🏠 Finance
Property Tax Calculator
Use this free property tax calculator to get fast, accurate results.
📝 Your Assumptions
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This property tax calculator helps you estimate your monthly mortgage payment, total interest, and total paid over the life of your loan. Enter your loan amount, interest rate, and loan term to see how much you'll pay each month and in total. Whether you're buying your first home or refinancing, these numbers help you budget accurately and compare loan offers.
How to Use This Calculator
Follow these five steps to get your mortgage payment breakdown.
1
Enter Your Loan Amount
Input the total amount you plan to borrow, such as $400,000 for a typical home purchase. This should be the purchase price minus your down payment. For example, a $450,000 home with a 20% down payment means a $360,000 loan.
2
Input Your Interest Rate
Enter the annual interest rate you expect, like 6.5% for a 30-year fixed mortgage. Your rate depends on your credit score, down payment, and market conditions. Even a 0.5% difference can change your monthly payment by over $100.
3
Choose Your Loan Term
Select the number of years you'll take to repay the loan, typically 15 or 30 years. A shorter term means higher monthly payments but much less total interest. For a $400,000 loan at 6.5%, a 15-year term saves over $200,000 in interest compared to a 30-year term.
4
Review Your Monthly Payment
The calculator shows your principal and interest payment, which is the core of your mortgage. For a $400,000 loan at 6.5% for 30 years, the monthly payment is about $2,528. Remember that property taxes, insurance, and HOA fees are not included.
5
Compare Total Interest and Total Paid
See how much interest you'll pay over the life of the loan and the total amount paid. On a $400,000 loan at 6.5% for 30 years, total interest is roughly $510,000, making the total paid about $910,000. This highlights the true cost of borrowing.
What Your Results Mean
Understand each output to make informed decisions about your mortgage.
Monthly Payment
This is your principal and interest payment due each month. For a $400,000 loan at 6.5% for 30 years, it's $2,528. This does not include property taxes, homeowners insurance, or PMI, which can add hundreds more.
Total Interest
The sum of all interest payments over the loan term. On a $400,000 loan at 6.5% for 30 years, you'll pay about $510,000 in interest—more than the loan itself. A 15-year term at 6.5% cuts interest to roughly $227,000.
Total Paid
The total amount you'll pay over the life of the loan, including principal and interest. For the $400,000 example, total paid is $910,000. This figure helps you see the long-term cost of your mortgage.
Loan Term Impact
Choosing a 15-year term instead of 30 years increases your monthly payment but drastically reduces total interest. On a $400,000 loan at 6.5%, the 15-year monthly payment is $3,484, but you save $283,000 in interest.
Interest Rate Sensitivity
Small rate changes have a big effect. At 7% instead of 6.5% on a $400,000 30-year loan, your monthly payment rises by $128 to $2,661, and total interest increases by $46,000.
Amortization Schedule
Early payments are mostly interest; later payments are mostly principal. In the first year of a $400,000 loan at 6.5%, about 80% of your payment goes to interest. By year 25, that flips to mostly principal.
Key Terms
Principal
The original amount of money you borrow, not including interest. For a $400,000 mortgage, the principal is $400,000.
Interest Rate
The annual percentage charged on your loan principal. A 6.5% rate means you pay 6.5% of the outstanding balance each year.
Loan Term
The length of time you have to repay the loan, usually 15 or 30 years. A longer term means lower monthly payments but more total interest.
Amortization
The process of paying off a loan with scheduled payments that cover both principal and interest. Early payments are interest-heavy, while later payments reduce principal faster.
Total Interest
The cumulative amount of interest you pay over the entire loan term. On a $400,000 loan at 6.5% for 30 years, total interest is about $510,000.
❓ Frequently Asked Questions
Your monthly mortgage payment is calculated using the amortization formula: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1 ], where M is the monthly payment, P is the principal loan amount, i is the monthly interest rate (annual rate divided by 12), and n is the number of monthly payments (loan term in years multiplied by 12). For example, a $400,000 loan at 6.5% annual interest for 30 years: i = 0.065/12 = 0.005417, n = 360. Plugging in, M = 400,000 [0.005417(1.005417)^360] / [(1.005417)^360 – 1] ≈ $2,528. This payment covers principal and interest only; property taxes, homeowners insurance, and PMI are separate. If you want to see how adding taxes and insurance affects your payment, use our mortgage calculator. Also, consider that even a small change in interest rate—say to 7%—raises the payment to $2,661, so shopping for the best rate is crucial.
A 15-year mortgage has higher monthly payments but significantly lower total interest. For a $400,000 loan at 6.5%, the 15-year monthly payment is $3,484, and total interest is about $227,000. The 30-year monthly payment is $2,528, but total interest balloons to $510,000—$283,000 more. The 15-year term saves you money overall but requires a higher monthly cash flow. If you can afford the higher payment, a 15-year mortgage builds equity faster and reduces your debt burden sooner. However, if you prefer lower payments to invest elsewhere or need flexibility, a 30-year mortgage might be better. Use our loan calculator to compare different terms and rates side by side.
A 0.5% rate change can significantly impact your monthly payment and total interest. On a $400,000 30-year mortgage, at 6.5% your monthly payment is $2,528 and total interest is $510,000. At 7.0%, the monthly payment rises to $2,661—an extra $133 per month—and total interest jumps to $558,000, costing $48,000 more over the life of the loan. Over 30 years, that $133 monthly difference adds up to $47,880. Even a 0.25% change matters: at 6.75%, the payment is $2,594, $66 more per month. This is why even a small rate reduction through better credit or shopping around is valuable. Our mortgage calculator can help you see these differences instantly.
Amortization is the schedule of loan payments that gradually pays off both principal and interest. In the early years, most of your payment goes toward interest; later, more goes to principal. For a $400,000 loan at 6.5% for 30 years, in the first month, $2,167 of your $2,528 payment is interest, and only $361 goes to principal. By year 15, the interest portion drops to about $1,500, and principal rises to $1,028. By year 25, interest is $500, and principal is $2,028. This matters because it shows how slowly you build equity initially. Making extra payments early can dramatically reduce total interest. For example, adding $200 to your monthly payment could save over $100,000 in interest and shorten your term. Use our loan calculator to see how extra payments affect your amortization.
Choosing a shorter loan term can save a substantial amount on interest, but it increases your monthly payment. For a $400,000 loan at 6.5%, a 15-year term has a monthly payment of $3,484 and total interest of $227,000. A 30-year term has a monthly payment of $2,528 and total interest of $510,000. The 15-year term saves $283,000 in interest, but costs $956 more per month. Whether that’s worth it depends on your budget and financial goals. If you can comfortably afford the higher payment, a 15-year term is a powerful way to build equity and become debt-free faster. If not, a 30-year term with extra payments when possible offers flexibility. Our mortgage calculator can help you compare scenarios.
No, this calculator only computes principal and interest. Property taxes, homeowners insurance, and private mortgage insurance (PMI) are not included. These costs vary by location and lender. For example, on a $400,000 home, annual property taxes might be $4,800 (1.2% of value), adding $400 to your monthly payment. Homeowners insurance could be $1,200 per year, adding $100 per month. If your down payment is less than 20%, PMI might add $200 per month. So your total monthly housing payment could be $2,528 + $400 + $100 + $200 = $3,228. To estimate your full monthly payment including these costs, use our mortgage calculator, which allows you to input taxes and insurance. Always budget for these additional expenses when buying a home.
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