Purchase Money Mortgage Calculator
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Reviewed by Calculator Editorial Team
Calculate your purchase money mortgage with our free calculator. Understand loan amounts, interest rates, and repayment terms.
How to Use This Calculator
This purchase money mortgage calculator helps you estimate your monthly payments, total interest paid, and loan amortization schedule. Simply enter the required details and click "Calculate" to see your results.
Key Terms
- Purchase Price: The total cost of the property you're purchasing.
- Down Payment: The amount you pay upfront (typically 10-20% of purchase price).
- Loan Amount: The amount financed by the lender (Purchase Price - Down Payment).
- Interest Rate: The annual percentage rate charged by the lender.
- Loan Term: The length of the mortgage in years.
Formula Explained
The calculator uses the standard mortgage payment formula to calculate your monthly payments:
Mortgage Payment Formula
Monthly Payment = P × [r(1 + r)n] / [(1 + r)n - 1]
Where:
- P = Principal loan amount (Loan Amount)
- r = Monthly interest rate (Annual Rate / 12 / 100)
- n = Number of payments (Loan Term × 12)
The formula calculates the fixed monthly payment required to fully amortize the loan over the term. The total amount paid over the life of the loan will be the monthly payment multiplied by the number of payments.
Worked Example
Let's calculate a mortgage for a $300,000 purchase price with a 20% down payment, 4.5% annual interest rate, and 30-year term.
Example Calculation
- Purchase Price: $300,000
- Down Payment: 20% ($60,000)
- Loan Amount: $240,000
- Annual Interest Rate: 4.5%
- Loan Term: 30 years
Monthly Payment = $240,000 × [0.00375(1 + 0.00375)360] / [(1 + 0.00375)360 - 1]
Monthly Payment ≈ $1,421.33
Total Interest Paid ≈ $157,360
Total Amount Paid ≈ $397,360
This example shows that with a $300,000 mortgage at 4.5% interest over 30 years, you would pay approximately $1,421.33 per month, with $157,360 going toward interest.
Frequently Asked Questions
What is purchase money mortgage?
Purchase money mortgage is a loan used to finance the purchase of a property. It's typically secured by the property itself and requires repayment over a set period with interest.
How is the interest rate determined?
The interest rate is determined by the lender based on factors like your credit score, loan-to-value ratio, market conditions, and the type of mortgage you're applying for.
What happens if I can't make my mortgage payments?
If you can't make your mortgage payments, you should contact your lender immediately. They may offer options like loan modification, forbearance, or refinancing. Missing payments can lead to late fees, damage to your credit score, and potential foreclosure.
Can I pay off my mortgage early?
Yes, you can pay off your mortgage early. Many lenders allow prepayment without penalty, but check your loan agreement for any prepayment terms. Paying off early can save you money on interest and reduce your overall debt.