A $650,000 fixed-rate mortgage at 8% APR paid over 10 years costs $7,886.29 per month. Over the life of the loan you would pay $296,355 in interest — 46% of the amount borrowed.
The 8% rate on this page is 2.21 points above this week's national average of 5.79% for a 15-year fixed mortgage (Freddie Mac PMMS, July 2, 2026).
| Period | Principal paid | Interest paid | Balance |
|---|
| Scenario | Monthly | Total interest |
|---|---|---|
| $650,000 at 4% (10yr) | $6,580.93 | $139,712 |
| $650,000 at 4.25% (10yr) | $6,658.44 | $149,013 |
| $650,000 at 4.5% (10yr) | $6,736.50 | $158,380 |
| $650,000 at 4.75% (10yr) | $6,815.10 | $167,812 |
| $650,000 at 5% (10yr) | $6,894.26 | $177,311 |
| $650,000 at 5.25% (10yr) | $6,973.96 | $186,875 |
| $650,000 at 5.5% (10yr) | $7,054.21 | $196,505 |
| $650,000 at 5.75% (10yr) | $7,135.00 | $206,200 |
| $650,000 at 6% (10yr) | $7,216.33 | $215,960 |
| $650,000 at 6.25% (10yr) | $7,298.21 | $225,785 |
| $650,000 at 6.5% (10yr) | $7,380.62 | $235,674 |
| $650,000 at 6.75% (10yr) | $7,463.57 | $245,628 |
| $650,000 at 7% (10yr) | $7,547.05 | $255,646 |
| $650,000 at 7.25% (10yr) | $7,631.07 | $265,728 |
| $650,000 at 7.5% (10yr) | $7,715.61 | $275,874 |
| $650,000 at 7.75% (10yr) | $7,800.69 | $286,083 |
| $650,000 at 8% (10yr) ← this page | $7,886.29 | $296,355 |
| $650,000 at 8.5% (10yr) | $8,059.07 | $317,088 |
| $650,000 at 9% (10yr) | $8,233.93 | $338,071 |