$125,000 Mortgage at 3% for 15 Years
A $125,000 mortgage at 3% over 15 years has a monthly principal + interest payment of $863. You'll pay $30,381 in total interest, bringing total loan cost to $155,381.
Estimated monthly payment
$1,144
Principal + interest
$863
Property tax
$156
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$1,144
1st month interest
$313
1st month principal
$551
Total interest
$30,381
Balance after 1 year
$118,300
Balance after 5 years
$89,397
Total cost (P+I)
$155,381
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $6,700 | $3,658 | $118,300 |
| 2 | $6,904 | $3,455 | $111,395 |
| 3 | $7,114 | $3,245 | $104,281 |
| 4 | $7,331 | $3,028 | $96,951 |
| 5 | $7,553 | $2,805 | $89,397 |
| 6 | $7,783 | $2,575 | $81,614 |
| 7 | $8,020 | $2,339 | $73,594 |
| 8 | $8,264 | $2,095 | $65,330 |
| 9 | $8,515 | $1,843 | $56,815 |
| 10 | $8,774 | $1,584 | $48,041 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $863 | $30,381 | $155,381 |
| 30 years | $527 | $64,722 | $189,722 |
Choosing 15 years over 30 saves about $34,341 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$863
Total payments
180
Total interest
$30,381
Total cost (P+I only)
$155,381
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Last updated: 2026