Mortgage Analysis
Monthly Payment on a $1,500,000 Home
With a 20% down payment ($300,000) at a 6.48% interest rate, a $1,500,000 home has a monthly principal and interest payment of $7,569 on a 30-year mortgage, or $9,984 on a 15-year mortgage.
Latest rate: 6.48% (30-yr) / 5.78% (15-yr) from Freddie Mac via FRED for week of 2026-06-04 | Principal and interest only — excludes taxes, insurance, and private mortgage insurance | Use the live calculator to enter your exact rate
Monthly (30-yr)
$7,569
20% down | 6.48% rate
Monthly (15-yr)
$9,984
20% down | 5.78% rate
Total Interest (30-yr)
$1,524,854
over life of loan
Breakdown by Down Payment
Monthly principal and interest only at 6.48% (30-yr) and 5.78% (15-yr) | Freddie Mac data via FRED for week of 2026-06-04
| Down Payment | Down Amount | Loan Amount | 30-yr Payment | 15-yr Payment |
|---|---|---|---|---|
| 3% | $45,000 | $1,455,000 | $9,177 | $12,106 |
| 5% | $75,000 | $1,425,000 | $8,988 | $11,856 |
| 10% | $150,000 | $1,350,000 | $8,515 | $11,232 |
| 20% | $300,000 | $1,200,000 | $7,569 | $9,984 |
The Inflation Connection
Mortgage rates are closely tied to inflation. When inflation runs high, the Federal Reserve raises interest rates to cool the economy — which pushes mortgage rates up and increases your monthly payment. A 1-point rate increase on a $1,200,000 loan adds approximately $805 to your monthly payment. Tracking inflation helps you understand where mortgage rates may be headed.
Get a Live Rate Estimate
The figures above use the latest weekly rate from Freddie Mac (6.48% as of 2026-06-04). Use the full calculator to enter your exact home price, down payment, and loan term — with the rate pre-filled from the Federal Reserve each week.
Open Live Calculator →Other Home Prices
Data Source
Mortgage rate uses the 30-year fixed-rate average published weekly by Freddie Mac via the Federal Reserve Bank of St. Louis (FRED series MORTGAGE30US), last updated week of 2026-06-04. The 15-year rate is estimated at approximately 0.7 percentage points below the 30-year rate, consistent with the typical spread. Figures are principal and interest only — property taxes, homeowners insurance, and private mortgage insurance are excluded. fred.stlouisfed.org | Money & Prices