$550,000 Mortgage at 5.5% for 30 Years
A $550,000 mortgage at 5.5% over 30 years has a monthly principal + interest payment of $3,123. You'll pay $574,222 in total interest, bringing total loan cost to $1,124,222.
Estimated monthly payment
$3,935
Principal + interest
$3,123
Property tax
$688
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$3,935
1st month interest
$2,521
1st month principal
$602
Total interest
$574,222
Balance after 1 year
$542,591
Balance after 5 years
$508,533
Total cost (P+I)
$1,124,222
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $7,409 | $30,065 | $542,591 |
| 2 | $7,827 | $29,647 | $534,764 |
| 3 | $8,268 | $29,206 | $526,496 |
| 4 | $8,735 | $28,739 | $517,761 |
| 5 | $9,228 | $28,247 | $508,533 |
| 6 | $9,748 | $27,726 | $498,785 |
| 7 | $10,298 | $27,176 | $488,487 |
| 8 | $10,879 | $26,595 | $477,609 |
| 9 | $11,492 | $25,982 | $466,116 |
| 10 | $12,141 | $25,333 | $453,975 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $4,494 | $258,913 | $808,913 |
| 30 years | $3,123 | $574,222 | $1,124,222 |
Choosing 15 years over 30 saves about $315,310 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$3,123
Total payments
360
Total interest
$574,222
Total cost (P+I only)
$1,124,222
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Last updated: 2026