Calculate 15 Year Mortgage Refinance

Refinancing your mortgage to a 15-year term can significantly reduce your monthly payments and pay off your loan faster. Use this calculator to compare your current mortgage against a potential 15-year refinance option.

How to Use This Calculator

Enter your current mortgage details and the proposed 15-year refinance terms to calculate the potential savings. The calculator will show you:

Your current monthly payment
The new monthly payment with the 15-year refinance
The total interest paid over the life of the loan
The total amount paid over the life of the loan
A comparison chart showing the payment schedule

Use the results to decide if a 15-year refinance is right for your financial situation.

Formula Used

Monthly Payment Calculation

The monthly payment is calculated using the standard mortgage formula:

M = P [ i(1 + i)^n ] / [ (1 + i)^n - 1 ]

Where:

M = Monthly payment
P = Principal loan amount
i = Monthly interest rate (annual rate divided by 12)
n = Number of payments (loan term in years × 12)

Total Interest Paid

Total interest paid = (Total amount paid) - (Principal loan amount)

Worked Example

Let's say you have a $200,000 mortgage with a 30-year term at 4% annual interest. You're considering a 15-year refinance at 3.5% annual interest.

Using the calculator:

Current monthly payment: $995.21
New monthly payment: $1,421.58
Total interest paid with current mortgage: $122,129
Total interest paid with 15-year refinance: $105,215
Total amount paid with current mortgage: $322,129
Total amount paid with 15-year refinance: $305,215

In this example, you would save $16,914 in interest by refinancing to a 15-year term, but your monthly payment would increase by $426.37.

Benefits of a 15-Year Refinance

A 15-year mortgage refinance offers several advantages:

Lower monthly payments: Shorter loan terms mean you pay less each month.
Faster loan payoff: You can pay off your mortgage in about half the time.
Potential tax benefits: You may qualify for mortgage interest deduction savings.
Reduced interest costs: Lower interest rates can save you thousands over the life of the loan.

Important Note

While a 15-year refinance can save you money, it may not be right for everyone. Consider your financial situation and consult with a mortgage professional before making a decision.

Key Considerations

Before refinancing to a 15-year term, consider these factors:

Factor	Consideration
Interest rate	Compare current rates with refinance rates to ensure you're getting a better deal.
Closing costs	Refinancing typically has closing costs that can offset some savings.
Cash flow	Can you afford higher monthly payments if they're significantly more?
Loan term	Are you comfortable with a shorter loan term?
Future plans	Will you be in the same home for the full 15 years?

Frequently Asked Questions

Is a 15-year mortgage refinance right for me?: It depends on your financial situation. If you can afford higher monthly payments and want to pay off your mortgage faster, a 15-year refinance could be beneficial. However, if you need lower payments or plan to move soon, a longer-term refinance might be better.
How much can I save with a 15-year refinance?: Savings vary based on your current mortgage terms and the new refinance rate. Typically, you can save thousands in interest over the life of the loan, but your monthly payment will be higher than with a longer-term refinance.
What are the closing costs for a 15-year refinance?: Closing costs for a refinance typically range from 2% to 5% of the loan amount. These costs can offset some of the savings from lower interest rates and monthly payments.
Can I refinance to a 15-year term if I have bad credit?: It's more challenging to qualify for a 15-year refinance with bad credit. Lenders may offer longer terms or higher interest rates. It's important to shop around and compare offers from multiple lenders.
What happens if I move before the 15 years are up?: If you sell your home before the 15-year term ends, you'll owe the remaining balance plus any prepayment penalties. It's important to consider your long-term plans when deciding to refinance to a shorter term.