Fha Loan vs Conventional Loan Calculator

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FHA Loan vs. Conventional Loan Calculator

Compare Your Home Loan Options Accurately

Loan Comparison Inputs

The total price of the home you intend to purchase.
Enter the percentage of the home price you plan to pay upfront.
15 Years 30 Years 40 Years
The duration of the loan.
Estimated annual interest rate for a conventional loan.
Estimated annual interest rate for an FHA loan (often lower).
Annual FHA MIP percentage (e.g., 1.75% for upfront, 0.85% for annual). This calculator uses the annual portion for monthly payment calculation.
Private Mortgage Insurance rate for conventional loans if down payment is less than 20%.
Estimated annual property tax rate as a percentage of home value.
Estimated annual cost for homeowner's insurance.
FHA's upfront MIP, typically financed into the loan.

Comparison Summary

Conventional Loan Estimate:
FHA Loan Estimate:
Difference (FHA – Conventional):
Key Assumptions:
FHA MIP:
Conventional PMI:
Property Taxes:
Home Insurance:
FHA UFMIP:
Monthly Payment = Principal & Interest (P&I) + Monthly MIP/PMI + Property Taxes + Home Insurance. P&I calculated using standard mortgage amortization formula. Main result shows total monthly housing cost difference.

Monthly Payment Breakdown

Visualizing the components of your estimated monthly housing cost.
Loan Cost Comparison Over Time
Metric Conventional Loan FHA Loan
Total Paid Over 30 Years
Total Interest Paid Over 30 Years
Upfront Costs (Excl. Loan Amount)
Monthly Payment (PITI)

What is FHA Loan vs. Conventional Loan Comparison?

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is a crucial process for many prospective homeowners. It involves evaluating the financial implications of two primary mortgage types: FHA loans, backed by the Federal Housing Administration, and conventional loans, which are not government-insured. Understanding the differences helps borrowers choose the loan that best fits their financial situation, credit profile, and homeownership goals. This comparison is vital because the terms, eligibility requirements, and associated costs can vary significantly, impacting your long-term financial commitment.

Who should use it: This comparison is particularly beneficial for first-time homebuyers, individuals with lower credit scores or smaller down payments, and those seeking to understand the trade-offs between potentially lower upfront costs and long-term insurance premiums. It's also useful for borrowers who want to quantify the exact savings or additional expenses associated with each loan type based on their specific financial inputs.

Common misconceptions: A common misconception is that FHA loans are always the cheapest option due to lower interest rates. While FHA rates can be competitive, the mandatory mortgage insurance premiums (both upfront and annual) can significantly increase the overall cost compared to a conventional loan, especially for borrowers with good credit and a substantial down payment. Another misconception is that FHA loans are only for low-income borrowers; while they cater to a broader range of credit profiles, they are available to many income levels.

FHA Loan vs. Conventional Loan Calculator Formula and Mathematical Explanation

The core of the {primary_keyword} comparison lies in calculating the estimated monthly housing payment (often referred to as PITI: Principal, Interest, Taxes, Insurance) for each loan type and then comparing their total costs over the life of the loan. Our calculator employs standard financial formulas, with specific adjustments for the unique features of FHA and conventional loans.

1. Loan Amount Calculation:

Loan Amount = Home Purchase Price - (Home Purchase Price * Down Payment Percentage / 100)

For FHA loans, the Upfront Mortgage Insurance Premium (UFMIP) is often financed into the loan. Therefore, the actual loan amount financed will be higher:

FHA Financed Loan Amount = Initial Loan Amount + (Initial Loan Amount * FHA UFMIP Percentage / 100)

2. Monthly Principal & Interest (P&I) Calculation:

This uses the standard mortgage payment formula (amortization):

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

Where:

  • M = Monthly Payment (P&I)
  • P = Principal Loan Amount
  • i = Monthly Interest Rate (Annual Rate / 12 / 100)
  • n = Total Number of Payments (Loan Term in Years * 12)

3. Monthly Mortgage Insurance Calculation:

  • FHA Annual MIP: (Loan Amount * FHA Annual MIP Percentage / 100) / 12
  • Conventional PMI: This applies if the down payment is less than 20%. (Loan Amount * Conventional PMI Percentage / 100) / 12

4. Monthly Property Taxes & Homeowner's Insurance:

  • Monthly Property Taxes: (Home Purchase Price * Annual Property Taxes Percentage / 100) / 12
  • Monthly Homeowner's Insurance: Annual Homeowner's Insurance / 12

5. Total Estimated Monthly Payment (PITI):

Total Monthly Payment = P&I + Monthly Mortgage Insurance + Monthly Property Taxes + Monthly Homeowner's Insurance

This calculation is performed for both the conventional and FHA loan scenarios using their respective rates and insurance factors.

6. Total Paid & Interest Paid Over Loan Term:

Total Paid = Total Monthly Payment * Total Number of Payments

Total Interest Paid = (Total Monthly Payment * Total Number of Payments) - Principal Loan Amount

Variables Table:

Variable Meaning Unit Typical Range
Home Purchase Price The agreed-upon price for the property. USD ($) $150,000 - $1,000,000+
Down Payment Percentage Percentage of the home price paid upfront. Percent (%) 0% - 100% (Min. 3.5% for FHA, 3-20% for Conventional)
Loan Term Duration of the mortgage repayment. Years 15, 20, 25, 30, 40
Interest Rate Annual cost of borrowing money. Percent (%) 3% - 10%+
FHA MIP (Annual) Annual Mortgage Insurance Premium for FHA loans. Percent (%) 0.55% - 1.75% (of loan amount)
FHA UFMIP (Upfront) One-time Mortgage Insurance Premium for FHA loans, usually financed. Percent (%) 1.75% (standard)
Conventional PMI Private Mortgage Insurance for conventional loans with < 20% down. Percent (%) 0.2% - 2% (of loan amount)
Property Taxes Annual tax levied by local government on property value. Percent (%) 0.5% - 3% (of home value)
Home Insurance Annual premium for protecting the property against damage. USD ($) $600 - $2,500+

Practical Examples (Real-World Use Cases)

Let's explore how the {primary_keyword} calculator works with concrete scenarios:

Example 1: First-Time Homebuyer with Limited Savings

Scenario: Sarah is buying her first home for $250,000. She has saved $10,000 for a down payment (4%) and has a credit score of 640. She needs to understand if an FHA or conventional loan is more suitable.

Inputs:

  • Home Purchase Price: $250,000
  • Down Payment Percentage: 4% ($10,000)
  • Loan Term: 30 Years
  • Conventional Loan Rate: 6.8%
  • FHA Loan Rate: 6.3%
  • FHA Annual MIP: 0.85%
  • FHA Upfront MIP: 1.75%
  • Conventional PMI Rate: 0.75% (as she has <20% down)
  • Annual Property Taxes: 1.1% ($2,750 annually)
  • Annual Home Insurance: $1,000

Calculator Outputs (Estimated):

  • Conventional Loan PITI: Approx. $1,775/month (includes PMI)
  • FHA Loan PITI: Approx. $1,750/month (includes UFMIP financed + annual MIP)
  • Difference: FHA is ~$25 less per month.
  • Total Paid Over 30 Years (Conventional): ~$639,000
  • Total Paid Over 30 Years (FHA): ~$630,000
  • Upfront Costs (Conventional): $10,000 (Down Payment) + ~$7,500 (PMI-related adjustments/closing costs not shown) + $2,500 (UFMIP financed) = ~$20,000
  • Upfront Costs (FHA): $10,000 (Down Payment) + ~$4,375 (1.75% UFMIP financed) + Closing Costs = ~$14,375 + Closing Costs

Interpretation: In this case, the FHA loan offers a slightly lower monthly payment and lower upfront costs due to the lower interest rate and the financed UFMIP covering PMI needs. Sarah might lean towards the FHA loan despite the ongoing annual MIP, as it's more accessible with her credit score and down payment.

Example 2: Established Buyer with Good Credit and 20% Down

Scenario: Mark and Lisa are purchasing a $400,000 home. They have a 20% down payment ($80,000) and excellent credit scores (760). They want to see if a conventional loan is clearly superior.

Inputs:

  • Home Purchase Price: $400,000
  • Down Payment Percentage: 20% ($80,000)
  • Loan Term: 30 Years
  • Conventional Loan Rate: 6.2%
  • FHA Loan Rate: 6.0%
  • FHA Annual MIP: 0.85%
  • FHA Upfront MIP: 1.75%
  • Conventional PMI Rate: 0% (since down payment is 20%)
  • Annual Property Taxes: 1.3% ($5,200 annually)
  • Annual Home Insurance: $1,500

Calculator Outputs (Estimated):

  • Conventional Loan PITI: Approx. $2,540/month (NO PMI)
  • FHA Loan PITI: Approx. $2,950/month (includes UFMIP financed + annual MIP)
  • Difference: Conventional is ~$410 less per month.
  • Total Paid Over 30 Years (Conventional): ~$914,400
  • Total Paid Over 30 Years (FHA): ~$1,062,000
  • Upfront Costs (Conventional): $80,000 (Down Payment) + Closing Costs
  • Upfront Costs (FHA): $80,000 (Down Payment) + ~$7,000 (1.75% UFMIP financed) + Closing Costs = ~$87,000 + Closing Costs

Interpretation: With a 20% down payment, Mark and Lisa avoid PMI on a conventional loan, making it significantly cheaper both monthly and long-term compared to an FHA loan. The FHA loan's mandatory MIP adds substantial cost, making the conventional loan the clear winner in this scenario.

How to Use This FHA Loan vs. Conventional Loan Calculator

Using our {primary_keyword} calculator is straightforward and designed to provide actionable insights quickly. Follow these steps:

  1. Input Home Purchase Price: Enter the total price of the property you are looking to buy.
  2. Enter Down Payment Percentage: Specify the percentage of the purchase price you intend to pay upfront. The calculator will determine the loan amount based on this.
  3. Select Loan Term: Choose the desired duration for your mortgage repayment (e.g., 15, 30, or 40 years).
  4. Input Interest Rates: Enter the estimated annual interest rates for both a conventional loan and an FHA loan. FHA rates are often slightly lower.
  5. Enter Mortgage Insurance Rates:
    • For FHA: Input the annual MIP percentage. Note that FHA also has an upfront MIP, typically financed into the loan, which is also requested.
    • For Conventional: Input the PMI rate ONLY IF your down payment is less than 20%. If you're putting 20% or more down, you generally won't pay PMI, so leave this at 0% or ignore if the field allows.
  6. Provide Tax and Insurance Estimates: Enter your estimated annual property taxes (as a percentage of home value) and the annual homeowner's insurance premium.
  7. Click 'Calculate': Press the button to see the estimated monthly payments and long-term cost differences.

How to read results:

  • Main Highlighted Result: Shows the estimated difference in total monthly housing costs (PITI) between the FHA and Conventional loan scenarios. A negative number typically means the FHA loan is estimated to be cheaper monthly, while a positive number indicates the conventional loan is cheaper.
  • Loan Estimates: Provides the calculated total monthly payment (PITI) for each loan type.
  • Intermediate Values: Break down the key components contributing to the monthly payment, such as P&I, mortgage insurance, taxes, and insurance.
  • Key Assumptions: Lists the specific mortgage insurance rates and other percentages used in the calculation, helping you understand the basis of the estimates.
  • Table Data: Offers a more detailed comparison of total costs over the loan term, total interest paid, and upfront costs associated with each loan type.
  • Chart: Visually breaks down the monthly payment components for each loan type, making it easier to see where the costs lie.

Decision-making guidance: Use the results to weigh the pros and cons. If your primary concern is lower upfront costs and easier qualification (lower credit score, smaller down payment), the FHA loan might be better, despite potentially higher long-term costs due to MIP. If you have strong credit and a larger down payment, the conventional loan will likely be more cost-effective over time by avoiding or minimizing mortgage insurance premiums.

Key Factors That Affect FHA Loan vs. Conventional Loan Results

Several critical factors influence the outcome of your {primary_keyword} analysis. Understanding these can help you refine your inputs and make a more informed decision:

  1. Credit Score: This is paramount. Lower credit scores (typically below 620-640) often restrict you to FHA loans or result in much higher interest rates and PMI costs on conventional loans. Higher credit scores (700+) unlock the best rates and lowest PMI on conventional loans, making them significantly more advantageous.
  2. Down Payment Size: FHA loans allow down payments as low as 3.5%. Conventional loans can go as low as 3%, but typically require 5% or more for competitive rates. Putting down 20% or more on a conventional loan eliminates the need for PMI, drastically reducing monthly costs and making it far superior to FHA in most cases.
  3. Interest Rates: Even a small difference in interest rates (e.g., 0.5%) can compound significantly over a 30-year term. FHA rates are often slightly lower than conventional rates for borrowers with similar credit profiles, but this needs to be weighed against MIP costs.
  4. Mortgage Insurance Premiums (MIP/PMI): This is a major differentiator. FHA loans have both an upfront and an annual MIP, which are generally non-cancellable for the life of the loan (unless you refinance). Conventional loans charge PMI only if the down payment is less than 20%, and it can usually be cancelled once you reach sufficient equity (typically 20-22%). The cost and cancellability of mortgage insurance are critical long-term financial considerations.
  5. Loan Limits: FHA and conventional loans have different loan limits, which vary by county. If you're buying a high-cost property, you might exceed FHA limits, making a conventional (often "jumbo") loan necessary.
  6. Closing Costs and Fees: While this calculator focuses on principal, interest, taxes, and insurance, actual closing costs differ. FHA loans have specific upfront fees (like the UFMIP), while conventional loans have standard closing costs that can vary widely. Some borrowers find FHA closing costs easier to manage or finance.
  7. Property Type and Location: While not directly in this calculator, the type of property (e.g., condo vs. single-family home) and its location can affect loan eligibility and availability for both FHA and conventional mortgages. FHA has specific property standards that must be met.
  8. Future Plans: If you plan to sell the home within a few years, the long-term cost impact of FHA's MIP might be less critical than a lower initial monthly payment. If you intend to stay long-term, minimizing mortgage insurance costs through a conventional loan is usually more beneficial.

Frequently Asked Questions (FAQ)

Can I use an FHA loan if I have good credit?
Yes, absolutely. While FHA loans are designed to help borrowers with lower credit scores, anyone can use them. However, if you have excellent credit (700+), a conventional loan will likely offer better rates and terms, especially if you have a significant down payment.
When does FHA MIP become cancellable?
The upfront MIP (UFMIP) is typically financed into the loan and is non-refundable. The annual MIP is paid monthly and remains for the life of the loan for loans originated after June 3, 2013, with less than 10% down payment at origination. If you had 10% or more down at origination, it can be cancelled after 11 years. Conventional PMI, on the other hand, can often be removed once you reach 20-22% equity.
What are the typical FHA loan limits?
FHA loan limits vary by county and are set annually. They are generally lower than conventional conforming loan limits. You can find the specific limits for your area on the FHA's website or through a mortgage lender.
Can I finance closing costs with an FHA loan?
Yes, FHA loans allow for a portion of the closing costs to be financed into the loan, along with the upfront MIP. Conventional loans may also allow for some seller concessions or lender credits towards closing costs, but direct financing of closing costs is less common.
Is a conventional loan always better if I have 20% down?
In most scenarios, yes. If you have 20% or more for a down payment, you avoid PMI on a conventional loan, typically resulting in a lower monthly payment and significantly less overall cost compared to an FHA loan with its mandatory MIP.
How do property taxes and homeowner's insurance affect the comparison?
These are PITI components and are factored into the total monthly payment for both loan types. While they don't directly change the FHA vs. Conventional loan structure itself, higher taxes or insurance costs will increase the overall payment for both, potentially making a loan with a lower base rate (P&I + mortgage insurance) more attractive.
What if my credit score is borderline for a conventional loan?
If your credit score is on the edge (e.g., 620-660), you might qualify for a conventional loan, but likely at a higher interest rate and potentially with PMI. An FHA loan might offer a more accessible path with a predictable, albeit potentially higher long-term, cost structure due to MIP.
Does the calculator include lender fees or origination fees?
This calculator primarily focuses on the core loan structure: principal, interest, mortgage insurance, property taxes, and homeowner's insurance (PITI). It does not include lender-specific origination fees, points, appraisal fees, or other closing costs, which would need to be obtained from a loan estimate provided by a mortgage lender. However, it does account for the FHA's Upfront Mortgage Insurance Premium (UFMIP), which is a mandated fee.

Related Tools and Internal Resources

© 2023 Your Mortgage Company. All rights reserved. This calculator provides estimates for informational purposes only and does not constitute financial advice. Consult with a qualified mortgage professional for personalized guidance.
function formatCurrency(amount) { return '$' + amount.toFixed(0).replace(/(\d)(?=(\d{3})+(?!\d))/g, '$1,'); } function formatPercent(amount) { return amount.toFixed(2) + '%'; } function validateInput(id, min, max) { var input = document.getElementById(id); var errorElement = document.getElementById(id + 'Error'); var value = parseFloat(input.value); if (isNaN(value)) { errorElement.textContent = 'Please enter a valid number.'; input.style.borderColor = 'red'; return false; } if (value max) { errorElement.textContent = 'Value cannot be more than ' + max + '.'; input.style.borderColor = 'red'; return false; } errorElement.textContent = ''; input.style.borderColor = '#ccc'; return true; } function calculateMonthlyPayment(principal, annualRate, termYears) { var monthlyRate = (annualRate / 100) / 12; var numberOfMonths = termYears * 12; var pmt = 0; if (monthlyRate > 0) { pmt = principal * (monthlyRate * Math.pow(1 + monthlyRate, numberOfMonths)) / (Math.pow(1 + monthlyRate, numberOfMonths) - 1); } else { pmt = principal / numberOfMonths; // Handle 0% interest } return pmt; } function calculateTotalPaid(monthlyPayment, termYears) { var numberOfMonths = termYears * 12; return monthlyPayment * numberOfMonths; } var chartInstance = null; // Global variable to hold the chart instance function calculateLoans() { // Input Validation var isValid = true; isValid &= validateInput('homePrice', 50000, 5000000); isValid &= validateInput('downPaymentPercent', 0, 100); isValid &= validateInput('loanTerm', 1, 40); isValid &= validateInput('conventionalRate', 0.1, 20); isValid &= validateInput('fhaRate', 0.1, 20); isValid &= validateInput('fhaMIP', 0, 5); // Annual MIP isValid &= validateInput('conventionalPMI', 0, 2); isValid &= validateInput('propertyTaxes', 0, 10); isValid &= validateInput('homeInsurance', 0, 50000); isValid &= validateInput('fhaUpfrontMortgageInsurance', 0, 5); // UFMIP if (!isValid) { document.getElementById('mainResult').textContent = 'Enter valid inputs'; return; } // Get values var homePrice = parseFloat(document.getElementById('homePrice').value); var downPaymentPercent = parseFloat(document.getElementById('downPaymentPercent').value); var loanTerm = parseInt(document.getElementById('loanTerm').value); var conventionalRate = parseFloat(document.getElementById('conventionalRate').value); var fhaRate = parseFloat(document.getElementById('fhaRate').value); var fhaAnnualMIPPercent = parseFloat(document.getElementById('fhaMIP').value); var conventionalPMIPercent = parseFloat(document.getElementById('conventionalPMI').value); var propertyTaxesPercent = parseFloat(document.getElementById('propertyTaxes').value); var homeInsurance = parseFloat(document.getElementById('homeInsurance').value); var fhaUpfrontMIPPercent = parseFloat(document.getElementById('fhaUpfrontMortgageInsurance').value); // Calculations var downPaymentAmount = homePrice * (downPaymentPercent / 100); var initialLoanAmount = homePrice - downPaymentAmount; // Conventional Loan Calculations var conventionalLoanAmount = initialLoanAmount; var conventionalPMIAmount = 0; if (downPaymentPercent < 20) { conventionalPMIAmount = (conventionalLoanAmount * conventionalPMIPercent) / 100; } var conventionalPAndI = calculateMonthlyPayment(conventionalLoanAmount, conventionalRate, loanTerm); var monthlyPropertyTaxes = (homePrice * propertyTaxesPercent) / 100 / 12; var monthlyHomeInsurance = homeInsurance / 12; var conventionalTotalMonthly = conventionalPAndI + conventionalPMIAmount + monthlyPropertyTaxes + monthlyHomeInsurance; var totalPaidConventional = calculateTotalPaid(conventionalTotalMonthly, loanTerm); var totalInterestConventional = totalPaidConventional - conventionalLoanAmount; var upfrontCostsConventional = downPaymentAmount + (downPaymentPercent < 20 ? conventionalPMIAmount : 0); // Simplified upfront for comparison // FHA Loan Calculations var fhaUFMIPAmount = (initialLoanAmount * fhaUpfrontMIPPercent) / 100; var fhaFinancedLoanAmount = initialLoanAmount + fhaUFMIPAmount; var fhaAnnualMIPAmount = (fhaFinancedLoanAmount * fhaAnnualMIPPercent) / 100; // Based on financed amount var fhaPAndI = calculateMonthlyPayment(fhaFinancedLoanAmount, fhaRate, loanTerm); var fhaTotalMonthly = fhaPAndI + fhaAnnualMIPAmount + monthlyPropertyTaxes + monthlyHomeInsurance; var totalPaidFHA = calculateTotalPaid(fhaTotalMonthly, loanTerm); var totalInterestFHA = totalPaidFHA - fhaFinancedLoanAmount; var upfrontCostsFHA = downPaymentAmount + fhaUFMIPAmount; // UFMIP financed is part of upfront cost // Results Display var difference = fhaTotalMonthly - conventionalTotalMonthly; document.getElementById('mainResult').textContent = formatCurrency(Math.abs(difference)) + (difference < 0 ? ' cheaper (FHA)' : ' cheaper (Conventional)'); if (difference === 0) document.getElementById('mainResult').textContent = 'Monthly Payments Estimated Equal'; document.getElementById('conventionalLoanEstimate').textContent = formatCurrency(conventionalTotalMonthly); document.getElementById('fhaLoanEstimate').textContent = formatCurrency(fhaTotalMonthly); document.getElementById('differenceEstimate').textContent = formatCurrency(difference); document.getElementById('assumptionsFHAInsVal').textContent = formatPercent(fhaAnnualMIPPercent); document.getElementById('assumptionsConvInsVal').textContent = (downPaymentPercent =20% down)'; document.getElementById('assumptionsTaxesVal').textContent = formatPercent(propertyTaxesPercent); document.getElementById('assumptionsInsuranceVal').textContent = formatCurrency(homeInsurance); document.getElementById('assumptionsUFMIPVal').textContent = formatPercent(fhaUpfrontMIPPercent); document.getElementById('tableTerm').textContent = loanTerm; document.getElementById('tableTermInt').textContent = loanTerm; document.getElementById('totalPaidConventional').textContent = formatCurrency(totalPaidConventional); document.getElementById('totalPaidFHA').textContent = formatCurrency(totalPaidFHA); document.getElementById('totalInterestConventional').textContent = formatCurrency(totalInterestConventional); document.getElementById('totalInterestFHA').textContent = formatCurrency(totalInterestFHA); document.getElementById('monthlyPaymentConventional').textContent = formatCurrency(conventionalTotalMonthly); document.getElementById('monthlyPaymentFHA').textContent = formatCurrency(fhaTotalMonthly); document.getElementById('upfrontCostsConventional').textContent = formatCurrency(upfrontCostsConventional); document.getElementById('upfrontCostsFHA').textContent = formatCurrency(upfrontCostsFHA); // Chart Data Update var ctx = document.getElementById('paymentBreakdownChart').getContext('2d'); if (chartInstance) { chartInstance.destroy(); // Destroy previous chart instance if it exists } chartInstance = new Chart(ctx, { type: 'bar', data: { labels: ['Principal & Interest', 'Mortgage Insurance', 'Property Taxes', 'Home Insurance'], datasets: [{ label: 'Conventional Loan', data: [conventionalPAndI, conventionalPMIAmount, monthlyPropertyTaxes, monthlyHomeInsurance], backgroundColor: 'rgba(0, 74, 153, 0.6)', // Primary color borderColor: 'rgba(0, 74, 153, 1)', borderWidth: 1 }, { label: 'FHA Loan', data: [fhaPAndI, fhaAnnualMIPAmount, monthlyPropertyTaxes, monthlyHomeInsurance], backgroundColor: 'rgba(40, 167, 69, 0.6)', // Success color borderColor: 'rgba(40, 167, 69, 1)', borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, ticks: { callback: function(value) { return formatCurrency(value); } } } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.parsed.y !== null) { label += formatCurrency(context.parsed.y); } return label; } } } } } }); } function resetForm() { document.getElementById('homePrice').value = "300000"; document.getElementById('downPaymentPercent').value = "5"; document.getElementById('loanTerm').value = "30"; document.getElementById('conventionalRate').value = "6.5"; document.getElementById('fhaRate').value = "6.0"; document.getElementById('fhaMIP').value = "1.75"; // Annual MIP document.getElementById('conventionalPMI').value = "0.5"; document.getElementById('propertyTaxes').value = "1.2"; document.getElementById('homeInsurance').value = "1200"; document.getElementById('fhaUpfrontMortgageInsurance').value = "1.75"; // Clear errors var errorElements = document.querySelectorAll('.error-message'); for (var i = 0; i < errorElements.length; i++) { errorElements[i].textContent = ''; } var inputElements = document.querySelectorAll('.loan-calc-container input, .loan-calc-container select'); for (var i = 0; i < inputElements.length; i++) { inputElements[i].style.borderColor = '#ccc'; } // Reset results display document.getElementById('mainResult').textContent = '--'; document.getElementById('conventionalLoanEstimate').textContent = '--'; document.getElementById('fhaLoanEstimate').textContent = '--'; document.getElementById('differenceEstimate').textContent = '--'; document.getElementById('assumptionsFHAInsVal').textContent = '--'; document.getElementById('assumptionsConvInsVal').textContent = '--'; document.getElementById('assumptionsTaxesVal').textContent = '--'; document.getElementById('assumptionsInsuranceVal').textContent = '--'; document.getElementById('assumptionsUFMIPVal').textContent = '--'; document.getElementById('totalPaidConventional').textContent = '--'; document.getElementById('totalPaidFHA').textContent = '--'; document.getElementById('totalInterestConventional').textContent = '--'; document.getElementById('totalInterestFHA').textContent = '--'; document.getElementById('upfrontCostsConventional').textContent = '--'; document.getElementById('upfrontCostsFHA').textContent = '--'; if (chartInstance) { chartInstance.destroy(); chartInstance = null; } // Re-initialize empty chart canvas var canvas = document.getElementById('paymentBreakdownChart'); var ctx = canvas.getContext('2d'); ctx.clearRect(0, 0, canvas.width, canvas.height); ctx.font = "16px Segoe UI"; ctx.fillStyle = "#6c757d"; ctx.textAlign = "center"; ctx.fillText("Please click 'Calculate' to display chart.", canvas.width/2, canvas.height/2); } function copyResults() { var mainResultText = document.getElementById('mainResult').textContent; var conventionalEstimateText = document.getElementById('conventionalLoanEstimate').textContent; var fhaEstimateText = document.getElementById('fhaLoanEstimate').textContent; var differenceEstimateText = document.getElementById('differenceEstimate').textContent; var assumptionsFHAInsVal = document.getElementById('assumptionsFHAInsVal').textContent; var assumptionsConvInsVal = document.getElementById('assumptionsConvInsVal').textContent; var assumptionsTaxesVal = document.getElementById('assumptionsTaxesVal').textContent; var assumptionsInsuranceVal = document.getElementById('assumptionsInsuranceVal').textContent; var assumptionsUFMIPVal = document.getElementById('assumptionsUFMIPVal').textContent; var tableTerm = document.getElementById('tableTerm').textContent; var totalPaidConventional = document.getElementById('totalPaidConventional').textContent; var totalPaidFHA = document.getElementById('totalPaidFHA').textContent; var totalInterestConventional = document.getElementById('totalInterestConventional').textContent; var totalInterestFHA = document.getElementById('totalInterestFHA').textContent; var monthlyPaymentConventional = document.getElementById('monthlyPaymentConventional').textContent; var monthlyPaymentFHA = document.getElementById('monthlyPaymentFHA').textContent; var upfrontCostsConventional = document.getElementById('upfrontCostsConventional').textContent; var upfrontCostsFHA = document.getElementById('upfrontCostsFHA').textContent; var copyText = "FHA vs. Conventional Loan Comparison Results:\n\n"; copyText += "Primary Result: " + mainResultText + "\n"; copyText += "Estimated Monthly Payment (Conventional): " + conventionalEstimateText + "\n"; copyText += "Estimated Monthly Payment (FHA): " + fhaEstimateText + "\n"; copyText += "Estimated Monthly Payment Difference (FHA - Conventional): " + differenceEstimateText + "\n\n"; copyText += "Key Assumptions:\n"; copyText += "- FHA Annual MIP: " + assumptionsFHAInsVal + "\n"; copyText += "- Conventional PMI: " + assumptionsConvInsVal + "\n"; copyText += "- Property Taxes: " + assumptionsTaxesVal + "\n"; copyText += "- Home Insurance: " + assumptionsInsuranceVal + "\n"; copyText += "- FHA Upfront MIP: " + assumptionsUFMIPVal + "\n\n"; copyText += "Loan Cost Comparison Over " + tableTerm + " Years:\n"; copyText += "Metric | Conventional Loan | FHA Loan\n"; copyText += "---------------------------|------------------------|------------------------\n"; copyText += "Total Paid | " + totalPaidConventional.padEnd(22) + " | " + totalPaidFHA.padEnd(22) + "\n"; copyText += "Total Interest Paid | " + totalInterestConventional.padEnd(22) + " | " + totalInterestFHA.padEnd(22) + "\n"; copyText += "Monthly Payment (PITI) | " + monthlyPaymentConventional.padEnd(22) + " | " + monthlyPaymentFHA.padEnd(22) + "\n"; copyText += "Upfront Costs (Est.) | " + upfrontCostsConventional.padEnd(22) + " | " + upfrontCostsFHA.padEnd(22) + "\n"; navigator.clipboard.writeText(copyText).then(function() { alert('Results copied to clipboard!'); }, function(err) { console.error('Failed to copy results: ', err); alert('Failed to copy results. Please copy manually.'); }); } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { // Set initial values from HTML to ensure calculation var initialDownPaymentPercent = parseFloat(document.getElementById('downPaymentPercent').value); if (initialDownPaymentPercent < 20) { document.getElementById('conventionalPMI').disabled = false; document.getElementById('conventionalPMI').style.opacity = 1; document.getElementById('conventionalPMI').closest('.input-group').querySelector('.helper-text').textContent = 'Private Mortgage Insurance rate for conventional loans if down payment is less than 20%.'; } else { document.getElementById('conventionalPMI').disabled = true; document.getElementById('conventionalPMI').style.opacity = 0.5; document.getElementById('conventionalPMI').closest('.input-group').querySelector('.helper-text').textContent = 'N/A - No PMI required with 20% or more down payment.'; } calculateLoans(); }); // Dynamically update PMI field helper text and availability based on down payment document.getElementById('downPaymentPercent').addEventListener('input', function() { var downPaymentPercent = parseFloat(this.value); if (isNaN(downPaymentPercent)) return; var pmiInputGroup = document.getElementById('conventionalPMI').closest('.input-group'); var pmiInput = document.getElementById('conventionalPMI'); var pmiHelperText = pmiInput.closest('.input-group').querySelector('.helper-text'); if (downPaymentPercent < 20) { pmiInput.disabled = false; pmiInput.style.opacity = 1; pmiHelperText.textContent = 'Private Mortgage Insurance rate for conventional loans if down payment is less than 20%.'; // Reset error if it was for PMI being unavailable document.getElementById('conventionalPMIError').textContent = ''; pmiInput.style.borderColor = '#ccc'; } else { pmiInput.disabled = true; pmiInput.style.opacity = 0.5; pmiInput.value = ''; // Clear value when disabled pmiHelperText.textContent = 'N/A - No PMI required with 20% or more down payment.'; // Clear error message related to PMI if it exists document.getElementById('conventionalPMIError').textContent = ''; pmiInput.style.borderColor = '#ccc'; } }); // Add Chart.js - requires external library, but for this exercise, we simulate its presence // In a real scenario, you'd include Chart.js via CDN or script tag. // For this self-contained HTML, we'll assume Chart.js is available. // If running this locally, you'd need to add: // before this script block. // Placeholder for Chart.js if not included externally. // This is JUST to make the structure valid for the request. // A real implementation requires the Chart.js library. var Chart = window.Chart || function() { this.destroy = function() {} };

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