$300,000 Mortgage at 4% for 15 Years
A $300,000 mortgage at 4% over 15 years has a monthly principal + interest payment of $2,219. You'll pay $99,431 in total interest, bringing total loan cost to $399,431.
Estimated monthly payment
$2,719
Principal + interest
$2,219
Property tax
$375
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$2,719
1st month interest
$1,000
1st month principal
$1,219
Total interest
$99,431
Balance after 1 year
$285,100
Balance after 5 years
$219,177
Total cost (P+I)
$399,431
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $14,900 | $11,729 | $285,100 |
| 2 | $15,507 | $11,122 | $269,593 |
| 3 | $16,139 | $10,490 | $253,454 |
| 4 | $16,796 | $9,832 | $236,658 |
| 5 | $17,481 | $9,148 | $219,177 |
| 6 | $18,193 | $8,436 | $200,985 |
| 7 | $18,934 | $7,695 | $182,051 |
| 8 | $19,705 | $6,923 | $162,345 |
| 9 | $20,508 | $6,121 | $141,837 |
| 10 | $21,344 | $5,285 | $120,493 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $2,219 | $99,431 | $399,431 |
| 30 years | $1,432 | $215,609 | $515,609 |
Choosing 15 years over 30 saves about $116,177 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$2,219
Total payments
180
Total interest
$99,431
Total cost (P+I only)
$399,431
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Nearby scenarios
$275,000 · 4% · 15 yr
$2,034/mo
$325,000 · 4% · 15 yr
$2,404/mo
$250,000 · 4% · 15 yr
$1,849/mo
$350,000 · 4% · 15 yr
$2,589/mo
$300,000 · 3.5% · 15 yr
$2,145/mo
$300,000 · 4.5% · 15 yr
$2,295/mo
$300,000 · 3% · 15 yr
$2,072/mo
$300,000 · 5% · 15 yr
$2,372/mo
$300,000 · 4% · 20 yr
$1,818/mo
$300,000 · 4% · 30 yr
$1,432/mo
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Last updated: 2026