Mortgage Down Payment Calculator
Compares lower payments with the opportunity cost of putting more cash toward your down payment.
Payment and interest comparison
| S.No | Date | Payment | Principal | Interest | Balance |
|---|
How to Use This Calculator
- Enter your Minimum and Maximum down payment amounts, the home Purchase price, Loan term (months), and Interest rate. Optionally set what the extra down could earn if invested and a combined tax rate on that return.
- Click Calculate to see whether putting more money down saves you overall, then compare monthly payments and lifetime interest.
- Use the chart to see both monthly payment and total interest side by side for each scenario.
- Review/export the amortization schedule for the higher down payment scenario using Excel or PDF.
Frequently Asked Questions
What do the investment return and tax rate fields do?
They model the opportunity cost of putting more cash toward your down payment instead of saving or investing it. The headline savings figure compares lower monthly payments with the growth you give up on the extra down payment.
Why does a larger down payment reduce monthly payment?
A larger down payment lowers the loan principal, which reduces monthly principal-and-interest payment and usually lowers total interest over the full term.
Does this include taxes, homeowners insurance, HOA, or PMI?
No. This comparison models principal and interest only so you can isolate the down payment effect.
Can maximum down payment equal minimum down payment?
Yes. The tool will compute both scenarios as the same, and savings values will be zero.
Why is the schedule shown for only one scenario?
To keep the page readable, the detailed schedule is shown for the higher down payment scenario while the summary compares both scenarios.
