $80 on a $240,000 loan. Your credit score, down payment size, loan type (conventional, FHA, VA), and current market conditions all determine what rate a lender will offer you.

When you get a rate quote, ask the lender to lock it in for a specific number of days—usually 30, 45, or 60. During that lock period, your rate will not change even if market rates move. After the lock expires, you either close the loan or the rate expires and you need a new quote.

If you are shopping around, get quotes from at least three lenders. Each one will pull your credit (a hard inquiry), but multiple pulls within 14 days typically count as a single inquiry for credit score purposes, so your score takes only one small hit.

How loan term changes your payment and total cost

A 30-year mortgage spreads payments over 360 months. A 15-year mortgage compresses them into 180 months. On a $240,000 loan at 6% interest, the 30-year payment is about $1,440 per month; the 15-year payment is about $1,900 per month. That extra $460 per month pays off the loan twice as fast and saves you roughly $150,000 in interest over the life of the loan.

Some borrowers choose a 20-year term as a middle ground. The payment falls between the two, and you still save significantly on interest compared to 30 years. Your lender can calculate the exact payment for any term you want to consider.

The tradeoff is cash flow. If you need lower monthly payments to fit your budget, 30 years makes sense. If you can afford higher payments and want to build equity faster and pay less interest, 15 years is worth the stretch.

What gets added to your principal and interest payment

Your lender will quote you a payment for principal and interest. But your actual monthly housing cost is usually higher because of four other expenses that often get rolled into one payment:

  • Property taxes: Paid to your county or municipality. Varies widely by location—from under 0.5% of home value per year in some states to over 2% in others.
  • Homeowners insurance: Required by all lenders. Typically $1,000 to $2,000 per year, depending on home value, location, and coverage level.
  • Mortgage insurance (PMI): Required if your down payment is less than 20%. Usually costs 0.5% to 1.5% of the loan amount per year, paid monthly.
  • HOA fees: If the property is in a planned community. Ranges from $100 to $500+ per month depending on amenities and location.

Your lender will estimate these costs and add them to your principal and interest payment. The total is called your PITI (principal, interest, taxes, insurance) or PITI + PMI if mortgage insurance applies. Ask your lender for a written estimate of all four before you commit.

Down payment size and how it affects your payment

The larger your down payment, the smaller your loan amount and your monthly payment. A 20% down payment on a $240,000 home ($48,000) means you borrow $192,000. A 10% down payment ($24,000) means you borrow $216,000. That $24,000 difference lowers your monthly payment by about $145 at a 6% rate over 30 years.

Down payments smaller than 20% trigger mortgage insurance, which adds cost. But many buyers cannot save 20% upfront. FHA loans allow down payments as low as 3.5%, and some conventional loans go down to 3%. The mortgage insurance cost is usually worth it if it lets you buy sooner rather than wait years to save more.

If you put down less than 20%, ask your lender when you can request to remove PMI. Most loans allow you to drop it once you reach 20% equity in the home—either through payments or home appreciation. Some lenders require you to request removal; others do it automatically.

How to use a mortgage calculator to find your exact payment

A mortgage calculator takes three inputs: loan amount, interest rate, and loan term. Plug in $240,000, your rate, and your term length, and it shows you the monthly payment instantly. Most calculators also let you add property taxes, insurance, and PMI to see your full monthly cost.

Use a calculator before you call a lender so you understand the ballpark. Then get actual quotes from lenders—their calculators use real rates and real insurance estimates for your specific property and location, which online tools cannot do.

If you are comparing offers from multiple lenders, ask each one for a Loan Estimate form. By law, lenders must provide this within three business days of your application. It shows your rate, term, payment, and all closing costs side by side, so you can compare apples to apples.

Frequently Asked Questions

Does a $240,000 mortgage payment include property taxes and insurance?

Not automatically. The lender quotes you principal and interest only. But most lenders require you to pay property taxes and insurance through an escrow account, which means they collect money each month, hold it, and pay those bills on your behalf. Your total payment includes all four: principal, interest, taxes, and insurance.

What if I want to pay off the mortgage faster than 30 years?

You can make extra payments toward principal at any time without penalty (check your loan documents to confirm). Some borrowers make one extra payment per year, or split their monthly payment in half and pay every two weeks. This shortens the loan term and saves interest, but it does not change your required monthly payment—you are paying extra on top of it.

How much of my payment goes to principal versus interest at the start?

In the first month of a 30-year loan at 6%, almost all of your payment goes to interest. On a $240,000 loan, you might pay $1,200 in interest and only $240 toward principal. This ratio flips over time—by year 20, most of your payment goes to principal. This is why paying extra early in the loan saves so much interest.

Can I lock in an interest rate before I find a house?

No. Lenders lock rates only after you have submitted an application and they have verified your income, credit, and employment. You can get a rate quote before applying, but it is not locked. Once you find a property and apply for the loan, you can lock the rate for 30 to 60 days while the lender processes your application and the home is appraised.

What happens if interest rates drop after I lock my rate?

You are stuck with your locked rate unless you pay a fee to float down to a lower rate (if your lender offers that option). Some lenders allow one free rate reduction during the lock period; others charge a fee. Ask about this before you lock. If rates drop significantly after closing, you can refinance later, but refinancing has its own costs and closing timeline.