$300,000 Mortgage at 5.5% for 15 Years
A $300,000 mortgage at 5.5% over 15 years has a monthly principal + interest payment of $2,451. You'll pay $141,225 in total interest, bringing total loan cost to $441,225.
Estimated monthly payment
$2,951
Principal + interest
$2,451
Property tax
$375
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$2,951
1st month interest
$1,375
1st month principal
$1,076
Total interest
$141,225
Balance after 1 year
$286,754
Balance after 5 years
$225,867
Total cost (P+I)
$441,225
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $13,246 | $16,169 | $286,754 |
| 2 | $13,993 | $15,422 | $272,762 |
| 3 | $14,782 | $14,633 | $257,980 |
| 4 | $15,616 | $13,799 | $242,364 |
| 5 | $16,497 | $12,918 | $225,867 |
| 6 | $17,427 | $11,988 | $208,440 |
| 7 | $18,410 | $11,005 | $190,029 |
| 8 | $19,449 | $9,966 | $170,581 |
| 9 | $20,546 | $8,869 | $150,035 |
| 10 | $21,705 | $7,710 | $128,330 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $2,451 | $141,225 | $441,225 |
| 30 years | $1,703 | $313,212 | $613,212 |
Choosing 15 years over 30 saves about $171,987 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$2,451
Total payments
180
Total interest
$141,225
Total cost (P+I only)
$441,225
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Last updated: 2026