Http Money.cnn.com Calculator Real_estate Home-Afford

Determine how much home you can afford based on your income, expenses, and mortgage rates. This calculator uses the standard 28/36 rule where your housing payment should be no more than 28% of your gross monthly income and your total debt payments (including housing) should be no more than 36% of your gross monthly income.

How the Home Affordability Calculator Works

The home affordability calculator estimates the maximum mortgage amount you can qualify for based on your financial situation. It considers your gross monthly income, monthly debt payments, down payment, and mortgage interest rate.

The 28/36 rule is a widely used guideline in the mortgage industry. It suggests that your housing payment (principal, interest, taxes, and insurance) should not exceed 28% of your gross monthly income, and your total debt payments (including housing) should not exceed 36% of your gross monthly income.

Key Factors Considered

Gross monthly income
Monthly debt payments (excluding mortgage)
Down payment amount
Mortgage interest rate
Loan term (typically 15 or 30 years)

How to Use the Calculator

Enter your gross monthly income
Enter your current monthly debt payments (excluding mortgage)
Select your desired down payment percentage
Enter your estimated mortgage interest rate
Choose your preferred loan term (15 or 30 years)
Click "Calculate" to see your estimated maximum mortgage amount

The Formula

The calculator uses the following formula to determine your maximum mortgage amount:

Maximum Mortgage Amount = (Gross Monthly Income × 0.28 - Monthly Debt Payments) × (1 - Down Payment Percentage) × [PMT / (PMT - 1)]

Where PMT = (1 + Monthly Interest Rate)^Number of Payments

The formula accounts for your income, existing debt, down payment, and the mortgage payment structure. The result provides an estimate of how much you can borrow while maintaining the 28/36 rule.

Worked Example

Let's calculate the maximum mortgage amount for someone with:

Gross monthly income: $5,000
Monthly debt payments: $800
Down payment: 20%
Mortgage interest rate: 4.5%
Loan term: 30 years

Step-by-Step Calculation

Calculate the maximum housing payment: 28% of $5,000 = $1,400
Subtract existing debt payments: $1,400 - $800 = $600
Calculate the monthly interest rate: 4.5% ÷ 12 = 0.375%
Calculate the number of payments: 30 years × 12 = 360
Calculate the present value factor: (1 + 0.00375)^360 ≈ 12.88
Calculate the maximum mortgage amount: $600 × 12.88 × (1 - 0.20) ≈ $5,818

This example shows that with the given financial information, the person could potentially qualify for a mortgage of approximately $5,818.

Frequently Asked Questions

What is the 28/36 rule?

The 28/36 rule is a guideline used by lenders to determine if a borrower can afford a mortgage. It states that your housing payment (principal, interest, taxes, and insurance) should not exceed 28% of your gross monthly income, and your total debt payments (including housing) should not exceed 36% of your gross monthly income.

How accurate is this calculator?

This calculator provides an estimate based on the information you provide. Actual mortgage approval depends on many factors including your credit score, debt-to-income ratio, and the lender's underwriting guidelines. It's always best to consult with a mortgage professional for precise advice.

What if I have no monthly debt payments?

If you have no other monthly debt payments, simply enter $0 in the "Monthly Debt Payments" field. The calculator will then use your full 28% housing payment limit to determine your maximum mortgage amount.

Can I use this calculator for a refinance?

This calculator is designed for initial mortgage applications. For refinancing, you should consult with a mortgage professional who can consider your current loan terms and specific refinancing options.