$300,000 Mortgage at 5.5% for 30 Years
A $300,000 mortgage at 5.5% over 30 years has a monthly principal + interest payment of $1,703. You'll pay $313,212 in total interest, bringing total loan cost to $613,212.
Estimated monthly payment
$2,203
Principal + interest
$1,703
Property tax
$375
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$2,203
1st month interest
$1,375
1st month principal
$328
Total interest
$313,212
Balance after 1 year
$295,959
Balance after 5 years
$277,382
Total cost (P+I)
$613,212
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $4,041 | $16,399 | $295,959 |
| 2 | $4,269 | $16,171 | $291,690 |
| 3 | $4,510 | $15,930 | $287,179 |
| 4 | $4,764 | $15,676 | $282,415 |
| 5 | $5,033 | $15,407 | $277,382 |
| 6 | $5,317 | $15,123 | $272,065 |
| 7 | $5,617 | $14,823 | $266,448 |
| 8 | $5,934 | $14,507 | $260,514 |
| 9 | $6,269 | $14,172 | $254,245 |
| 10 | $6,622 | $13,818 | $247,623 |
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
$1,703
Total payments
360
Total interest
$313,212
Total cost (P+I only)
$613,212
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Last updated: 2026