$100,000 Mortgage at 5.5% for 20 Years
A $100,000 mortgage at 5.5% over 20 years has a monthly principal + interest payment of $688. You'll pay $65,093 in total interest, bringing total loan cost to $165,093.
Estimated monthly payment
$938
Principal + interest
$688
Property tax
$125
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$938
1st month interest
$458
1st month principal
$230
Total interest
$65,093
Balance after 1 year
$97,175
Balance after 5 years
$84,188
Total cost (P+I)
$165,093
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $2,825 | $5,429 | $97,175 |
| 2 | $2,985 | $5,270 | $94,190 |
| 3 | $3,153 | $5,102 | $91,037 |
| 4 | $3,331 | $4,924 | $87,707 |
| 5 | $3,519 | $4,736 | $84,188 |
| 6 | $3,717 | $4,538 | $80,471 |
| 7 | $3,927 | $4,328 | $76,544 |
| 8 | $4,148 | $4,106 | $72,396 |
| 9 | $4,382 | $3,872 | $68,014 |
| 10 | $4,629 | $3,625 | $63,384 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $817 | $47,075 | $147,075 |
| 30 years | $568 | $104,404 | $204,404 |
Choosing 15 years over 30 saves about $57,329 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$688
Total payments
240
Total interest
$65,093
Total cost (P+I only)
$165,093
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Last updated: 2026