$300,000 Mortgage at 8.5% for 20 Years
A $300,000 mortgage at 8.5% over 20 years has a monthly principal + interest payment of $2,603. You'll pay $324,833 in total interest, bringing total loan cost to $624,833.
Estimated monthly payment
$3,103
Principal + interest
$2,603
Property tax
$375
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$3,103
1st month interest
$2,125
1st month principal
$478
Total interest
$324,833
Balance after 1 year
$294,029
Balance after 5 years
$264,382
Total cost (P+I)
$624,833
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $5,971 | $25,271 | $294,029 |
| 2 | $6,498 | $24,743 | $287,531 |
| 3 | $7,073 | $24,169 | $280,458 |
| 4 | $7,698 | $23,544 | $272,760 |
| 5 | $8,378 | $22,863 | $264,382 |
| 6 | $9,119 | $22,123 | $255,263 |
| 7 | $9,925 | $21,317 | $245,337 |
| 8 | $10,802 | $20,439 | $234,535 |
| 9 | $11,757 | $19,484 | $222,778 |
| 10 | $12,796 | $18,445 | $209,981 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $2,954 | $231,759 | $531,759 |
| 30 years | $2,307 | $530,427 | $830,427 |
Choosing 15 years over 30 saves about $298,667 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$2,603
Total payments
240
Total interest
$324,833
Total cost (P+I only)
$624,833
Advertisement
Nearby scenarios
Related
Frequently asked
Last updated: 2026