15 Year Refinance Payment Calculator

Refinancing your mortgage to a 15-year term can significantly reduce your monthly payments and total interest paid over the life of the loan. This calculator helps you estimate your new monthly payment and compare it to your current mortgage.

How to Use This Calculator

To calculate your 15-year refinanced mortgage payment:

Enter your current loan balance (the amount you owe on your existing mortgage).
Enter the current interest rate on your existing mortgage.
Enter the new interest rate you're qualified for with your refinance.
Click "Calculate" to see your estimated monthly payment and total interest paid over 15 years.

The calculator uses the standard mortgage payment formula to compute your new payment. You can also compare your current payment to the refinance payment to see the difference.

How Refinancing Works

Refinancing involves replacing your current mortgage with a new one, typically with better terms. A 15-year refinance can be particularly attractive because:

Lower monthly payments can free up cash flow
You pay off the loan faster, reducing total interest costs
You may qualify for a lower interest rate if your credit has improved

Mortgage Payment Formula

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

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

Where:

L = Loan amount (current mortgage balance)
r = Monthly interest rate (annual rate divided by 12)
n = Number of payments (15 years × 12 months = 180 payments)

When you refinance, you're essentially applying this formula with your new interest rate to get a lower monthly payment.

Example Calculation

Let's say you have a $200,000 mortgage with a 5% interest rate, and you're refinancing to a 15-year term with a 3.5% interest rate.

Using the calculator:

Enter $200,000 as the current loan balance
Enter 5% as the current interest rate
Enter 3.5% as the new interest rate
Click "Calculate"

The calculator will show you that your current monthly payment is approximately $1,102.46, while your new 15-year refinance payment would be about $1,193.55. The difference is $91.09 per month, which adds up to $20,500 over 15 years.

Key Considerations

While refinancing can save you money, there are costs to consider:

Closing costs (typically 2-5% of the loan amount)
Appraisal fees
Title insurance
Prepaid interest (if you refinance before paying off your current loan)

Make sure to factor these costs into your decision.

Frequently Asked Questions

What is a 15-year refinance?: A 15-year refinance is a mortgage that replaces your current loan with a new one that will be paid off in 15 years instead of the original term (usually 30 years).
How much can I save with a 15-year refinance?: You can typically save hundreds to thousands of dollars per year by refinancing to a 15-year term, depending on your loan amount and interest rate.
What are the risks of refinancing?: The main risks include closing costs, the possibility of not qualifying for the lower rate, and the potential for interest rates to rise before the refinance term ends.
Can I refinance if I have bad credit?: It's more difficult but possible. You may need to look for specialized lenders or accept higher interest rates.
How long does refinancing take?: The process typically takes 30-45 days from application to closing, though some steps can be completed more quickly.