$100,000 Mortgage at 5% for 15 Years
A $100,000 mortgage at 5% over 15 years has a monthly principal + interest payment of $791. You'll pay $42,343 in total interest, bringing total loan cost to $142,343.
Estimated monthly payment
$1,041
Principal + interest
$791
Property tax
$125
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$1,041
1st month interest
$417
1st month principal
$374
Total interest
$42,343
Balance after 1 year
$95,406
Balance after 5 years
$74,557
Total cost (P+I)
$142,343
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $4,594 | $4,896 | $95,406 |
| 2 | $4,829 | $4,661 | $90,577 |
| 3 | $5,076 | $4,414 | $85,501 |
| 4 | $5,336 | $4,154 | $80,166 |
| 5 | $5,609 | $3,881 | $74,557 |
| 6 | $5,896 | $3,594 | $68,662 |
| 7 | $6,197 | $3,292 | $62,464 |
| 8 | $6,514 | $2,975 | $55,950 |
| 9 | $6,848 | $2,642 | $49,103 |
| 10 | $7,198 | $2,292 | $41,905 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $791 | $42,343 | $142,343 |
| 30 years | $537 | $93,256 | $193,256 |
Choosing 15 years over 30 saves about $50,913 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$791
Total payments
180
Total interest
$42,343
Total cost (P+I only)
$142,343
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Last updated: 2026