Refinance Equity Loan Calculator

Refinance Equity Loan Calculator – Optimize Your Home Equity Loan Refinance body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; background-color: #f8f9fa; margin: 0; padding: 0; } .container { max-width: 1000px; margin: 20px auto; padding: 20px; background-color: #fff; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); border-radius: 8px; display: flex; flex-direction: column; align-items: center; } header { width: 100%; text-align: center; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid #eee; } h1 { color: #004a99; font-size: 2.5em; margin-bottom: 10px; } .subtitle { font-size: 1.1em; color: #555; } .loan-calc-container { width: 100%; background-color: #ffffff; padding: 30px; border-radius: 8px; box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.05); margin-bottom: 30px; } .loan-calc-container h2 { color: #004a99; text-align: center; margin-bottom: 25px; font-size: 1.8em; } .input-group { margin-bottom: 20px; width: 100%; display: flex; 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Refinance Equity Loan Calculator

Estimate your new monthly payments and potential savings when refinancing a home equity loan.

Equity Loan Refinance Details

The outstanding principal on your current equity loan.
Your current annual interest rate.
The number of months left to repay your current loan.
The proposed annual interest rate for the new loan.
The total number of months for the new loan term.
Include all costs associated with refinancing (appraisal, title, etc.).

Refinance Summary

Estimated Monthly Savings
Current Monthly Payment:
New Refinanced Monthly Payment:
Total Interest Paid (Current Loan):
Total Interest Paid (New Loan):
Total Cost (New Loan incl. Fees):
How it's Calculated:

Monthly Payments are calculated using the standard amortizing loan formula: M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1]. P is the principal loan amount, i is the monthly interest rate (annual rate / 12), and n is the total number of payments (loan term in months). Fees are added to the principal for the new loan calculation.

Loan Amortization Comparison

This chart visually compares the principal and interest breakdown over time for your current loan versus the refinanced loan.

Key Assumptions and Variables
Variable Current Loan New Refinanced Loan
Principal Loan Amount
Annual Interest Rate
Loan Term (Months)
Estimated Monthly Payment
Total Interest Paid
Total Cost (incl. Fees)

What is a Refinance Equity Loan Calculator?

{primary_keyword} is a specialized financial tool designed to help homeowners understand the implications of refinancing an existing home equity loan or home equity line of credit (HELOC). Homeowners often consider refinancing their equity loan when they seek a lower interest rate, a different repayment term, or wish to consolidate debt. This calculator allows users to input their current loan details (balance, rate, term) and proposed new loan details (rate, term, fees) to estimate the impact on their monthly payments, total interest paid, and overall loan cost.

Who should use it? Homeowners who currently have a home equity loan or HELOC and are considering refinancing. This includes individuals looking to reduce their monthly housing expenses, pay off their loan faster, or access their home's equity under new terms. It's also useful for those comparing offers from different lenders for a refinance.

Common misconceptions: A common misconception is that refinancing always leads to savings. While often true, high refinancing fees or choosing a longer term than necessary can sometimes negate savings or even increase the total cost. Another misconception is that the interest rate is the only factor; the loan term and associated fees play a significant role in the overall financial outcome. Understanding the full picture is key, which is precisely why a refinance equity loan calculator is so valuable.

Refinance Equity Loan Calculation and Mathematical Explanation

The core of the refinance equity loan calculator relies on the standard loan amortization formula to calculate monthly payments. We then compare these payments and total interest costs under current and proposed new loan scenarios.

Formula for Monthly Payment (M):

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

Where:

  • P = Principal Loan Amount (including refinance fees for the new loan)
  • i = Monthly Interest Rate (Annual Interest Rate / 12)
  • n = Total Number of Payments (Loan Term in Months)

For the refinance calculation, the new principal (P_new) will be the current loan balance plus any refinance fees. The new monthly payment (M_new) is calculated using P_new, the new monthly interest rate (i_new), and the new loan term in months (n_new).

The total interest paid for each loan is calculated as: (Monthly Payment * Number of Months) – Principal Loan Amount.

The estimated monthly savings are then: Current Monthly Payment – New Refinanced Monthly Payment.

Variable Explanations

Variable Meaning Unit Typical Range
P (Principal) The initial amount borrowed, including rolled-in fees for the new loan. Currency ($) $10,000 – $500,000+
i (Monthly Interest Rate) The interest rate charged per month. Decimal (e.g., 0.05 / 12) 0.002 – 0.015 (approx. 2.4% to 18% annual)
n (Number of Payments) The total number of monthly payments over the life of the loan. Months 60 – 360
M (Monthly Payment) The fixed amount paid each month towards principal and interest. Currency ($) Calculated based on P, i, n
Refinance Fees Costs associated with obtaining the new loan. Currency ($) $500 – $5,000+

Practical Examples (Real-World Use Cases)

Let's look at two scenarios to illustrate how the refinance equity loan calculator works.

Example 1: Seeking Lower Monthly Payments

Scenario: Sarah has an existing home equity loan with a balance of $100,000, an interest rate of 8.0%, and 20 years (240 months) remaining. She's found an offer to refinance with a new loan of $100,000 (plus $2,000 in fees, making the new principal $102,000) at 6.0% interest for 25 years (300 months).

Inputs for Calculator:

  • Current Equity Loan Balance: $100,000
  • Current Interest Rate: 8.0%
  • Current Remaining Term: 240 months
  • New Refinanced Interest Rate: 6.0%
  • New Refinanced Loan Term: 300 months
  • Estimated Refinance Fees: $2,000

Calculator Output (Illustrative):

  • Current Monthly Payment: $836.44
  • New Refinanced Monthly Payment: $699.21
  • Estimated Monthly Savings: $137.23
  • Total Interest Paid (Current Loan): $100,645.60
  • Total Interest Paid (New Loan): $107,763.00
  • Total Cost (New Loan incl. Fees): $109,763.00

Financial Interpretation: By refinancing, Sarah significantly reduces her monthly payment by $137.23. However, because she extended her loan term from 20 to 25 years, she will pay approximately $7,117 more in total interest over the life of the loan. This example highlights the trade-off between lower monthly payments and increased long-term cost, a crucial insight provided by the refinance equity loan calculator.

Example 2: Faster Payoff with Moderate Savings

Scenario: Mark has an equity loan with $50,000 remaining, a 7.0% interest rate, and 15 years (180 months) left. He secured a refinance offer for $50,000 (plus $1,500 in fees, new principal $51,500) at 6.5% interest for a shorter term of 10 years (120 months).

Inputs for Calculator:

  • Current Equity Loan Balance: $50,000
  • Current Interest Rate: 7.0%
  • Current Remaining Term: 180 months
  • New Refinanced Interest Rate: 6.5%
  • New Refinanced Loan Term: 120 months
  • Estimated Refinance Fees: $1,500

Calculator Output (Illustrative):

  • Current Monthly Payment: $449.35
  • New Refinanced Monthly Payment: $536.01
  • Estimated Monthly Savings: -$86.66 (Increase)
  • Total Interest Paid (Current Loan): $30,878.00
  • Total Interest Paid (New Loan): $12,821.20
  • Total Cost (New Loan incl. Fees): $14,321.20

Financial Interpretation: In this case, Mark's monthly payment increases by $86.66. However, the refinance equity loan calculator reveals substantial long-term benefits: he will save over $18,000 in interest and pay off his loan 5 years sooner. This demonstrates that even if monthly payments rise, refinancing can be beneficial if it leads to significant interest savings and a quicker debt-free status.

How to Use This Refinance Equity Loan Calculator

Using our refinance equity loan calculator is straightforward. Follow these steps to get accurate estimates:

  1. Enter Current Loan Details: Input your current outstanding equity loan balance, the annual interest rate you're currently paying, and the number of months remaining on your loan term.
  2. Enter New Loan Details: Input the proposed interest rate for the new refinanced loan and the desired total term in months for this new loan.
  3. Add Refinance Fees: Estimate and enter any costs associated with the refinancing process. This might include appraisal fees, title insurance, recording fees, etc. These fees are typically added to the new loan balance.
  4. Click 'Calculate Refinance': The calculator will process your inputs.

How to Read Results:

  • Estimated Monthly Savings: This is the primary metric. A positive number indicates you'll save money each month compared to your current payment. A negative number means your payment will increase.
  • Current/New Monthly Payment: Shows the exact estimated monthly payment for both scenarios.
  • Total Interest Paid: Compare the total interest you'd pay over the life of the current loan versus the new loan. A lower number is generally better.
  • Total Cost (New Loan incl. Fees): This includes the principal balance plus all interest paid and refinance fees, giving you the total out-of-pocket expense for the new loan.
  • Table and Chart: The table provides a detailed breakdown of key figures, while the chart offers a visual comparison of loan amortization.

Decision-Making Guidance: Use the results to weigh the pros and cons. If your goal is immediate monthly cash flow relief, focus on significant monthly savings, even if it means a slightly higher total interest cost due to a longer term. If your priority is long-term cost reduction and faster debt freedom, look for scenarios that minimize total interest paid, even if monthly payments are similar or slightly higher. Always consider the break-even point – how long it takes for the monthly savings to offset the refinance fees.

Key Factors That Affect Refinance Equity Loan Results

Several factors significantly influence the outcome of refinancing your home equity loan. Understanding these can help you make a more informed decision:

  1. Interest Rates: This is arguably the most critical factor. A lower interest rate on the new loan directly translates to lower monthly payments and less interest paid over time. Market conditions heavily influence available refinance rates.
  2. Loan Term: Extending the loan term (e.g., from 15 to 30 years) will lower your monthly payments but increase the total interest paid significantly. Shortening the term often increases monthly payments but reduces overall interest costs and allows you to become debt-free sooner.
  3. Refinance Fees: Origination fees, appraisal costs, title insurance, and other closing costs associated with the new loan can add thousands of dollars. These fees must be factored into the total cost and the break-even analysis. If fees are high, it might take years for the lower monthly payments to recoup the cost.
  4. Current Loan Balance: The amount you still owe impacts the principal of the new loan. If you plan to roll in additional debt or cover closing costs, the new principal will be higher, affecting payments and total interest.
  5. Home Equity: Lenders assess your loan-to-value (LTV) ratio. If you have substantial equity, you're likely to qualify for better interest rates. Limited equity might restrict your options or lead to less favorable terms.
  6. Personal Financial Situation: Your credit score, income, and debt-to-income ratio are crucial for qualifying for a refinance and securing the best rates. Improving these factors before applying can lead to better refinance offers.
  7. Economic Conditions: Broader economic factors like inflation and the Federal Reserve's monetary policy can influence overall interest rate trends, affecting the attractiveness of refinancing at any given time.
  8. Future Plans: Consider how long you plan to stay in the home. If you intend to sell soon, a shorter loan term might be preferable to minimize interest, even if payments are higher.

Frequently Asked Questions (FAQ)

Common Questions About Refinancing Equity Loans

Q1: Can refinancing my equity loan actually cost me more?

A: Yes, it's possible. If you refinance into a significantly longer loan term or if the refinance fees are very high, the total interest paid over the life of the loan could increase, even if your monthly payments decrease. Our calculator helps you see this trade-off.

Q2: What is the break-even point for refinancing?

A: The break-even point is the number of months it takes for your monthly savings to equal the total cost of refinancing (fees). You can estimate this by dividing the total refinance fees by your estimated monthly savings. If you plan to move before reaching the break-even point, refinancing might not be financially beneficial.

Q3: Should I refinance my HELOC or a fixed equity loan?

A: Both can be refinanced. HELOCs often have variable rates, making refinancing attractive when rates rise. Fixed equity loans can be refinanced to secure a lower fixed rate or a different term. The calculator applies the same logic to either, focusing on the balance, rate, and term.

Q4: What are typical refinance fees for an equity loan?

A: Fees can vary widely but commonly include appraisal fees ($300-$600), title search and insurance ($500-$1,500), credit report fees ($30-$50), recording fees ($50-$200), and lender origination fees (often 0.5% to 1% of the loan amount). Some lenders offer no-closing-cost refinances, but these often have slightly higher interest rates.

Q5: How does my credit score affect refinancing?

A: A higher credit score generally qualifies you for lower interest rates, which is the primary driver of savings when refinancing. Lenders see borrowers with higher scores as less risky. If your score has improved since you took out the original loan, you're in a stronger position.

Q6: Can I roll closing costs into the new loan?

A: Yes, it's common practice. The calculator accounts for this by adding refinance fees to the current loan balance to determine the new principal amount. This keeps your out-of-pocket expenses low at closing but increases the total amount you borrow and repay.

Q7: What's the difference between refinancing an equity loan and a cash-out refinance on my primary mortgage?

A: A cash-out refinance replaces your entire first mortgage with a new, larger one, allowing you to tap into equity. Refinancing an equity loan specifically targets the second lien (the equity loan itself) to modify its terms, often without affecting your primary mortgage unless you consolidate them.

Q8: Should I refinance if interest rates have only dropped slightly?

A: Consider the break-even point. If rates have dropped by, say, 0.25%, and your refinance fees are substantial, it might take many years to recoup the costs. However, if you have a large loan balance or a long time remaining, even a small rate decrease can yield significant long-term interest savings. Always use the calculator to quantify the impact.

function calculateMonthlyPayment(principal, annualRate, termMonths) { if (principal <= 0 || annualRate < 0 || termMonths <= 0) { return 0; } var monthlyRate = annualRate / 100 / 12; if (monthlyRate === 0) { return principal / termMonths; } var numerator = principal * monthlyRate * Math.pow(1 + monthlyRate, termMonths); var denominator = Math.pow(1 + monthlyRate, termMonths) – 1; return numerator / denominator; } function calculateTotalInterest(monthlyPayment, principal, termMonths) { if (monthlyPayment <= 0) return 0; var totalPaid = monthlyPayment * termMonths; return totalPaid – principal; } function formatCurrency(amount) { if (isNaN(amount) || !isFinite(amount)) { return "–"; } return "$" + amount.toFixed(2).replace(/\B(?=(\d{3})+(?!\d))/g, ","); } function formatRate(rate) { if (isNaN(rate) || !isFinite(rate)) { return "–%"; } return rate.toFixed(2) + "%"; } function formatMonths(months) { if (isNaN(months) || !isFinite(months)) { return "–"; } return months + " months"; } var chartInstance = null; // Global variable to hold chart instance function updateChart(currentPayment, newPayment, currentRate, newRate, currentTerm, newTerm, currentPrincipal, newPrincipal) { var ctx = document.getElementById('amortizationChart').getContext('2d'); // Destroy previous chart if it exists if (chartInstance) { chartInstance.destroy(); } // Calculate amortization schedules var currentAmortization = []; var newAmortization = []; var principalRemainingCurrent = currentPrincipal; var principalRemainingNew = newPrincipal; var monthlyRateCurrent = currentRate / 100 / 12; var monthlyRateNew = newRate / 100 / 12; for (var i = 0; i < Math.max(currentTerm, newTerm); i++) { var currentMonthPayment = calculateMonthlyPayment(currentPrincipal, currentRate, currentTerm); var newMonthPayment = calculateMonthlyPayment(newPrincipal, newRate, newTerm); if (i < currentTerm) { var interestCurrent = principalRemainingCurrent * monthlyRateCurrent; var principalPaidCurrent = currentMonthPayment – interestCurrent; principalRemainingCurrent = Math.max(0, principalRemainingCurrent – principalPaidCurrent); currentAmortization.push({ month: i + 1, principal: currentPrincipal – principalRemainingCurrent, interest: interestCurrent }); } else { // Add placeholder for months beyond current term if new term is longer if(i < newTerm) { currentAmortization.push({ month: i + 1, principal: currentPrincipal, interest: 0}); } } if (i < newTerm) { var interestNew = principalRemainingNew * monthlyRateNew; var principalPaidNew = newMonthPayment – interestNew; principalRemainingNew = Math.max(0, principalRemainingNew – principalPaidNew); newAmortization.push({ month: i + 1, principal: newPrincipal – principalRemainingNew, interest: interestNew }); } else { // Add placeholder for months beyond new term if current term is longer if(i < currentTerm) { newAmortization.push({ month: i + 1, principal: newPrincipal, interest: 0}); } } if (principalRemainingCurrent <= 0 && principalRemainingNew <= 0) break; // Stop if both loans are paid off } // Determine the maximum number of months to display on the chart var maxMonths = Math.max(currentTerm, newTerm); // Ensure at least some months are shown, adjust if needed if (maxMonths < 12) maxMonths = 12; // Prepare data for chart.js (or similar logic for native canvas) var labels = []; var currentPrincipalData = []; var newPrincipalData = []; // Generate labels up to maxMonths, or a reasonable limit like 360 var chartMonthsLimit = Math.min(maxMonths, 360); // Limit chart to 30 years for performance/readability for (var m = 1; m p.month sum + (p.principal), 0); currentPrincipalData.push(currentPrincipal – currentAmortPoint); } else { currentPrincipalData.push(currentPrincipal); // If month exceeds term, show original principal (or 0 if paid off) } // Find principal balance at month m for new loan var newLoanDataPoint = newAmortization.find(function(point) { return point.month === m; }); if (newLoanDataPoint) { var newAmortPoint = newAmortization.filter(p => p.month sum + (p.principal), 0); newPrincipalData.push(newPrincipal – newAmortPoint); } else { newPrincipalData.push(newPrincipal); // If month exceeds term, show original principal (or 0 if paid off) } } chartInstance = new Chart(ctx, { type: 'line', data: { labels: labels, datasets: [{ label: 'Current Loan Remaining Balance', data: currentPrincipalData, borderColor: '#004a99', backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: false, tension: 0.1 }, { label: 'New Loan Remaining Balance', data: newPrincipalData, borderColor: '#28a745', backgroundColor: 'rgba(40, 167, 69, 0.1)', fill: false, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: false, title: { display: true, text: 'Remaining Loan Balance ($)' } }, x: { title: { display: true, text: 'Month' } } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || "; 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isValid &= validateInput('currentLoanBalance'); isValid &= validateInput('currentInterestRate'); isValid &= validateInput('currentLoanTermMonths', 1); isValid &= validateInput('newInterestRate'); isValid &= validateInput('newLoanTermMonths', 1); isValid &= validateInput('refinanceFees'); if (!isValid) { return; } var currentLoanBalance = parseFloat(document.getElementById('currentLoanBalance').value); var currentInterestRate = parseFloat(document.getElementById('currentInterestRate').value); var currentLoanTermMonths = parseInt(document.getElementById('currentLoanTermMonths').value); var newInterestRate = parseFloat(document.getElementById('newInterestRate').value); var newLoanTermMonths = parseInt(document.getElementById('newLoanTermMonths').value); var refinanceFees = parseFloat(document.getElementById('refinanceFees').value); // Calculate current loan details var currentMonthlyPayment = calculateMonthlyPayment(currentLoanBalance, currentInterestRate, currentLoanTermMonths); var currentTotalInterest = calculateTotalInterest(currentMonthlyPayment, currentLoanBalance, currentLoanTermMonths); // Calculate new loan details var newPrincipal = currentLoanBalance + refinanceFees; var newMonthlyPayment = calculateMonthlyPayment(newPrincipal, newInterestRate, newLoanTermMonths); var newTotalInterest = calculateTotalInterest(newMonthlyPayment, newPrincipal, newLoanTermMonths); var newTotalCostWithFees = newPrincipal + newTotalInterest; // Calculate savings var monthlySavings = currentMonthlyPayment – newMonthlyPayment; var totalInterestSavings = currentTotalInterest – newTotalInterest; // Update results display document.getElementById('estimatedMonthlySavings').textContent = formatCurrency(monthlySavings); document.getElementById('currentMonthlyPayment').textContent = formatCurrency(currentMonthlyPayment); document.getElementById('newMonthlyPayment').textContent = formatCurrency(newMonthlyPayment); document.getElementById('currentTotalInterest').textContent = formatCurrency(currentTotalInterest); document.getElementById('newTotalInterest').textContent = formatCurrency(newTotalInterest); document.getElementById('newTotalCostWithFees').textContent = formatCurrency(newTotalCostWithFees); // Update table document.getElementById('tableCurrentPrincipal').textContent = formatCurrency(currentLoanBalance); document.getElementById('tableNewPrincipal').textContent = formatCurrency(newPrincipal); document.getElementById('tableCurrentRate').textContent = formatRate(currentInterestRate); document.getElementById('tableNewRate').textContent = formatRate(newInterestRate); document.getElementById('tableCurrentTerm').textContent = formatMonths(currentLoanTermMonths); document.getElementById('tableNewTerm').textContent = formatMonths(newLoanTermMonths); document.getElementById('tableCurrentPayment').textContent = formatCurrency(currentMonthlyPayment); document.getElementById('tableNewPayment').textContent = formatCurrency(newMonthlyPayment); document.getElementById('tableCurrentTotalInterest').textContent = formatCurrency(currentTotalInterest); document.getElementById('tableNewTotalInterest').textContent = formatCurrency(newTotalInterest); document.getElementById('tableCurrentTotalCost').textContent = formatCurrency(currentLoanBalance + currentTotalInterest); document.getElementById('tableNewTotalCost').textContent = formatCurrency(newTotalCostWithFees); // Update Chart updateChart(currentMonthlyPayment, newMonthlyPayment, currentInterestRate, newInterestRate, currentLoanTermMonths, newLoanTermMonths, currentLoanBalance, newPrincipal); } function resetCalculator() { document.getElementById('currentLoanBalance').value = "150000"; document.getElementById('currentInterestRate').value = "6.5"; document.getElementById('currentLoanTermMonths').value = "240"; document.getElementById('newInterestRate').value = "5.0"; document.getElementById('newLoanTermMonths').value = "360"; document.getElementById('refinanceFees').value = "3000"; // Clear errors var errorDivs = document.getElementsByClassName("error-message"); for (var i = 0; i < errorDivs.length; i++) { errorDivs[i].textContent = ""; } // Reset input borders var inputs = document.getElementsByTagName("input"); for (var i = 0; i < inputs.length; i++) { inputs[i].style.borderColor = "#ccc"; } // Reset results document.getElementById('estimatedMonthlySavings').textContent = "–"; document.getElementById('currentMonthlyPayment').textContent = "–"; document.getElementById('newMonthlyPayment').textContent = "–"; document.getElementById('currentTotalInterest').textContent = "–"; document.getElementById('newTotalInterest').textContent = "–"; document.getElementById('newTotalCostWithFees').textContent = "–"; // Reset table document.getElementById('tableCurrentPrincipal').textContent = "–"; document.getElementById('tableNewPrincipal').textContent = "–"; document.getElementById('tableCurrentRate').textContent = "–"; document.getElementById('tableNewRate').textContent = "–"; document.getElementById('tableCurrentTerm').textContent = "–"; document.getElementById('tableNewTerm').textContent = "–"; document.getElementById('tableCurrentPayment').textContent = "–"; document.getElementById('tableNewPayment').textContent = "–"; document.getElementById('tableCurrentTotalInterest').textContent = "–"; document.getElementById('tableNewTotalInterest').textContent = "–"; document.getElementById('tableCurrentTotalCost').textContent = "–"; document.getElementById('tableNewTotalCost').textContent = "–"; // Clear chart var canvas = document.getElementById('amortizationChart'); var ctx = canvas.getContext('2d'); ctx.clearRect(0, 0, canvas.width, canvas.height); if (chartInstance) { chartInstance.destroy(); chartInstance = null; } } function copyResults() { var resultsText = "Refinance Equity Loan Calculator Results:\n\n"; resultsText += "Estimated Monthly Savings: " + document.getElementById('estimatedMonthlySavings').textContent + "\n"; resultsText += "Current Monthly Payment: " + document.getElementById('currentMonthlyPayment').textContent + "\n"; resultsText += "New Refinanced Monthly Payment: " + document.getElementById('newMonthlyPayment').textContent + "\n"; resultsText += "Total Interest Paid (Current Loan): " + document.getElementById('currentTotalInterest').textContent + "\n"; resultsText += "Total Interest Paid (New Loan): " + document.getElementById('newTotalInterest').textContent + "\n"; resultsText += "Total Cost (New Loan incl. Fees): " + document.getElementById('newTotalCostWithFees').textContent + "\n\n"; resultsText += "Key Assumptions:\n"; resultsText += "Current Principal: " + document.getElementById('tableCurrentPrincipal').textContent + "\n"; resultsText += "Current Rate: " + document.getElementById('tableCurrentRate').textContent + "\n"; resultsText += "Current Term: " + document.getElementById('tableCurrentTerm').textContent + "\n"; resultsText += "New Principal (incl. fees): " + document.getElementById('tableNewPrincipal').textContent + "\n"; resultsText += "New Rate: " + document.getElementById('tableNewRate').textContent + "\n"; resultsText += "New Term: " + document.getElementById('tableNewTerm').textContent + "\n"; // Use a temporary textarea to copy text to clipboard var textArea = document.createElement("textarea"); textArea.value = resultsText; document.body.appendChild(textArea); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied!' : 'Copying failed!'; alert(msg); // Simple feedback } catch (err) { alert('Copying failed! Your browser may not support this feature.'); } document.body.removeChild(textArea); } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { calculateRefinance(); // Add event listeners for real-time updates on input change var inputs = document.querySelectorAll('.loan-calc-container input'); for (var i = 0; i < inputs.length; i++) { inputs[i].addEventListener('input', calculateRefinance); inputs[i].addEventListener('change', function() { // Re-validate on change to catch edge cases missed by input event var id = this.id; if (id === 'currentLoanBalance') validateInput(id); else if (id === 'currentInterestRate') validateInput(id); else if (id === 'currentLoanTermMonths') validateInput(id, 1); else if (id === 'newInterestRate') validateInput(id); else if (id === 'newLoanTermMonths') validateInput(id, 1); else if (id === 'refinanceFees') validateInput(id); }); } });

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