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Mortgage Refinance Savings Calculator

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Refinance Analysis

Current Monthly Payment: $0.00

New Monthly Payment: $0.00

Monthly Savings: $0.00

Lifetime Savings: $0.00

Break-even Point: 0 months


How to Use the Mortgage Refinance Savings Calculator

Deciding when to refinance your home is a major financial decision. Our Mortgage Refinance Savings Calculator helps you determine if the long-term interest savings outweigh the upfront closing costs. To get an accurate result, you will need your current remaining principal balance, your current interest rate, and the quoted rate for your new loan.

Understanding the Break-even Point

The "Break-even Point" is perhaps the most critical metric in refinancing. It represents the number of months it will take for your monthly savings to cover the total closing costs of the new loan. If you plan to sell your home before reaching this point, refinancing might actually cost you money instead of saving it.

Real-World Example Analysis

Let's look at a common scenario:

  • Current Loan: $300,000 balance at 6.5% interest.
  • New Quote: 4.5% interest on a 30-year term.
  • Closing Costs: $5,000.

In this example, your monthly payment would drop from approximately $1,896.20 to $1,520.06. This results in a monthly savings of $376.14. Dividing the $5,000 closing costs by the monthly savings shows a break-even point of roughly 13.3 months. Since most homeowners stay in their homes for at least 5 to 7 years, this refinance would be highly beneficial, yielding over $130,000 in interest savings over 30 years.

Key Factors to Consider

While interest rates are the primary driver, don't forget these factors:

  • Loan Term: Resetting a 30-year mortgage after you've already paid 10 years might lower your payment but increase the total interest paid over time.
  • Closing Costs: These typically range from 2% to 5% of the loan amount. Ensure they are included in your calculation.
  • Equity: If your home value has decreased, you may need to pay for Private Mortgage Insurance (PMI), which can eat into your savings.
function calculateRefi() { var balance = parseFloat(document.getElementById('currentBalance').value); var currentRate = parseFloat(document.getElementById('currentRate').value) / 100 / 12; var newRate = parseFloat(document.getElementById('newRate').value) / 100 / 12; var newTermMonths = parseInt(document.getElementById('newTerm').value) * 12; var closingCosts = parseFloat(document.getElementById('closingCosts').value); if (isNaN(balance) || isNaN(currentRate) || isNaN(newRate) || isNaN(closingCosts) || balance 0) { breakEvenMonths = closingCosts / monthlySavings; } // Update UI document.getElementById('resCurrentPayment').innerText = "$" + currentPayment.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resNewPayment').innerText = "$" + newPayment.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resMonthlySavings').innerText = "$" + monthlySavings.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resTotalSavings').innerText = "$" + (lifetimeSavings > 0 ? lifetimeSavings.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}) : "0.00"); if (monthlySavings <= 0) { document.getElementById('resBreakEven').innerText = "Never (New rate is higher than or equal to current rate)"; document.getElementById('resMonthlySavings').style.color = "#d32f2f"; } else { document.getElementById('resBreakEven').innerText = breakEvenMonths.toFixed(1) + " months"; document.getElementById('resMonthlySavings').style.color = "#2e7d32"; } document.getElementById('refi-results').style.display = "block"; }

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