$150,000 Mortgage at 8% for 15 Years
A $150,000 mortgage at 8% over 15 years has a monthly principal + interest payment of $1,433. You'll pay $108,026 in total interest, bringing total loan cost to $258,026.
Estimated monthly payment
$1,746
Principal + interest
$1,433
Property tax
$188
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$1,746
1st month interest
$1,000
1st month principal
$433
Total interest
$108,026
Balance after 1 year
$144,603
Balance after 5 years
$118,149
Total cost (P+I)
$258,026
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $5,397 | $11,805 | $144,603 |
| 2 | $5,845 | $11,357 | $138,759 |
| 3 | $6,330 | $10,872 | $132,429 |
| 4 | $6,855 | $10,347 | $125,574 |
| 5 | $7,424 | $9,778 | $118,149 |
| 6 | $8,040 | $9,161 | $110,109 |
| 7 | $8,708 | $8,494 | $101,401 |
| 8 | $9,430 | $7,771 | $91,971 |
| 9 | $10,213 | $6,989 | $81,758 |
| 10 | $11,061 | $6,141 | $70,697 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $1,433 | $108,026 | $258,026 |
| 30 years | $1,101 | $246,233 | $396,233 |
Choosing 15 years over 30 saves about $138,207 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$1,433
Total payments
180
Total interest
$108,026
Total cost (P+I only)
$258,026
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Last updated: 2026