A $800,000 fixed-rate mortgage at 4.75% APR paid over 20 years costs $5,169.79 per month. Over the life of the loan you would pay $440,749 in interest — 55% of the amount borrowed.
The 4.75% rate on this page is 1.68 points below this week's national average of 6.43% for a 30-year fixed mortgage (Freddie Mac PMMS, July 2, 2026).
| Period | Principal paid | Interest paid | Balance |
|---|
| Scenario | Monthly | Total interest |
|---|---|---|
| $800,000 at 4% (20yr) | $4,847.84 | $363,482 |
| $800,000 at 4.25% (20yr) | $4,953.88 | $388,930 |
| $800,000 at 4.5% (20yr) | $5,061.20 | $414,687 |
| $800,000 at 4.75% (20yr) ← this page | $5,169.79 | $440,749 |
| $800,000 at 5% (20yr) | $5,279.65 | $467,115 |
| $800,000 at 5.25% (20yr) | $5,390.75 | $493,781 |
| $800,000 at 5.5% (20yr) | $5,503.10 | $520,744 |
| $800,000 at 5.75% (20yr) | $5,616.67 | $548,000 |
| $800,000 at 6% (20yr) | $5,731.45 | $575,548 |
| $800,000 at 6.25% (20yr) | $5,847.43 | $603,382 |
| $800,000 at 6.5% (20yr) | $5,964.59 | $631,500 |
| $800,000 at 6.75% (20yr) | $6,082.91 | $659,899 |
| $800,000 at 7% (20yr) | $6,202.39 | $688,574 |
| $800,000 at 7.25% (20yr) | $6,323.01 | $717,522 |
| $800,000 at 7.5% (20yr) | $6,444.75 | $746,739 |
| $800,000 at 7.75% (20yr) | $6,567.59 | $776,221 |
| $800,000 at 8% (20yr) | $6,691.52 | $805,965 |
| $800,000 at 8.5% (20yr) | $6,942.59 | $866,221 |
| $800,000 at 9% (20yr) | $7,197.81 | $927,474 |