How Calculate Effective Tax Rate

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Mortgage Refinance Savings Calculator

Current Loan

New Loan

Estimated Results

Current Monthly Payment: $0.00
New Monthly Payment: $0.00
Monthly Savings: $0.00
Total Interest Saved (Life of Loan): $0.00
Break-Even Point: 0 Months

Is Refinancing Your Mortgage Worth It?

Mortgage refinancing involves replacing your current home loan with a new one, typically to take advantage of lower interest rates or to change the loan term. While the prospect of a lower monthly payment is enticing, calculating the true savings requires looking at closing costs and the "break-even" point.

Understanding the Break-Even Point

The break-even point is the moment when the amount you've saved on your monthly payments equals the amount you paid in closing costs. For example, if your refinance costs $5,000 and you save $200 per month, your break-even point is 25 months. If you plan to sell your home before those 25 months are up, refinancing might actually cost you money.

Key Benefits of Refinancing

  • Lower Interest Rates: Reducing your rate by even 0.5% to 1% can save tens of thousands of dollars over the life of the loan.
  • Lower Monthly Payments: Improved cash flow for other investments or living expenses.
  • Changing Loan Terms: Switching from a 30-year to a 15-year mortgage helps build equity faster and reduces total interest paid.
  • Switching Loan Types: Moving from an Adjustable-Rate Mortgage (ARM) to a Fixed-Rate Mortgage provides long-term stability.

Example Calculation

Imagine you have a $300,000 balance on a 30-year mortgage at 6.5%. Your monthly principal and interest payment is approximately $1,896. If you refinance into a new 30-year loan at 5.0%, your new payment would be $1,610.

In this scenario, you save $286 per month. If the closing costs for the new loan are $6,000, it will take you roughly 21 months to break even. Beyond that point, the $286 monthly savings is pure profit.

function calculateRefi() { // Get Input Values var balance = parseFloat(document.getElementById('currentBalance').value); var currentRate = parseFloat(document.getElementById('currentRate').value) / 100 / 12; var currentTermMonths = parseFloat(document.getElementById('remainingTerm').value) * 12; var newRate = parseFloat(document.getElementById('newRate').value) / 100 / 12; var newTermMonths = parseFloat(document.getElementById('newTerm').value) * 12; var closingCosts = parseFloat(document.getElementById('closingCosts').value); // Validation if (isNaN(balance) || isNaN(currentRate) || isNaN(newRate) || balance 0 ? "#2e7d32" : "#d32f2f"; document.getElementById('resTotalInterest').innerText = '$' + totalInterestSaved.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); if (monthlySavings > 0) { document.getElementById('resBreakEven').innerText = Math.ceil(breakEven) + " Months (" + (breakEven / 12).toFixed(1) + " Years)"; } else { document.getElementById('resBreakEven').innerText = "Never (No monthly savings)"; } // Scroll to results document.getElementById('refiResults').scrollIntoView({ behavior: 'smooth', block: 'nearest' }); }

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