$900,000 Mortgage at 5.5% for 15 Years
A $900,000 mortgage at 5.5% over 15 years has a monthly principal + interest payment of $7,354. You'll pay $423,675 in total interest, bringing total loan cost to $1,323,675.
Estimated monthly payment
$8,604
Principal + interest
$7,354
Property tax
$1,125
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$8,604
1st month interest
$4,125
1st month principal
$3,229
Total interest
$423,675
Balance after 1 year
$860,263
Balance after 5 years
$677,601
Total cost (P+I)
$1,323,675
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $39,737 | $48,508 | $860,263 |
| 2 | $41,978 | $46,267 | $818,285 |
| 3 | $44,346 | $43,899 | $773,939 |
| 4 | $46,848 | $41,397 | $727,091 |
| 5 | $49,490 | $38,755 | $677,601 |
| 6 | $52,282 | $35,963 | $625,319 |
| 7 | $55,231 | $33,014 | $570,088 |
| 8 | $58,346 | $29,899 | $511,742 |
| 9 | $61,638 | $26,607 | $450,104 |
| 10 | $65,114 | $23,131 | $384,990 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $7,354 | $423,675 | $1,323,675 |
| 30 years | $5,110 | $939,636 | $1,839,636 |
Choosing 15 years over 30 saves about $515,961 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$7,354
Total payments
180
Total interest
$423,675
Total cost (P+I only)
$1,323,675
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$6,945/mo
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$7,762/mo
$800,000 · 5.5% · 15 yr
$6,537/mo
$1,000,000 · 5.5% · 15 yr
$8,171/mo
$900,000 · 5% · 15 yr
$7,117/mo
$900,000 · 6% · 15 yr
$7,595/mo
$900,000 · 4.5% · 15 yr
$6,885/mo
$900,000 · 6.5% · 15 yr
$7,840/mo
$900,000 · 5.5% · 20 yr
$6,191/mo
$900,000 · 5.5% · 30 yr
$5,110/mo
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Last updated: 2026