15 Year Mortgage Calculator US

This 15-year mortgage calculator helps you estimate your monthly payments, total interest, and principal repayment for a 15-year home loan in the United States. Whether you're comparing loan options or planning your budget, understanding the terms of a 15-year mortgage can help you make informed financial decisions.

How to Use This Calculator

To calculate your 15-year mortgage payments:

Enter the loan amount you're seeking (e.g., $200,000)
Input your interest rate (e.g., 4.5%)
Select the loan term (15 years)
Click "Calculate" to see your results

The calculator will display your estimated monthly payment, total interest paid over the loan term, and the total amount repaid (principal + interest). You can also view a payment schedule breakdown.

How 15-Year Mortgages Work

A 15-year mortgage is a home loan that's repaid over 15 years instead of the more common 30-year term. The shorter repayment period typically results in lower monthly payments but higher total interest costs compared to a 30-year loan.

Mortgage Payment Formula

The monthly payment (P) for a mortgage can be calculated using the formula:

P = L × [r(1 + r)^n] / [(1 + r)^n - 1]

Where:

L = Loan amount
r = Monthly interest rate (annual rate ÷ 12)
n = Number of payments (loan term in years × 12)

Key features of 15-year mortgages include:

Lower monthly payments due to shorter repayment period
Higher total interest costs compared to 30-year loans
Potential for lower principal balance if you refinance or sell before the end
Faster equity buildup in the home

Important Considerations

Before choosing a 15-year mortgage, consider:

Your financial situation and ability to make larger payments
Potential for rising interest rates
Your plans for homeownership (e.g., if you plan to sell or refinance soon)
Tax benefits of mortgage interest deductions

15-Year vs 30-Year Mortgages

Comparing the two loan terms can help you decide which option is best for your situation.

Feature	15-Year Mortgage	30-Year Mortgage
Loan Term	15 years	30 years
Monthly Payments	Lower	Higher
Total Interest Paid	Higher	Lower
Total Amount Repaid	Similar to 30-year	Similar to 15-year
Equity Buildup	Faster	Slower
Refinancing Options	More limited	More available

For example, a $200,000 loan at 4.5% interest would have:

15-year mortgage: $1,425/month, $113,000 total interest
30-year mortgage: $1,045/month, $105,000 total interest

Worked Examples

Example 1: $200,000 Loan at 4.5%

For a $200,000 loan at 4.5% interest over 15 years:

Monthly payment: $1,425
Total interest paid: $113,000
Total amount repaid: $313,000

Example 2: $300,000 Loan at 5.0%

For a $300,000 loan at 5.0% interest over 15 years:

Monthly payment: $2,138
Total interest paid: $170,000
Total amount repaid: $470,000

Frequently Asked Questions

What is a 15-year mortgage?

A 15-year mortgage is a home loan that's repaid over 15 years instead of the more common 30-year term. It typically results in lower monthly payments but higher total interest costs compared to a 30-year loan.

How do 15-year mortgages compare to 30-year mortgages?

15-year mortgages have lower monthly payments but higher total interest costs. They also offer faster equity buildup and may be more difficult to refinance. 30-year mortgages have higher monthly payments but lower total interest costs and more refinance options.

Can I get a 15-year mortgage with bad credit?

It's more difficult to qualify for a 15-year mortgage with bad credit, but some lenders offer these loans to borrowers with credit scores as low as 620. You may need to pay higher interest rates or make a larger down payment.

Are there any tax benefits to a 15-year mortgage?

Yes, you can deduct mortgage interest on your federal income tax return, which may reduce your taxable income. However, the interest deduction phaseout begins at $750,000 of adjusted gross income for single filers and $150,000 for married couples filing jointly.

Can I refinance a 15-year mortgage?

Refinancing a 15-year mortgage is possible but may be more difficult than refinancing a 30-year mortgage. You'll need to meet the lender's requirements, and the new loan terms may not be as favorable as with a 30-year mortgage.